./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2109949825 <...> e=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17741/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17741/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17741/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17741") = 0 mkdir("./17742", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3862 ./strace-static-x86_64: Process 3862 attached [pid 3862] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3862] chdir("./17742") = 0 [pid 3862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3862] setpgid(0, 0) = 0 [pid 3862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3862] write(3, "1000", 4) = 4 [pid 3862] close(3) = 0 [pid 3862] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3862] write(1, "executing program\n", 18) = 18 [pid 3862] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3862] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3862] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3862] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3862] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3862] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3863]}, 88) = 3863 [pid 3862] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3863 attached [pid 3863] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3863] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3863] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3862] <... futex resumed>) = 0 [pid 3862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3863] <... futex resumed>) = 1 [pid 3863] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3862] <... futex resumed>) = 0 [pid 3862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3863] <... futex resumed>) = 1 [pid 3863] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3862] <... futex resumed>) = 0 [pid 3862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3863] <... futex resumed>) = 1 [pid 3863] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3862] <... futex resumed>) = 0 [pid 3862] exit_group(0) = ? [pid 3863] <... futex resumed>) = ? [pid 3863] +++ exited with 0 +++ [pid 3862] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3862, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17742", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17742", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17742/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17742/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17742/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17742") = 0 mkdir("./17743", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3864 ./strace-static-x86_64: Process 3864 attached [pid 3864] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3864] chdir("./17743") = 0 [pid 3864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3864] setpgid(0, 0) = 0 [pid 3864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3864] write(3, "1000", 4) = 4 [pid 3864] close(3) = 0 [pid 3864] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3864] write(1, "executing program\n", 18) = 18 [pid 3864] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3864] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3864] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3864] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3865]}, 88) = 3865 [pid 3864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3865 attached [pid 3865] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3865] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3865] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3864] <... futex resumed>) = 0 [pid 3864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3865] <... futex resumed>) = 1 [pid 3865] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3864] <... futex resumed>) = 0 [pid 3864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3865] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3864] <... futex resumed>) = 0 [pid 3864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3865] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3864] <... futex resumed>) = 0 [pid 3864] exit_group(0) = ? [pid 3865] +++ exited with 0 +++ [pid 3864] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3864, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17743", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17743", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17743/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17743/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17743/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17743") = 0 mkdir("./17744", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3866 attached , child_tidptr=0x55558931b690) = 3866 [pid 3866] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3866] chdir("./17744") = 0 [pid 3866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3866] setpgid(0, 0) = 0 [pid 3866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3866] write(3, "1000", 4) = 4 [pid 3866] close(3) = 0 [pid 3866] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3866] write(1, "executing program\n", 18executing program ) = 18 [pid 3866] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3866] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3867 attached => {parent_tid=[3867]}, 88) = 3867 [pid 3867] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3867] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3867] <... futex resumed>) = 0 [pid 3867] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3867] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3867] <... futex resumed>) = 0 [pid 3867] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3867] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3867] <... futex resumed>) = 0 [pid 3867] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3867] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3867] <... futex resumed>) = 0 [pid 3866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3867] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3867] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3866] exit_group(0) = ? [pid 3867] <... futex resumed>) = ? [pid 3867] +++ exited with 0 +++ [pid 3866] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3866, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17744", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17744", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17744/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17744/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17744/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17744") = 0 mkdir("./17745", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3868 attached [pid 3868] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3868] chdir("./17745" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 3868 [pid 3868] <... chdir resumed>) = 0 [pid 3868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3868] setpgid(0, 0) = 0 [pid 3868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3868] write(3, "1000", 4) = 4 [pid 3868] close(3) = 0 [pid 3868] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3868] write(1, "executing program\n", 18) = 18 [pid 3868] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3868] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3868] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3868] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3868] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3868] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3869 attached => {parent_tid=[3869]}, 88) = 3869 [pid 3868] rt_sigprocmask(SIG_SETMASK, [], [pid 3869] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3868] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3869] <... set_robust_list resumed>) = 0 [pid 3868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3869] rt_sigprocmask(SIG_SETMASK, [], [pid 3868] <... futex resumed>) = 0 [pid 3869] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3869] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3868] <... futex resumed>) = 0 [pid 3868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3869] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3868] <... futex resumed>) = 0 [pid 3868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3869] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3868] <... futex resumed>) = 0 [pid 3868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3869] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3868] <... futex resumed>) = 0 [pid 3868] exit_group(0) = ? [pid 3869] +++ exited with 0 +++ [pid 3868] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3868, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17745", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17745", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17745/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17745/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17745/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17745") = 0 mkdir("./17746", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3870 ./strace-static-x86_64: Process 3870 attached [pid 3870] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3870] chdir("./17746") = 0 [pid 3870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3870] setpgid(0, 0) = 0 [pid 3870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3870] write(3, "1000", 4) = 4 [pid 3870] close(3) = 0 [pid 3870] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3870] write(1, "executing program\n", 18executing program ) = 18 [pid 3870] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3870] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3870] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3870] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3870] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3870] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3871 attached => {parent_tid=[3871]}, 88) = 3871 [pid 3871] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3871] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3870] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3871] <... futex resumed>) = 0 [pid 3871] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3871] <... futex resumed>) = 0 [pid 3871] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3871] <... futex resumed>) = 0 [pid 3871] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3871] <... futex resumed>) = 0 [pid 3871] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3870] exit_group(0) = ? [pid 3871] <... futex resumed>) = ? [pid 3871] +++ exited with 0 +++ [pid 3870] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3870, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17746", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17746", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17746/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17746/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17746/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17746") = 0 mkdir("./17747", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3872 attached [pid 3872] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3872] chdir("./17747" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 3872 [pid 3872] <... chdir resumed>) = 0 [pid 3872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3872] setpgid(0, 0) = 0 [pid 3872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3872] write(3, "1000", 4) = 4 [pid 3872] close(3) = 0 [pid 3872] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3872] write(1, "executing program\n", 18) = 18 [pid 3872] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3872] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3872] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3872] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3872] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3873]}, 88) = 3873 ./strace-static-x86_64: Process 3873 attached [pid 3873] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3873] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3873] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3872] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3873] <... futex resumed>) = 0 [pid 3873] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] <... futex resumed>) = 0 [pid 3872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] <... futex resumed>) = 0 [pid 3872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] <... futex resumed>) = 0 [pid 3872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] <... futex resumed>) = 0 [pid 3872] exit_group(0 [pid 3873] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3872] <... exit_group resumed>) = ? [pid 3873] <... futex resumed>) = ? [pid 3873] +++ exited with 0 +++ [pid 3872] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3872, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17747", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17747", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17747/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17747/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17747/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17747") = 0 mkdir("./17748", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3874 ./strace-static-x86_64: Process 3874 attached [pid 3874] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3874] chdir("./17748") = 0 [pid 3874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3874] setpgid(0, 0) = 0 [pid 3874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3874] write(3, "1000", 4) = 4 [pid 3874] close(3) = 0 [pid 3874] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3874] write(1, "executing program\n", 18executing program ) = 18 [pid 3874] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3874] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3874] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3875]}, 88) = 3875 [pid 3874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3875 attached [pid 3875] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3875] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3874] <... futex resumed>) = 0 [pid 3874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3875] <... futex resumed>) = 1 [pid 3875] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3874] <... futex resumed>) = 0 [pid 3874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3875] <... futex resumed>) = 1 [pid 3875] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3874] <... futex resumed>) = 0 [pid 3874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3875] <... futex resumed>) = 1 [pid 3875] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3874] <... futex resumed>) = 0 [pid 3874] exit_group(0) = ? [pid 3875] <... futex resumed>) = ? [pid 3875] +++ exited with 0 +++ [pid 3874] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3874, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17748", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17748", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17748/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17748/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17748/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17748") = 0 mkdir("./17749", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3876 attached , child_tidptr=0x55558931b690) = 3876 [pid 3876] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3876] chdir("./17749") = 0 [pid 3876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3876] setpgid(0, 0) = 0 [pid 3876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3876] write(3, "1000", 4) = 4 [pid 3876] close(3) = 0 [pid 3876] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3876] write(1, "executing program\n", 18) = 18 [pid 3876] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3876] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3876] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3876] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3876] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3877]}, 88) = 3877 [pid 3876] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3877 attached [pid 3877] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3877] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3876] <... futex resumed>) = 0 [pid 3876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3877] <... futex resumed>) = 1 [pid 3877] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3876] <... futex resumed>) = 0 [pid 3876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3877] <... futex resumed>) = 1 [pid 3877] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3876] <... futex resumed>) = 0 [pid 3876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3877] <... futex resumed>) = 1 [pid 3877] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3876] <... futex resumed>) = 0 [pid 3876] exit_group(0) = ? [pid 3877] <... futex resumed>) = ? [pid 3877] +++ exited with 0 +++ [pid 3876] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3876, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17749", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17749", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17749/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17749/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17749/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17749") = 0 mkdir("./17750", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3878 ./strace-static-x86_64: Process 3878 attached [pid 3878] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3878] chdir("./17750") = 0 [pid 3878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3878] setpgid(0, 0) = 0 [pid 3878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3878] write(3, "1000", 4) = 4 [pid 3878] close(3) = 0 [pid 3878] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3878] write(1, "executing program\n", 18) = 18 [pid 3878] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3878] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3878] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3878] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3879 attached => {parent_tid=[3879]}, 88) = 3879 [pid 3878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3879] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3879] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3878] <... futex resumed>) = 0 [pid 3878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] <... futex resumed>) = 1 [pid 3879] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3878] <... futex resumed>) = 0 [pid 3878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3878] <... futex resumed>) = 0 [pid 3878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3878] <... futex resumed>) = 0 [pid 3878] exit_group(0) = ? [pid 3879] +++ exited with 0 +++ [pid 3878] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3878, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17750", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17750", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17750/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17750/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17750/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17750") = 0 mkdir("./17751", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3880 attached , child_tidptr=0x55558931b690) = 3880 [pid 3880] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3880] chdir("./17751") = 0 [pid 3880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3880] setpgid(0, 0) = 0 [pid 3880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3880] write(3, "1000", 4) = 4 [pid 3880] close(3) = 0 [pid 3880] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3880] write(1, "executing program\n", 18executing program ) = 18 [pid 3880] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3880] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3880] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3880] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3880] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3880] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3881 attached => {parent_tid=[3881]}, 88) = 3881 [pid 3881] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3881] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3880] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3881] <... futex resumed>) = 0 [pid 3881] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3881] <... futex resumed>) = 0 [pid 3881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3881] <... futex resumed>) = 0 [pid 3881] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3881] <... futex resumed>) = 0 [pid 3881] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3881] <... futex resumed>) = 0 [pid 3881] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3880] exit_group(0) = ? [pid 3881] <... futex resumed>) = ? [pid 3881] +++ exited with 0 +++ [pid 3880] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3880, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17751", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17751", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17751/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17751/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17751/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17751") = 0 mkdir("./17752", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3882 ./strace-static-x86_64: Process 3882 attached [pid 3882] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3882] chdir("./17752") = 0 [pid 3882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3882] setpgid(0, 0) = 0 [pid 3882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3882] write(3, "1000", 4) = 4 [pid 3882] close(3) = 0 [pid 3882] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3882] write(1, "executing program\n", 18executing program ) = 18 [pid 3882] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3882] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3882] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3882] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3882] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3882] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3883]}, 88) = 3883 [pid 3882] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3883 attached [pid 3883] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3883] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3882] <... futex resumed>) = 0 [pid 3882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3883] <... futex resumed>) = 1 [pid 3883] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3882] <... futex resumed>) = 0 [pid 3882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3883] <... futex resumed>) = 1 [pid 3883] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3882] <... futex resumed>) = 0 [pid 3882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3883] <... futex resumed>) = 1 [pid 3883] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3882] <... futex resumed>) = 0 [pid 3882] exit_group(0) = ? [pid 3883] <... futex resumed>) = ? [pid 3883] +++ exited with 0 +++ [pid 3882] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3882, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17752", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17752", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17752/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17752/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17752/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17752") = 0 mkdir("./17753", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3884 ./strace-static-x86_64: Process 3884 attached [pid 3884] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3884] chdir("./17753") = 0 [pid 3884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3884] setpgid(0, 0) = 0 [pid 3884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3884] write(3, "1000", 4) = 4 [pid 3884] close(3) = 0 [pid 3884] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3884] write(1, "executing program\n", 18executing program ) = 18 [pid 3884] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3884] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3884] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3885 attached => {parent_tid=[3885]}, 88) = 3885 [pid 3885] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] <... set_robust_list resumed>) = 0 [pid 3885] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3885] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3885] write(-1, "0x0000000000000001", 18 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3884] <... futex resumed>) = 0 [pid 3885] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3884] exit_group(0) = ? [pid 3885] <... futex resumed>) = ? [pid 3885] +++ exited with 0 +++ [pid 3884] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3884, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17753", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17753", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17753/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17753/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17753/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17753") = 0 mkdir("./17754", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3886 ./strace-static-x86_64: Process 3886 attached [pid 3886] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3886] chdir("./17754") = 0 [pid 3886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3886] setpgid(0, 0) = 0 [pid 3886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3886] write(3, "1000", 4) = 4 [pid 3886] close(3) = 0 [pid 3886] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3886] write(1, "executing program\n", 18) = 18 [pid 3886] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3886] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3886] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3886] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3886] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3886] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3887 attached => {parent_tid=[3887]}, 88) = 3887 [pid 3887] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3886] rt_sigprocmask(SIG_SETMASK, [], [pid 3887] <... set_robust_list resumed>) = 0 [pid 3886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3887] rt_sigprocmask(SIG_SETMASK, [], [pid 3886] <... futex resumed>) = 0 [pid 3887] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3887] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3886] <... futex resumed>) = 0 [pid 3887] <... futex resumed>) = 1 [pid 3886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3887] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 3886] <... futex resumed>) = 0 [pid 3886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3887] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 3887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3886] <... futex resumed>) = 0 [pid 3887] <... futex resumed>) = 1 [pid 3886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3887] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3886] <... futex resumed>) = 0 [pid 3886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3887] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 3887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3886] <... futex resumed>) = 0 [pid 3887] <... futex resumed>) = 1 [pid 3886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3887] write(-1, "0x0000000000000001", 18 [pid 3886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3887] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3886] <... futex resumed>) = 0 [pid 3887] <... futex resumed>) = 1 [pid 3886] exit_group(0 [pid 3887] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3886] <... exit_group resumed>) = ? [pid 3887] <... futex resumed>) = ? [pid 3887] +++ exited with 0 +++ [pid 3886] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3886, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17754", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17754", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17754/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17754/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17754/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17754") = 0 mkdir("./17755", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3888 ./strace-static-x86_64: Process 3888 attached [pid 3888] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3888] chdir("./17755") = 0 [pid 3888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3888] setpgid(0, 0) = 0 [pid 3888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3888] write(3, "1000", 4) = 4 [pid 3888] close(3) = 0 [pid 3888] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3888] write(1, "executing program\n", 18) = 18 [pid 3888] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3888] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3888] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3888] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3889 attached => {parent_tid=[3889]}, 88) = 3889 [pid 3889] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3888] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3889] <... set_robust_list resumed>) = 0 [pid 3889] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3889] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3888] <... futex resumed>) = 0 [pid 3888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3889] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3888] <... futex resumed>) = 0 [pid 3888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3889] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3888] <... futex resumed>) = 0 [pid 3888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3889] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3888] <... futex resumed>) = 0 [pid 3888] exit_group(0 [pid 3889] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3888] <... exit_group resumed>) = ? [pid 3889] <... futex resumed>) = ? [pid 3889] +++ exited with 0 +++ [pid 3888] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3888, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17755", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17755", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17755/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17755/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17755/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17755") = 0 mkdir("./17756", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3890 ./strace-static-x86_64: Process 3890 attached [pid 3890] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3890] chdir("./17756") = 0 [pid 3890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3890] setpgid(0, 0) = 0 [pid 3890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3890] write(3, "1000", 4) = 4 [pid 3890] close(3) = 0 [pid 3890] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3890] write(1, "executing program\n", 18) = 18 [pid 3890] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3890] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3891 attached => {parent_tid=[3891]}, 88) = 3891 [pid 3890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3891] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3891] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3890] <... futex resumed>) = 0 [pid 3891] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 3890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3891] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 3890] <... futex resumed>) = 0 [pid 3891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] <... futex resumed>) = 0 [pid 3890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3891] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3891] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 3890] <... futex resumed>) = 0 [pid 3891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] <... futex resumed>) = 0 [pid 3890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3891] write(-1, "0x0000000000000001", 18 [pid 3890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3891] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3890] <... futex resumed>) = 0 [pid 3891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] <... futex resumed>) = 0 [pid 3890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3891] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3890] exit_group(0 [pid 3891] <... futex resumed>) = ? [pid 3890] <... exit_group resumed>) = ? [pid 3891] +++ exited with 0 +++ [pid 3890] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3890, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17756", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17756", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17756/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17756/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17756/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17756") = 0 mkdir("./17757", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3892 ./strace-static-x86_64: Process 3892 attached [pid 3892] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3892] chdir("./17757") = 0 [pid 3892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3892] setpgid(0, 0) = 0 [pid 3892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3892] write(3, "1000", 4) = 4 [pid 3892] close(3) = 0 [pid 3892] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3892] write(1, "executing program\n", 18executing program ) = 18 [pid 3892] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3892] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3892] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3892] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3892] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3892] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3893 attached => {parent_tid=[3893]}, 88) = 3893 [pid 3892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3893] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3893] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3893] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3893] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3892] <... futex resumed>) = 0 [pid 3892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3893] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3893] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3892] <... futex resumed>) = 0 [pid 3892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3893] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3893] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3892] <... futex resumed>) = 0 [pid 3892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3893] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3893] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3892] <... futex resumed>) = 0 [pid 3892] exit_group(0) = ? [pid 3893] +++ exited with 0 +++ [pid 3892] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3892, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17757", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17757", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17757/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17757/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17757/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17757") = 0 mkdir("./17758", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3894 ./strace-static-x86_64: Process 3894 attached [pid 3894] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3894] chdir("./17758") = 0 [pid 3894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3894] setpgid(0, 0) = 0 [pid 3894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3894] write(3, "1000", 4) = 4 [pid 3894] close(3) = 0 [pid 3894] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3894] write(1, "executing program\n", 18executing program ) = 18 [pid 3894] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3894] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3894] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3894] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3894] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3894] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3895]}, 88) = 3895 [pid 3894] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3894] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3894] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3895 attached [pid 3895] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3895] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3895] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3895] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3894] <... futex resumed>) = 0 [pid 3894] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3894] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3895] <... futex resumed>) = 1 [pid 3895] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3895] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3894] <... futex resumed>) = 0 [pid 3894] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3894] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3895] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3895] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3894] <... futex resumed>) = 0 [pid 3894] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3894] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3895] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3895] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3894] <... futex resumed>) = 0 [pid 3894] exit_group(0) = ? [pid 3895] +++ exited with 0 +++ [pid 3894] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3894, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17758", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17758", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17758/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17758/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17758/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17758") = 0 mkdir("./17759", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3896 ./strace-static-x86_64: Process 3896 attached [pid 3896] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3896] chdir("./17759") = 0 [pid 3896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3896] setpgid(0, 0) = 0 [pid 3896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3896] write(3, "1000", 4) = 4 [pid 3896] close(3) = 0 [pid 3896] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3896] write(1, "executing program\n", 18) = 18 [pid 3896] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3896] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3896] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3896] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3896] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3897]}, 88) = 3897 [pid 3896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3896] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3897 attached [pid 3897] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3897] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3897] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3897] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3896] <... futex resumed>) = 0 [pid 3896] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3897] <... futex resumed>) = 1 [pid 3897] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3897] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3896] <... futex resumed>) = 0 [pid 3897] <... futex resumed>) = 1 [pid 3896] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3897] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3897] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3896] <... futex resumed>) = 0 [pid 3896] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3897] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3897] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3896] <... futex resumed>) = 0 [pid 3896] exit_group(0) = ? [pid 3897] +++ exited with 0 +++ [pid 3896] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3896, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17759", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17759", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17759/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17759/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17759/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17759") = 0 mkdir("./17760", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3898 attached , child_tidptr=0x55558931b690) = 3898 [pid 3898] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3898] chdir("./17760") = 0 [pid 3898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3898] setpgid(0, 0) = 0 [pid 3898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3898] write(3, "1000", 4) = 4 [pid 3898] close(3) = 0 [pid 3898] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3898] write(1, "executing program\n", 18) = 18 [pid 3898] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3898] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3898] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3898] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3898] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3898] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3900]}, 88) = 3900 [pid 3898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3898] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3898] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3900 attached [pid 3900] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3900] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3900] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3900] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3898] <... futex resumed>) = 0 [pid 3898] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3900] <... futex resumed>) = 0 [pid 3900] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3898] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3900] <... futex resumed>) = 0 [pid 3900] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3898] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3900] <... futex resumed>) = 0 [pid 3900] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3900] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3898] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3898] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3900] <... futex resumed>) = 0 [pid 3898] <... futex resumed>) = 1 [pid 3900] write(-1, "0x0000000000000001", 18 [pid 3898] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3900] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3898] <... futex resumed>) = 0 [pid 3900] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3898] exit_group(0) = ? [pid 3900] <... futex resumed>) = ? [pid 3900] +++ exited with 0 +++ [pid 3898] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3898, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17760", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17760", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17760/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17760/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17760/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17760") = 0 mkdir("./17761", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3901 ./strace-static-x86_64: Process 3901 attached [pid 3901] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3901] chdir("./17761") = 0 [pid 3901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3901] setpgid(0, 0) = 0 [pid 3901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3901] write(3, "1000", 4) = 4 [pid 3901] close(3) = 0 [pid 3901] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3901] write(1, "executing program\n", 18executing program ) = 18 [pid 3901] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3901] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3901] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3902 attached => {parent_tid=[3902]}, 88) = 3902 [pid 3902] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3902] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3902] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3901] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3902] <... futex resumed>) = 0 [pid 3902] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3902] <... futex resumed>) = 0 [pid 3902] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3902] <... futex resumed>) = 0 [pid 3902] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3902] <... futex resumed>) = 0 [pid 3901] <... futex resumed>) = 1 [pid 3902] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3901] exit_group(0) = ? [pid 3902] <... futex resumed>) = ? [pid 3902] +++ exited with 0 +++ [pid 3901] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3901, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17761", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17761", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17761/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17761/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17761/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17761") = 0 mkdir("./17762", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3903 ./strace-static-x86_64: Process 3903 attached [pid 3903] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3903] chdir("./17762") = 0 [pid 3903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3903] setpgid(0, 0) = 0 [pid 3903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3903] write(3, "1000", 4) = 4 [pid 3903] close(3) = 0 [pid 3903] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3903] write(1, "executing program\n", 18executing program ) = 18 [pid 3903] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3903] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3903] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3903] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3903] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3903] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3904 attached => {parent_tid=[3904]}, 88) = 3904 [pid 3903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3904] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3904] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3904] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3903] <... futex resumed>) = 0 [pid 3903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3904] <... futex resumed>) = 1 [pid 3904] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3903] <... futex resumed>) = 0 [pid 3903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3904] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3903] <... futex resumed>) = 0 [pid 3903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3904] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3903] <... futex resumed>) = 0 [pid 3903] exit_group(0) = ? [pid 3904] +++ exited with 0 +++ [pid 3903] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3903, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17762", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17762", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17762/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17762/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17762/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17762") = 0 mkdir("./17763", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3905 ./strace-static-x86_64: Process 3905 attached [pid 3905] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3905] chdir("./17763") = 0 [pid 3905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3905] setpgid(0, 0) = 0 [pid 3905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3905] write(3, "1000", 4) = 4 [pid 3905] close(3) = 0 [pid 3905] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3905] write(1, "executing program\n", 18executing program ) = 18 [pid 3905] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3905] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3905] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3905] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3905] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3906 attached => {parent_tid=[3906]}, 88) = 3906 [pid 3906] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3906] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3905] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3906] <... futex resumed>) = 0 [pid 3906] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3906] <... futex resumed>) = 0 [pid 3906] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3906] <... futex resumed>) = 0 [pid 3906] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3906] <... futex resumed>) = 0 [pid 3906] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3905] exit_group(0) = ? [pid 3906] <... futex resumed>) = ? [pid 3906] +++ exited with 0 +++ [pid 3905] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3905, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17763", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17763", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17763/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17763/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17763/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17763") = 0 mkdir("./17764", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3907 ./strace-static-x86_64: Process 3907 attached [pid 3907] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3907] chdir("./17764") = 0 [pid 3907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3907] setpgid(0, 0) = 0 [pid 3907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3907] write(3, "1000", 4) = 4 [pid 3907] close(3) = 0 [pid 3907] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3907] write(1, "executing program\n", 18) = 18 [pid 3907] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3907] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3907] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3908 attached => {parent_tid=[3908]}, 88) = 3908 [pid 3907] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3908] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3908] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3907] <... futex resumed>) = 0 [pid 3907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3908] <... futex resumed>) = 1 [pid 3908] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3907] <... futex resumed>) = 0 [pid 3907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3908] <... futex resumed>) = 1 [pid 3908] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3907] <... futex resumed>) = 0 [pid 3907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3908] <... futex resumed>) = 1 [pid 3908] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3907] <... futex resumed>) = 0 [pid 3907] exit_group(0) = ? [pid 3908] +++ exited with 0 +++ [pid 3907] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3907, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17764", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17764", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17764/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17764/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17764/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17764") = 0 mkdir("./17765", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3909 ./strace-static-x86_64: Process 3909 attached [pid 3909] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3909] chdir("./17765") = 0 [pid 3909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3909] setpgid(0, 0) = 0 [pid 3909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3909] write(3, "1000", 4) = 4 [pid 3909] close(3) = 0 [pid 3909] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3909] write(1, "executing program\n", 18) = 18 [pid 3909] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3909] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3909] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3909] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3909] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3909] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3909] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3910]}, 88) = 3910 [pid 3909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3910 attached [pid 3910] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3910] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3910] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3909] <... futex resumed>) = 0 [pid 3909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3910] <... futex resumed>) = 0 [pid 3910] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3910] <... futex resumed>) = 0 [pid 3909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3910] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3910] <... futex resumed>) = 0 [pid 3910] write(-1, "0x0000000000000001", 18 [pid 3909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3910] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3909] exit_group(0) = ? [pid 3910] <... futex resumed>) = ? [pid 3910] +++ exited with 0 +++ [pid 3909] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3909, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17765", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17765", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17765/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17765/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17765/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17765") = 0 mkdir("./17766", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3911 attached , child_tidptr=0x55558931b690) = 3911 [pid 3911] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3911] chdir("./17766") = 0 [pid 3911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3911] setpgid(0, 0) = 0 [pid 3911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3911] write(3, "1000", 4) = 4 [pid 3911] close(3) = 0 [pid 3911] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3911] write(1, "executing program\n", 18executing program ) = 18 [pid 3911] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3911] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3911] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3911] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3912 attached => {parent_tid=[3912]}, 88) = 3912 [pid 3911] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3912] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3912] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3911] <... futex resumed>) = 0 [pid 3911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3912] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3911] <... futex resumed>) = 0 [pid 3911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3912] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3911] <... futex resumed>) = 0 [pid 3911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3912] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3911] <... futex resumed>) = 0 [pid 3911] exit_group(0) = ? [pid 3912] +++ exited with 0 +++ [pid 3911] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3911, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17766", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17766", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17766/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17766/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17766/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17766") = 0 mkdir("./17767", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3913 ./strace-static-x86_64: Process 3913 attached [pid 3913] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3913] chdir("./17767") = 0 [pid 3913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3913] setpgid(0, 0) = 0 [pid 3913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3913] write(3, "1000", 4) = 4 [pid 3913] close(3) = 0 [pid 3913] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3913] write(1, "executing program\n", 18) = 18 [pid 3913] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3913] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3913] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3913] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3913] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3913] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3914 attached [pid 3914] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3913] <... clone3 resumed> => {parent_tid=[3914]}, 88) = 3914 [pid 3914] rt_sigprocmask(SIG_SETMASK, [], [pid 3913] rt_sigprocmask(SIG_SETMASK, [], [pid 3914] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3913] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3914] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3913] <... futex resumed>) = 0 [pid 3914] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3914] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3913] <... futex resumed>) = 0 [pid 3914] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 3913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3914] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 3913] <... futex resumed>) = 0 [pid 3914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3914] <... futex resumed>) = 0 [pid 3913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3914] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3914] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 3913] <... futex resumed>) = 0 [pid 3914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3914] <... futex resumed>) = 0 [pid 3913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3914] write(-1, "0x0000000000000001", 18 [pid 3913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3914] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3913] <... futex resumed>) = 0 [pid 3914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3914] <... futex resumed>) = 0 [pid 3913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3914] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3913] exit_group(0 [pid 3914] <... futex resumed>) = ? [pid 3913] <... exit_group resumed>) = ? [pid 3914] +++ exited with 0 +++ [pid 3913] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3913, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17767", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17767", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17767/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17767/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17767/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17767") = 0 mkdir("./17768", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3915 ./strace-static-x86_64: Process 3915 attached [pid 3915] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3915] chdir("./17768") = 0 [pid 3915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3915] setpgid(0, 0) = 0 [pid 3915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3915] write(3, "1000", 4) = 4 [pid 3915] close(3) = 0 [pid 3915] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3915] write(1, "executing program\n", 18) = 18 [pid 3915] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3915] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3915] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3915] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3915] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3916 attached => {parent_tid=[3916]}, 88) = 3916 [pid 3915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3916] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3916] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3915] <... futex resumed>) = 0 [pid 3915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3916] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3915] <... futex resumed>) = 0 [pid 3915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3916] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3915] <... futex resumed>) = 0 [pid 3915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3916] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3915] <... futex resumed>) = 0 [pid 3915] exit_group(0) = ? [pid 3916] +++ exited with 0 +++ [pid 3915] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3915, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17768", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17768", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17768/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17768/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17768/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17768") = 0 mkdir("./17769", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3917 ./strace-static-x86_64: Process 3917 attached [pid 3917] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3917] chdir("./17769") = 0 [pid 3917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3917] setpgid(0, 0) = 0 [pid 3917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3917] write(3, "1000", 4) = 4 [pid 3917] close(3) = 0 [pid 3917] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3917] write(1, "executing program\n", 18) = 18 [pid 3917] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3917] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3917] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3917] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3917] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3918 attached => {parent_tid=[3918]}, 88) = 3918 [pid 3918] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3917] rt_sigprocmask(SIG_SETMASK, [], [pid 3918] <... set_robust_list resumed>) = 0 [pid 3917] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3918] rt_sigprocmask(SIG_SETMASK, [], [pid 3917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3918] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3917] <... futex resumed>) = 0 [pid 3918] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3917] <... futex resumed>) = 0 [pid 3918] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 3917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3918] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 3917] <... futex resumed>) = 0 [pid 3918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... futex resumed>) = 0 [pid 3917] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3918] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3918] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 3917] <... futex resumed>) = 0 [pid 3918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... futex resumed>) = 0 [pid 3917] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3918] write(-1, "0x0000000000000001", 18 [pid 3917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3918] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3917] <... futex resumed>) = 0 [pid 3918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... futex resumed>) = 0 [pid 3917] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3918] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3917] exit_group(0 [pid 3918] <... futex resumed>) = ? [pid 3917] <... exit_group resumed>) = ? [pid 3918] +++ exited with 0 +++ [pid 3917] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3917, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17769", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17769", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17769/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17769/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17769/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17769") = 0 mkdir("./17770", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3919 ./strace-static-x86_64: Process 3919 attached [pid 3919] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3919] chdir("./17770") = 0 [pid 3919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3919] setpgid(0, 0) = 0 [pid 3919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3919] write(3, "1000", 4) = 4 [pid 3919] close(3) = 0 [pid 3919] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3919] write(1, "executing program\n", 18executing program ) = 18 [pid 3919] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3919] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3919] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3919] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3919] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3919] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3920 attached [pid 3920] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3920] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3919] <... clone3 resumed> => {parent_tid=[3920]}, 88) = 3920 [pid 3919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3920] <... futex resumed>) = 0 [pid 3920] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3920] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3919] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3920] <... futex resumed>) = 0 [pid 3920] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3919] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3920] <... futex resumed>) = 0 [pid 3920] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3920] <... futex resumed>) = 0 [pid 3919] <... futex resumed>) = 1 [pid 3920] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3919] exit_group(0) = ? [pid 3920] <... futex resumed>) = ? [pid 3920] +++ exited with 0 +++ [pid 3919] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3919, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17770", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17770", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17770/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17770/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17770/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17770") = 0 mkdir("./17771", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3921 ./strace-static-x86_64: Process 3921 attached [pid 3921] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3921] chdir("./17771") = 0 [pid 3921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3921] setpgid(0, 0) = 0 [pid 3921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3921] write(3, "1000", 4) = 4 [pid 3921] close(3) = 0 [pid 3921] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3921] write(1, "executing program\n", 18executing program ) = 18 [pid 3921] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3921] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3921] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3921] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3921] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3921] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3921] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3922 attached => {parent_tid=[3922]}, 88) = 3922 [pid 3922] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3922] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3921] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3922] <... futex resumed>) = 0 [pid 3922] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3922] <... futex resumed>) = 0 [pid 3922] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3922] <... futex resumed>) = 0 [pid 3922] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3922] <... futex resumed>) = 0 [pid 3922] write(-1, "0x0000000000000001", 18 [pid 3921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3922] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3921] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3921] exit_group(0) = ? [pid 3922] <... futex resumed>) = ? [pid 3922] +++ exited with 0 +++ [pid 3921] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3921, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17771", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17771", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17771/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17771/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17771/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17771") = 0 mkdir("./17772", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3923 ./strace-static-x86_64: Process 3923 attached [pid 3923] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3923] chdir("./17772") = 0 [pid 3923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3923] setpgid(0, 0) = 0 [pid 3923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3923] write(3, "1000", 4) = 4 [pid 3923] close(3) = 0 [pid 3923] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3923] write(1, "executing program\n", 18executing program ) = 18 [pid 3923] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3923] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3923] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3923] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3923] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3923] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3924 attached => {parent_tid=[3924]}, 88) = 3924 [pid 3924] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3924] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3924] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3924] <... futex resumed>) = 0 [pid 3924] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3924] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3924] <... futex resumed>) = 0 [pid 3924] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3924] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3924] <... futex resumed>) = 0 [pid 3924] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3924] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3924] <... futex resumed>) = 0 [pid 3924] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3924] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3923] exit_group(0) = ? [pid 3924] <... futex resumed>) = ? [pid 3924] +++ exited with 0 +++ [pid 3923] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3923, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17772", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17772", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17772/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17772/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17772/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17772") = 0 mkdir("./17773", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3925 ./strace-static-x86_64: Process 3925 attached [pid 3925] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3925] chdir("./17773") = 0 [pid 3925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3925] setpgid(0, 0) = 0 [pid 3925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3925] write(3, "1000", 4) = 4 [pid 3925] close(3) = 0 [pid 3925] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3925] write(1, "executing program\n", 18executing program ) = 18 [pid 3925] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3925] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3925] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3925] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3925] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3925] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3926]}, 88) = 3926 [pid 3925] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3926 attached [pid 3926] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3926] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3926] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3925] <... futex resumed>) = 0 [pid 3925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3926] <... futex resumed>) = 1 [pid 3926] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3925] <... futex resumed>) = 0 [pid 3925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3926] <... futex resumed>) = 1 [pid 3926] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3925] <... futex resumed>) = 0 [pid 3925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3926] <... futex resumed>) = 1 [pid 3926] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3925] <... futex resumed>) = 0 [pid 3925] exit_group(0) = ? [pid 3926] <... futex resumed>) = ? [pid 3926] +++ exited with 0 +++ [pid 3925] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3925, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17773", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17773", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17773/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17773/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17773/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17773") = 0 mkdir("./17774", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3927 ./strace-static-x86_64: Process 3927 attached [pid 3927] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3927] chdir("./17774") = 0 [pid 3927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3927] setpgid(0, 0) = 0 [pid 3927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3927] write(3, "1000", 4) = 4 [pid 3927] close(3) = 0 [pid 3927] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3927] write(1, "executing program\n", 18) = 18 [pid 3927] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3927] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3927] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3927] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3927] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3927] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3927] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3928 attached => {parent_tid=[3928]}, 88) = 3928 [pid 3928] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3928] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3928] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3927] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3928] <... futex resumed>) = 0 [pid 3927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3928] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3928] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3928] <... futex resumed>) = 0 [pid 3928] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3928] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3928] <... futex resumed>) = 0 [pid 3928] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3928] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3928] <... futex resumed>) = 0 [pid 3928] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3928] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3927] exit_group(0) = ? [pid 3928] <... futex resumed>) = ? [pid 3928] +++ exited with 0 +++ [pid 3927] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3927, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17774", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17774", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17774/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17774/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17774/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17774") = 0 mkdir("./17775", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3929 ./strace-static-x86_64: Process 3929 attached [pid 3929] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3929] chdir("./17775") = 0 [pid 3929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3929] setpgid(0, 0) = 0 [pid 3929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3929] write(3, "1000", 4) = 4 [pid 3929] close(3) = 0 [pid 3929] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3929] write(1, "executing program\n", 18executing program ) = 18 [pid 3929] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3929] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3929] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3929] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3929] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3929] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3930 attached => {parent_tid=[3930]}, 88) = 3930 [pid 3930] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3930] <... set_robust_list resumed>) = 0 [pid 3929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3930] rt_sigprocmask(SIG_SETMASK, [], [pid 3929] <... futex resumed>) = 0 [pid 3930] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3929] <... futex resumed>) = 0 [pid 3929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3929] <... futex resumed>) = 0 [pid 3929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3929] <... futex resumed>) = 0 [pid 3929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3929] <... futex resumed>) = 0 [pid 3929] exit_group(0) = ? [pid 3930] +++ exited with 0 +++ [pid 3929] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3929, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17775", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17775", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17775/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17775/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17775/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17775") = 0 mkdir("./17776", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3931 ./strace-static-x86_64: Process 3931 attached [pid 3931] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3931] chdir("./17776") = 0 [pid 3931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3931] setpgid(0, 0) = 0 [pid 3931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3931] write(3, "1000", 4) = 4 [pid 3931] close(3) = 0 [pid 3931] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3931] write(1, "executing program\n", 18) = 18 [pid 3931] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3931] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3931] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3931] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3931] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3931] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3931] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3932]}, 88) = 3932 [pid 3931] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3932 attached [pid 3932] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3932] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3931] <... futex resumed>) = 0 [pid 3931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3932] <... futex resumed>) = 1 [pid 3932] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3931] <... futex resumed>) = 0 [pid 3931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3932] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3931] <... futex resumed>) = 0 [pid 3931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3932] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3931] <... futex resumed>) = 0 [pid 3931] exit_group(0 [pid 3932] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3931] <... exit_group resumed>) = ? [pid 3932] <... futex resumed>) = ? [pid 3932] +++ exited with 0 +++ [pid 3931] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3931, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17776", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17776", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17776/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17776/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17776/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17776") = 0 mkdir("./17777", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3933 attached , child_tidptr=0x55558931b690) = 3933 [pid 3933] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3933] chdir("./17777") = 0 [pid 3933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3933] setpgid(0, 0) = 0 [pid 3933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3933] write(3, "1000", 4) = 4 [pid 3933] close(3) = 0 [pid 3933] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3933] write(1, "executing program\n", 18executing program ) = 18 [pid 3933] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3933] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3933] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3933] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3933] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3933] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3933] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3934 attached => {parent_tid=[3934]}, 88) = 3934 [pid 3934] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3934] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3933] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3934] <... futex resumed>) = 0 [pid 3933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3934] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3933] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3934] <... futex resumed>) = 0 [pid 3934] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3933] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3934] <... futex resumed>) = 0 [pid 3934] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3933] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3934] <... futex resumed>) = 0 [pid 3934] write(-1, "0x0000000000000001", 18 [pid 3933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3934] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3933] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3933] exit_group(0) = ? [pid 3934] <... futex resumed>) = ? [pid 3934] +++ exited with 0 +++ [pid 3933] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3933, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17777", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17777", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17777/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17777/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17777/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17777") = 0 mkdir("./17778", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3935 ./strace-static-x86_64: Process 3935 attached [pid 3935] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3935] chdir("./17778") = 0 [pid 3935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3935] setpgid(0, 0) = 0 [pid 3935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3935] write(3, "1000", 4) = 4 [pid 3935] close(3) = 0 [pid 3935] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3935] write(1, "executing program\n", 18) = 18 [pid 3935] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3935] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3935] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3935] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3935] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3936]}, 88) = 3936 [pid 3935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3936 attached [pid 3936] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3936] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3935] <... futex resumed>) = 0 [pid 3935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3936] <... futex resumed>) = 1 [pid 3936] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3935] <... futex resumed>) = 0 [pid 3935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3936] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3935] <... futex resumed>) = 0 [pid 3935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3936] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3935] <... futex resumed>) = 0 [pid 3935] exit_group(0) = ? [pid 3936] +++ exited with 0 +++ [pid 3935] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3935, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17778", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17778", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17778/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17778/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17778/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17778") = 0 mkdir("./17779", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3937 ./strace-static-x86_64: Process 3937 attached [pid 3937] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3937] chdir("./17779") = 0 [pid 3937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3937] setpgid(0, 0) = 0 [pid 3937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3937] write(3, "1000", 4) = 4 [pid 3937] close(3) = 0 [pid 3937] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3937] write(1, "executing program\n", 18executing program ) = 18 [pid 3937] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3937] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3937] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3937] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3937] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3937] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3937] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3938 attached => {parent_tid=[3938]}, 88) = 3938 [pid 3937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3938] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3938] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3937] <... futex resumed>) = 0 [pid 3937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3938] <... futex resumed>) = 1 [pid 3938] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3937] <... futex resumed>) = 0 [pid 3937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3938] <... futex resumed>) = 1 [pid 3938] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3937] <... futex resumed>) = 0 [pid 3937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3938] <... futex resumed>) = 1 [pid 3938] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3937] <... futex resumed>) = 0 [pid 3937] exit_group(0) = ? [pid 3938] +++ exited with 0 +++ [pid 3937] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3937, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17779", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17779", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17779/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17779/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17779/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17779") = 0 mkdir("./17780", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3939 ./strace-static-x86_64: Process 3939 attached [pid 3939] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3939] chdir("./17780") = 0 [pid 3939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3939] setpgid(0, 0) = 0 [pid 3939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3939] write(3, "1000", 4) = 4 [pid 3939] close(3) = 0 [pid 3939] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3939] write(1, "executing program\n", 18executing program ) = 18 [pid 3939] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3939] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3939] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3939] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3939] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3939] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3939] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3940 attached => {parent_tid=[3940]}, 88) = 3940 [pid 3940] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3940] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3940] <... futex resumed>) = 0 [pid 3939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3940] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3940] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3939] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3940] <... futex resumed>) = 0 [pid 3940] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 3939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3940] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 3940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3940] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3939] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3940] <... futex resumed>) = 0 [pid 3940] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3940] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 3940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3940] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3939] <... futex resumed>) = 0 [pid 3939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3940] <... futex resumed>) = 0 [pid 3939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3940] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3939] <... futex resumed>) = 0 [pid 3940] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3939] exit_group(0 [pid 3940] <... futex resumed>) = ? [pid 3939] <... exit_group resumed>) = ? [pid 3940] +++ exited with 0 +++ [pid 3939] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3939, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./17780", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17780", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17780/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17780/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17780/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17780") = 0 mkdir("./17781", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3941 attached , child_tidptr=0x55558931b690) = 3941 [pid 3941] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3941] chdir("./17781") = 0 [pid 3941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3941] setpgid(0, 0) = 0 [pid 3941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3941] write(3, "1000", 4) = 4 [pid 3941] close(3) = 0 [pid 3941] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3941] write(1, "executing program\n", 18executing program ) = 18 [pid 3941] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3941] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3941] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3941] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3941] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3941] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3941] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3942 attached => {parent_tid=[3942]}, 88) = 3942 [pid 3942] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3942] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3942] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3942] <... futex resumed>) = 0 [pid 3942] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3942] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3942] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3942] <... futex resumed>) = 0 [pid 3942] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3942] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3942] <... futex resumed>) = 0 [pid 3942] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3942] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3942] <... futex resumed>) = 0 [pid 3941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3942] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3941] <... futex resumed>) = 0 [pid 3942] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3941] exit_group(0) = ? [pid 3942] <... futex resumed>) = ? [pid 3942] +++ exited with 0 +++ [pid 3941] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3941, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17781", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17781", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17781/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17781/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17781/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17781") = 0 mkdir("./17782", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3943 attached , child_tidptr=0x55558931b690) = 3943 [pid 3943] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3943] chdir("./17782") = 0 [pid 3943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3943] setpgid(0, 0) = 0 [pid 3943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3943] write(3, "1000", 4) = 4 [pid 3943] close(3) = 0 [pid 3943] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3943] write(1, "executing program\n", 18) = 18 [pid 3943] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3943] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3943] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3943] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3943] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3943] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3944]}, 88) = 3944 [pid 3943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3944 attached [pid 3944] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3944] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3944] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3943] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3944] <... futex resumed>) = 0 [pid 3944] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3943] <... futex resumed>) = 0 [pid 3943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3944] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3943] <... futex resumed>) = 0 [pid 3943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3944] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3943] <... futex resumed>) = 0 [pid 3943] exit_group(0) = ? [pid 3944] +++ exited with 0 +++ [pid 3943] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3943, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17782", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17782", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17782/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17782/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17782/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17782") = 0 mkdir("./17783", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3945 ./strace-static-x86_64: Process 3945 attached [pid 3945] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3945] chdir("./17783") = 0 [pid 3945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3945] setpgid(0, 0) = 0 [pid 3945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3945] write(3, "1000", 4) = 4 [pid 3945] close(3) = 0 [pid 3945] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3945] write(1, "executing program\n", 18executing program ) = 18 [pid 3945] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3945] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3945] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3945] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3945] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3945] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3946 attached => {parent_tid=[3946]}, 88) = 3946 [pid 3946] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3946] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3946] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3945] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3946] <... futex resumed>) = 0 [pid 3946] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3946] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3946] <... futex resumed>) = 0 [pid 3946] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3946] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3946] <... futex resumed>) = 0 [pid 3946] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3946] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3946] <... futex resumed>) = 0 [pid 3946] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3946] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3945] exit_group(0) = ? [pid 3946] <... futex resumed>) = ? [pid 3946] +++ exited with 0 +++ [pid 3945] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3945, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17783", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17783", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17783/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17783/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17783/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17783") = 0 mkdir("./17784", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3947 ./strace-static-x86_64: Process 3947 attached [pid 3947] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3947] chdir("./17784") = 0 [pid 3947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3947] setpgid(0, 0) = 0 [pid 3947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3947] write(3, "1000", 4) = 4 [pid 3947] close(3) = 0 [pid 3947] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3947] write(1, "executing program\n", 18executing program ) = 18 [pid 3947] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3947] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3947] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3947] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3947] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3947] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3948]}, 88) = 3948 [pid 3947] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3948 attached [pid 3948] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3948] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3948] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3948] <... futex resumed>) = 1 [pid 3948] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3948] <... futex resumed>) = 1 [pid 3948] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3948] <... futex resumed>) = 1 [pid 3948] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] exit_group(0) = ? [pid 3948] <... futex resumed>) = ? [pid 3948] +++ exited with 0 +++ [pid 3947] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3947, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17784", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17784", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17784/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17784/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17784/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17784") = 0 mkdir("./17785", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3949 ./strace-static-x86_64: Process 3949 attached [pid 3949] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3949] chdir("./17785") = 0 [pid 3949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3949] setpgid(0, 0) = 0 [pid 3949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3949] write(3, "1000", 4) = 4 [pid 3949] close(3) = 0 [pid 3949] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3949] write(1, "executing program\n", 18executing program ) = 18 [pid 3949] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3949] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3949] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3949] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3949] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3949] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3950 attached => {parent_tid=[3950]}, 88) = 3950 [pid 3949] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3950] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3950] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3949] <... futex resumed>) = 0 [pid 3949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3950] <... futex resumed>) = 1 [pid 3950] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3949] <... futex resumed>) = 0 [pid 3949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3950] <... futex resumed>) = 1 [pid 3950] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3949] <... futex resumed>) = 0 [pid 3949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3950] <... futex resumed>) = 1 [pid 3950] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3949] <... futex resumed>) = 0 [pid 3949] exit_group(0 [pid 3950] ????( [pid 3949] <... exit_group resumed>) = ? [pid 3950] <... ???? resumed>) = ? [pid 3950] +++ exited with 0 +++ [pid 3949] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3949, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17785", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17785", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17785/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17785/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17785/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17785") = 0 mkdir("./17786", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3951 ./strace-static-x86_64: Process 3951 attached [pid 3951] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3951] chdir("./17786") = 0 [pid 3951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3951] setpgid(0, 0) = 0 [pid 3951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3951] write(3, "1000", 4) = 4 [pid 3951] close(3) = 0 [pid 3951] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3951] write(1, "executing program\n", 18executing program ) = 18 [pid 3951] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3951] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3951] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3951] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3951] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3951] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3951] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3952 attached => {parent_tid=[3952]}, 88) = 3952 [pid 3952] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3952] <... set_robust_list resumed>) = 0 [pid 3952] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3952] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3951] <... futex resumed>) = 0 [pid 3951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3952] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3951] <... futex resumed>) = 0 [pid 3951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3952] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3951] <... futex resumed>) = 0 [pid 3951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3952] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3951] <... futex resumed>) = 0 [pid 3951] exit_group(0) = ? [pid 3952] +++ exited with 0 +++ [pid 3951] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3951, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17786", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17786", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17786/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17786/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17786/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17786") = 0 mkdir("./17787", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3953 attached , child_tidptr=0x55558931b690) = 3953 [pid 3953] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3953] chdir("./17787") = 0 [pid 3953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3953] setpgid(0, 0) = 0 [pid 3953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3953] write(3, "1000", 4) = 4 [pid 3953] close(3) = 0 [pid 3953] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3953] write(1, "executing program\n", 18executing program ) = 18 [pid 3953] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3953] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3953] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3953] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3954 attached => {parent_tid=[3954]}, 88) = 3954 [pid 3954] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3954] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3954] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3954] <... futex resumed>) = 0 [pid 3954] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3954] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3954] <... futex resumed>) = 0 [pid 3953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3954] <... futex resumed>) = 0 [pid 3953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3954] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3953] <... futex resumed>) = 0 [pid 3953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 3954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3953] <... futex resumed>) = 0 [pid 3954] <... futex resumed>) = 1 [pid 3953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3953] <... futex resumed>) = 0 [pid 3954] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3953] exit_group(0) = ? [pid 3954] <... futex resumed>) = ? [pid 3954] +++ exited with 0 +++ [pid 3953] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3953, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17787", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17787", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17787/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17787/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17787/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17787") = 0 mkdir("./17788", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3955 attached , child_tidptr=0x55558931b690) = 3955 [pid 3955] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3955] chdir("./17788") = 0 [pid 3955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3955] setpgid(0, 0) = 0 [pid 3955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3955] write(3, "1000", 4) = 4 [pid 3955] close(3) = 0 [pid 3955] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3955] write(1, "executing program\n", 18) = 18 [pid 3955] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3955] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3955] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3955] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3955] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3955] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3956]}, 88) = 3956 ./strace-static-x86_64: Process 3956 attached [pid 3955] rt_sigprocmask(SIG_SETMASK, [], [pid 3956] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3956] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3955] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3956] <... futex resumed>) = 0 [pid 3956] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3956] <... futex resumed>) = 0 [pid 3956] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3956] <... futex resumed>) = 0 [pid 3955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3956] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3955] <... futex resumed>) = 0 [pid 3955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3956] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3955] <... futex resumed>) = 0 [pid 3956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3955] exit_group(0) = ? [pid 3956] <... futex resumed>) = ? [pid 3956] +++ exited with 0 +++ [pid 3955] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3955, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17788", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17788", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17788/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17788/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17788/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17788") = 0 mkdir("./17789", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3957 ./strace-static-x86_64: Process 3957 attached [pid 3957] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3957] chdir("./17789") = 0 [pid 3957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3957] setpgid(0, 0) = 0 [pid 3957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3957] write(3, "1000", 4) = 4 [pid 3957] close(3) = 0 [pid 3957] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3957] write(1, "executing program\n", 18) = 18 [pid 3957] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3957] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3957] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3957] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3957] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3957] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3958 attached [pid 3958] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3958] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3958] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3957] <... clone3 resumed> => {parent_tid=[3958]}, 88) = 3958 [pid 3957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3958] <... futex resumed>) = 0 [pid 3958] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3958] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3958] <... futex resumed>) = 0 [pid 3957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3958] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3957] <... futex resumed>) = 0 [pid 3958] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3958] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 3958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3957] <... futex resumed>) = 0 [pid 3957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3958] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3957] <... futex resumed>) = 0 [pid 3958] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3957] exit_group(0) = ? [pid 3958] <... futex resumed>) = ? [pid 3958] +++ exited with 0 +++ [pid 3957] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3957, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./17789", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17789", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17789/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17789/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17789/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17789") = 0 mkdir("./17790", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3959 ./strace-static-x86_64: Process 3959 attached [pid 3959] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3959] chdir("./17790") = 0 [pid 3959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3959] setpgid(0, 0) = 0 [pid 3959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3959] write(3, "1000", 4) = 4 [pid 3959] close(3) = 0 [pid 3959] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3959] write(1, "executing program\n", 18executing program ) = 18 [pid 3959] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3959] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3959] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3959] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3959] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3959] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3960 attached [pid 3960] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3960] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] <... clone3 resumed> => {parent_tid=[3960]}, 88) = 3960 [pid 3959] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3960] <... futex resumed>) = 0 [pid 3960] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3960] <... futex resumed>) = 0 [pid 3960] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3960] <... futex resumed>) = 0 [pid 3960] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3960] <... futex resumed>) = 0 [pid 3960] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3959] exit_group(0) = ? [pid 3960] <... futex resumed>) = ? [pid 3960] +++ exited with 0 +++ [pid 3959] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3959, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17790", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17790", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17790/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17790/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17790/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17790") = 0 mkdir("./17791", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3961 ./strace-static-x86_64: Process 3961 attached [pid 3961] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3961] chdir("./17791") = 0 [pid 3961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3961] setpgid(0, 0) = 0 [pid 3961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3961] write(3, "1000", 4) = 4 [pid 3961] close(3) = 0 [pid 3961] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3961] write(1, "executing program\n", 18executing program ) = 18 [pid 3961] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3961] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3961] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3961] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3961] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3961] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3961] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3962]}, 88) = 3962 [pid 3961] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3962 attached [pid 3962] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3962] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3961] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3962] <... futex resumed>) = 0 [pid 3962] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3962] <... futex resumed>) = 0 [pid 3962] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3962] <... futex resumed>) = 0 [pid 3962] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3961] exit_group(0) = ? [pid 3962] <... futex resumed>) = ? [pid 3962] +++ exited with 0 +++ [pid 3961] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3961, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17791", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17791", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17791/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17791/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17791/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17791") = 0 mkdir("./17792", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3963 ./strace-static-x86_64: Process 3963 attached [pid 3963] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3963] chdir("./17792") = 0 [pid 3963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3963] setpgid(0, 0) = 0 [pid 3963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3963] write(3, "1000", 4) = 4 [pid 3963] close(3) = 0 [pid 3963] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3963] write(1, "executing program\n", 18executing program ) = 18 [pid 3963] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3963] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3963] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3963] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3963] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3963] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3963] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3964 attached => {parent_tid=[3964]}, 88) = 3964 [pid 3964] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3964] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3963] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3964] <... futex resumed>) = 0 [pid 3963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3964] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3964] <... futex resumed>) = 0 [pid 3964] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3964] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3964] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 3963] <... futex resumed>) = 1 [pid 3964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3964] <... futex resumed>) = 0 [pid 3964] write(-1, "0x0000000000000001", 18 [pid 3963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3964] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3963] exit_group(0) = ? [pid 3964] <... futex resumed>) = ? [pid 3964] +++ exited with 0 +++ [pid 3963] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3963, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17792", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17792", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17792/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17792/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17792/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17792") = 0 mkdir("./17793", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3965 ./strace-static-x86_64: Process 3965 attached [pid 3965] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3965] chdir("./17793") = 0 [pid 3965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3965] setpgid(0, 0) = 0 [pid 3965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3965] write(3, "1000", 4) = 4 [pid 3965] close(3) = 0 [pid 3965] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3965] write(1, "executing program\n", 18executing program ) = 18 [pid 3965] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3965] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3965] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3965] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3965] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3966]}, 88) = 3966 [pid 3965] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3966 attached [pid 3966] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3966] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3966] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3965] <... futex resumed>) = 0 [pid 3965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3966] <... futex resumed>) = 1 [pid 3966] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3965] <... futex resumed>) = 0 [pid 3965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3966] <... futex resumed>) = 1 [pid 3966] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3965] <... futex resumed>) = 0 [pid 3965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3966] <... futex resumed>) = 1 [pid 3966] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3965] <... futex resumed>) = 0 [pid 3965] exit_group(0) = ? [pid 3966] <... futex resumed>) = ? [pid 3966] +++ exited with 0 +++ [pid 3965] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3965, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17793", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17793", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17793/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17793/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17793/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17793") = 0 mkdir("./17794", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3967 attached , child_tidptr=0x55558931b690) = 3967 [pid 3967] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3967] chdir("./17794") = 0 [pid 3967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3967] setpgid(0, 0) = 0 [pid 3967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3967] write(3, "1000", 4) = 4 [pid 3967] close(3) = 0 [pid 3967] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3967] write(1, "executing program\n", 18) = 18 [pid 3967] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3967] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3967] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3967] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3967] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3967] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3968 attached => {parent_tid=[3968]}, 88) = 3968 [pid 3967] rt_sigprocmask(SIG_SETMASK, [], [pid 3968] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3967] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3968] <... set_robust_list resumed>) = 0 [pid 3967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3968] rt_sigprocmask(SIG_SETMASK, [], [pid 3967] <... futex resumed>) = 0 [pid 3968] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3968] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3967] <... futex resumed>) = 0 [pid 3967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3968] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3967] <... futex resumed>) = 0 [pid 3968] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3968] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3967] <... futex resumed>) = 0 [pid 3967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3968] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3967] <... futex resumed>) = 0 [pid 3968] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3967] exit_group(0) = ? [pid 3968] <... futex resumed>) = ? [pid 3968] +++ exited with 0 +++ [pid 3967] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3967, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17794", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17794", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17794/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17794/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17794/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17794") = 0 mkdir("./17795", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3969 ./strace-static-x86_64: Process 3969 attached [pid 3969] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3969] chdir("./17795") = 0 [pid 3969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3969] setpgid(0, 0) = 0 [pid 3969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3969] write(3, "1000", 4) = 4 [pid 3969] close(3) = 0 [pid 3969] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3969] write(1, "executing program\n", 18executing program ) = 18 [pid 3969] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3969] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3969] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3969] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3969] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3969] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3970 attached [pid 3970] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3970] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3969] <... clone3 resumed> => {parent_tid=[3970]}, 88) = 3970 [pid 3969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3970] <... futex resumed>) = 0 [pid 3970] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3970] <... futex resumed>) = 0 [pid 3970] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3970] <... futex resumed>) = 0 [pid 3969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3970] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3970] <... futex resumed>) = 0 [pid 3970] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3969] exit_group(0) = ? [pid 3970] <... futex resumed>) = ? [pid 3970] +++ exited with 0 +++ [pid 3969] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3969, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17795", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17795", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17795/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17795/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17795/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17795") = 0 mkdir("./17796", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3971 ./strace-static-x86_64: Process 3971 attached [pid 3971] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3971] chdir("./17796") = 0 [pid 3971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3971] setpgid(0, 0) = 0 [pid 3971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3971] write(3, "1000", 4) = 4 [pid 3971] close(3) = 0 [pid 3971] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3971] write(1, "executing program\n", 18) = 18 [pid 3971] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3971] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3971] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3971] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3971] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3972]}, 88) = 3972 [pid 3971] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3972 attached [pid 3972] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3972] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3972] <... futex resumed>) = 1 [pid 3972] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3972] <... futex resumed>) = 1 [pid 3972] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3972] <... futex resumed>) = 1 [pid 3972] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] exit_group(0) = ? [pid 3972] <... futex resumed>) = ? [pid 3972] +++ exited with 0 +++ [pid 3971] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3971, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17796", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17796", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17796/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17796/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17796/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17796") = 0 mkdir("./17797", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3973 attached , child_tidptr=0x55558931b690) = 3973 [pid 3973] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3973] chdir("./17797") = 0 [pid 3973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3973] setpgid(0, 0) = 0 [pid 3973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3973] write(3, "1000", 4) = 4 [pid 3973] close(3) = 0 [pid 3973] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3973] write(1, "executing program\n", 18executing program ) = 18 [pid 3973] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3973] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3973] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3973] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3973] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3973] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3974 attached [pid 3974] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3974] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3974] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3973] <... clone3 resumed> => {parent_tid=[3974]}, 88) = 3974 [pid 3973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3974] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3974] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3974] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3974] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3973] exit_group(0) = ? [pid 3974] <... futex resumed>) = ? [pid 3974] +++ exited with 0 +++ [pid 3973] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3973, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17797", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17797", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17797/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17797/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17797/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17797") = 0 mkdir("./17798", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3975 ./strace-static-x86_64: Process 3975 attached [pid 3975] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3975] chdir("./17798") = 0 [pid 3975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3975] setpgid(0, 0) = 0 [pid 3975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3975] write(3, "1000", 4) = 4 [pid 3975] close(3) = 0 [pid 3975] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3975] write(1, "executing program\n", 18) = 18 [pid 3975] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3975] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3975] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3975] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3975] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3975] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3975] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3976]}, 88) = 3976 [pid 3975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3976 attached [pid 3976] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3976] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3975] <... futex resumed>) = 0 [pid 3975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3976] <... futex resumed>) = 1 [pid 3976] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3975] <... futex resumed>) = 0 [pid 3975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3976] <... futex resumed>) = 1 [pid 3976] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3975] <... futex resumed>) = 0 [pid 3975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3976] <... futex resumed>) = 1 [pid 3976] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3975] <... futex resumed>) = 0 [pid 3975] exit_group(0) = ? [pid 3976] <... futex resumed>) = ? [pid 3976] +++ exited with 0 +++ [pid 3975] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3975, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17798", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17798", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17798/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17798/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17798/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17798") = 0 mkdir("./17799", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3977 ./strace-static-x86_64: Process 3977 attached [pid 3977] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3977] chdir("./17799") = 0 [pid 3977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3977] setpgid(0, 0) = 0 [pid 3977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3977] write(3, "1000", 4) = 4 [pid 3977] close(3) = 0 [pid 3977] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3977] write(1, "executing program\n", 18executing program ) = 18 [pid 3977] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3977] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3977] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3977] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3978]}, 88) = 3978 [pid 3977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3978 attached [pid 3978] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3978] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3978] <... futex resumed>) = 1 [pid 3978] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3978] <... futex resumed>) = 1 [pid 3978] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3978] <... futex resumed>) = 1 [pid 3978] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] exit_group(0) = ? [pid 3978] <... futex resumed>) = ? [pid 3978] +++ exited with 0 +++ [pid 3977] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17799", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17799", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17799/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17799/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17799/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17799") = 0 mkdir("./17800", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3979 ./strace-static-x86_64: Process 3979 attached [pid 3979] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3979] chdir("./17800") = 0 [pid 3979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3979] setpgid(0, 0) = 0 [pid 3979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3979] write(3, "1000", 4) = 4 [pid 3979] close(3) = 0 [pid 3979] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3979] write(1, "executing program\n", 18executing program ) = 18 [pid 3979] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3979] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3979] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3979] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3979] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3979] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3980 attached => {parent_tid=[3980]}, 88) = 3980 [pid 3980] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3980] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3980] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3980] <... futex resumed>) = 0 [pid 3980] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3980] <... futex resumed>) = 0 [pid 3980] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3980] <... futex resumed>) = 0 [pid 3980] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3980] <... futex resumed>) = 0 [pid 3980] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3979] exit_group(0) = ? [pid 3980] <... futex resumed>) = ? [pid 3980] +++ exited with 0 +++ [pid 3979] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3979, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17800", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17800", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17800/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17800/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17800/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17800") = 0 mkdir("./17801", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3981 attached [pid 3981] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3981] chdir("./17801" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 3981 [pid 3981] <... chdir resumed>) = 0 [pid 3981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3981] setpgid(0, 0) = 0 [pid 3981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3981] write(3, "1000", 4) = 4 [pid 3981] close(3) = 0 [pid 3981] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3981] write(1, "executing program\n", 18) = 18 [pid 3981] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3981] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3981] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3981] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3981] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3981] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3981] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3982]}, 88) = 3982 [pid 3981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3982 attached [pid 3982] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3982] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3982] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3981] <... futex resumed>) = 0 [pid 3981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3982] <... futex resumed>) = 1 [pid 3982] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3981] <... futex resumed>) = 0 [pid 3981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3982] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3981] <... futex resumed>) = 0 [pid 3981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3982] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3981] <... futex resumed>) = 0 [pid 3981] exit_group(0 [pid 3982] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3981] <... exit_group resumed>) = ? [pid 3982] <... futex resumed>) = ? [pid 3982] +++ exited with 0 +++ [pid 3981] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3981, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17801", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17801", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17801/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17801/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17801/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17801") = 0 mkdir("./17802", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3983 attached , child_tidptr=0x55558931b690) = 3983 [pid 3983] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3983] chdir("./17802") = 0 [pid 3983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3983] setpgid(0, 0) = 0 [pid 3983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3983] write(3, "1000", 4) = 4 [pid 3983] close(3) = 0 [pid 3983] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3983] write(1, "executing program\n", 18executing program ) = 18 [pid 3983] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3983] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3983] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3983] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3983] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3983] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3984 attached => {parent_tid=[3984]}, 88) = 3984 [pid 3984] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3983] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3984] <... futex resumed>) = 0 [pid 3984] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3984] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3984] <... futex resumed>) = 0 [pid 3984] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3984] <... futex resumed>) = 0 [pid 3983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3984] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3983] <... futex resumed>) = 0 [pid 3983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3984] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3983] <... futex resumed>) = 0 [pid 3983] exit_group(0 [pid 3984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3983] <... exit_group resumed>) = ? [pid 3984] <... futex resumed>) = ? [pid 3984] +++ exited with 0 +++ [pid 3983] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3983, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17802", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17802", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17802/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17802/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17802/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17802") = 0 mkdir("./17803", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3985 ./strace-static-x86_64: Process 3985 attached [pid 3985] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3985] chdir("./17803") = 0 [pid 3985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3985] setpgid(0, 0) = 0 [pid 3985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3985] write(3, "1000", 4) = 4 [pid 3985] close(3) = 0 [pid 3985] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3985] write(1, "executing program\n", 18executing program ) = 18 [pid 3985] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3985] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3985] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3985] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3985] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3985] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3986]}, 88) = 3986 [pid 3985] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3986 attached [pid 3986] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3986] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3985] <... futex resumed>) = 0 [pid 3985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3986] <... futex resumed>) = 1 [pid 3986] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3985] <... futex resumed>) = 0 [pid 3985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3986] <... futex resumed>) = 1 [pid 3986] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3985] <... futex resumed>) = 0 [pid 3985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3986] <... futex resumed>) = 1 [pid 3986] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3985] <... futex resumed>) = 0 [pid 3985] exit_group(0) = ? [pid 3986] <... futex resumed>) = ? [pid 3986] +++ exited with 0 +++ [pid 3985] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3985, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17803", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17803", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17803/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17803/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17803/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17803") = 0 mkdir("./17804", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3987 ./strace-static-x86_64: Process 3987 attached [pid 3987] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3987] chdir("./17804") = 0 [pid 3987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3987] setpgid(0, 0) = 0 [pid 3987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3987] write(3, "1000", 4) = 4 [pid 3987] close(3) = 0 [pid 3987] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 3987] write(1, "executing program\n", 18) = 18 [pid 3987] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3987] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3987] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3987] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3987] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3987] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[3988]}, 88) = 3988 [pid 3987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3988 attached [pid 3988] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3988] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3987] <... futex resumed>) = 0 [pid 3987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3988] <... futex resumed>) = 1 [pid 3988] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3987] <... futex resumed>) = 0 [pid 3987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3988] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3987] <... futex resumed>) = 0 [pid 3987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3988] write(-1, "0x0000000000000001", 18 [pid 3987] <... futex resumed>) = 0 [pid 3987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3988] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 3988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3987] <... futex resumed>) = 0 [pid 3987] exit_group(0) = ? [pid 3988] +++ exited with 0 +++ [pid 3987] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3987, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17804", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17804", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17804/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17804/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17804/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17804") = 0 mkdir("./17805", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3989 attached , child_tidptr=0x55558931b690) = 3989 [pid 3989] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3989] chdir("./17805") = 0 [pid 3989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3989] setpgid(0, 0) = 0 [pid 3989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3989] write(3, "1000", 4) = 4 [pid 3989] close(3) = 0 [pid 3989] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3989] write(1, "executing program\n", 18executing program ) = 18 [pid 3989] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3989] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3989] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3989] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3990 attached => {parent_tid=[3990]}, 88) = 3990 [pid 3990] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3990] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3990] <... futex resumed>) = 0 [pid 3989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3990] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3989] <... futex resumed>) = 0 [pid 3989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3990] <... futex resumed>) = 0 [pid 3990] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3989] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3990] <... futex resumed>) = 0 [pid 3990] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3990] <... futex resumed>) = 0 [pid 3989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3990] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3989] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3989] exit_group(0) = ? [pid 3990] <... futex resumed>) = ? [pid 3990] +++ exited with 0 +++ [pid 3989] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3989, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17805", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17805", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17805/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17805/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17805/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17805") = 0 mkdir("./17806", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3991 ./strace-static-x86_64: Process 3991 attached [pid 3991] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3991] chdir("./17806") = 0 [pid 3991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3991] setpgid(0, 0) = 0 [pid 3991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3991] write(3, "1000", 4) = 4 [pid 3991] close(3) = 0 [pid 3991] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3991] write(1, "executing program\n", 18executing program ) = 18 [pid 3991] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3991] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3991] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3991] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3991] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3991] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3992 attached [pid 3992] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3991] <... clone3 resumed> => {parent_tid=[3992]}, 88) = 3992 [pid 3991] rt_sigprocmask(SIG_SETMASK, [], [pid 3992] <... set_robust_list resumed>) = 0 [pid 3991] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3992] rt_sigprocmask(SIG_SETMASK, [], [pid 3991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3992] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3991] <... futex resumed>) = 0 [pid 3992] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3992] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3991] <... futex resumed>) = 0 [pid 3991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3992] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3991] <... futex resumed>) = 0 [pid 3991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3992] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3991] <... futex resumed>) = 0 [pid 3991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3992] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3991] <... futex resumed>) = 0 [pid 3991] exit_group(0) = ? [pid 3992] +++ exited with 0 +++ [pid 3991] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3991, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17806", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17806", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17806/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17806/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17806/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17806") = 0 mkdir("./17807", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3993 ./strace-static-x86_64: Process 3993 attached [pid 3993] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3993] chdir("./17807") = 0 [pid 3993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3993] setpgid(0, 0) = 0 [pid 3993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3993] write(3, "1000", 4) = 4 [pid 3993] close(3) = 0 [pid 3993] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 3993] write(1, "executing program\n", 18) = 18 [pid 3993] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3993] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3993] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3993] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3993] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3993] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3994 attached => {parent_tid=[3994]}, 88) = 3994 [pid 3993] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3994] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3994] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3993] <... futex resumed>) = 0 [pid 3993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3994] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3993] <... futex resumed>) = 0 [pid 3993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3994] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3993] <... futex resumed>) = 0 [pid 3993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3994] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3993] <... futex resumed>) = 0 [pid 3993] exit_group(0) = ? [pid 3994] +++ exited with 0 +++ [pid 3993] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3993, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17807", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17807", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17807/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17807/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17807/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17807") = 0 mkdir("./17808", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3995 ./strace-static-x86_64: Process 3995 attached [pid 3995] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3995] chdir("./17808") = 0 [pid 3995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3995] setpgid(0, 0) = 0 [pid 3995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3995] write(3, "1000", 4) = 4 [pid 3995] close(3) = 0 [pid 3995] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3995] write(1, "executing program\n", 18executing program ) = 18 [pid 3995] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3995] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3995] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3995] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3995] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3996 attached => {parent_tid=[3996]}, 88) = 3996 [pid 3996] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 3996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3996] <... futex resumed>) = 0 [pid 3996] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3996] <... futex resumed>) = 0 [pid 3996] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3996] <... futex resumed>) = 0 [pid 3996] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3996] <... futex resumed>) = 0 [pid 3996] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3996] <... futex resumed>) = 0 [pid 3996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3995] exit_group(0) = ? [pid 3996] <... futex resumed>) = ? [pid 3996] +++ exited with 0 +++ [pid 3995] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3995, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17808", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17808", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17808/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17808/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17808/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17808") = 0 mkdir("./17809", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3997 ./strace-static-x86_64: Process 3997 attached [pid 3997] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3997] chdir("./17809") = 0 [pid 3997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3997] setpgid(0, 0) = 0 [pid 3997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3997] write(3, "1000", 4) = 4 [pid 3997] close(3) = 0 [pid 3997] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3997] write(1, "executing program\n", 18executing program ) = 18 [pid 3997] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3997] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3997] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3997] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3997] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 3998 attached => {parent_tid=[3998]}, 88) = 3998 [pid 3998] set_robust_list(0x7f0a3d8de9a0, 24 [pid 3997] rt_sigprocmask(SIG_SETMASK, [], [pid 3998] <... set_robust_list resumed>) = 0 [pid 3997] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3998] rt_sigprocmask(SIG_SETMASK, [], [pid 3997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3998] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 3997] <... futex resumed>) = 0 [pid 3998] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 3997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3998] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 3998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3997] <... futex resumed>) = 0 [pid 3997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3998] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3997] <... futex resumed>) = 0 [pid 3997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3998] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 3998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3997] <... futex resumed>) = 0 [pid 3997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3998] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 3998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3997] <... futex resumed>) = 0 [pid 3997] exit_group(0) = ? [pid 3998] +++ exited with 0 +++ [pid 3997] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3997, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17809", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17809", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17809/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17809/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17809/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17809") = 0 mkdir("./17810", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 3999 ./strace-static-x86_64: Process 3999 attached [pid 3999] set_robust_list(0x55558931b6a0, 24) = 0 [pid 3999] chdir("./17810") = 0 [pid 3999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3999] setpgid(0, 0) = 0 [pid 3999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3999] write(3, "1000", 4) = 4 [pid 3999] close(3) = 0 [pid 3999] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3999] write(1, "executing program\n", 18executing program ) = 18 [pid 3999] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3999] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 3999] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 3999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 3999] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3999] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 3999] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4000 attached => {parent_tid=[4000]}, 88) = 4000 [pid 4000] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4000] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3999] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 3999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4000] <... futex resumed>) = 0 [pid 4000] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4000] <... futex resumed>) = 0 [pid 4000] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 3999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 3999] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4000] <... futex resumed>) = 0 [pid 3999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4000] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 3999] <... futex resumed>) = 0 [pid 3999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4000] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3999] <... futex resumed>) = 0 [pid 3999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4000] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3999] <... futex resumed>) = 0 [pid 3999] exit_group(0 [pid 4000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3999] <... exit_group resumed>) = ? [pid 4000] <... futex resumed>) = ? [pid 4000] +++ exited with 0 +++ [pid 3999] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3999, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17810", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17810", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17810/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17810/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17810/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17810") = 0 mkdir("./17811", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4001 ./strace-static-x86_64: Process 4001 attached [pid 4001] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4001] chdir("./17811") = 0 [pid 4001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4001] setpgid(0, 0) = 0 [pid 4001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4001] write(3, "1000", 4) = 4 [pid 4001] close(3) = 0 [pid 4001] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4001] write(1, "executing program\n", 18) = 18 [pid 4001] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4001] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4001] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4001] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4001] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4002 attached => {parent_tid=[4002]}, 88) = 4002 [pid 4001] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4002] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4002] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4001] <... futex resumed>) = 0 [pid 4001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4002] <... futex resumed>) = 1 [pid 4002] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4001] <... futex resumed>) = 0 [pid 4001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4002] <... futex resumed>) = 1 [pid 4002] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4001] <... futex resumed>) = 0 [pid 4001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4002] <... futex resumed>) = 1 [pid 4002] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4001] <... futex resumed>) = 0 [pid 4001] exit_group(0) = ? [pid 4002] <... futex resumed>) = ? [pid 4002] +++ exited with 0 +++ [pid 4001] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4001, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17811", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17811", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17811/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17811/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17811/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17811") = 0 mkdir("./17812", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4003 ./strace-static-x86_64: Process 4003 attached [pid 4003] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4003] chdir("./17812") = 0 [pid 4003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4003] setpgid(0, 0) = 0 [pid 4003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4003] write(3, "1000", 4) = 4 [pid 4003] close(3) = 0 [pid 4003] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4003] write(1, "executing program\n", 18executing program ) = 18 [pid 4003] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4003] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4003] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4003] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4003] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4003] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4004 attached => {parent_tid=[4004]}, 88) = 4004 [pid 4004] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4004] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4003] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4004] <... futex resumed>) = 0 [pid 4004] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4004] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4004] <... futex resumed>) = 0 [pid 4004] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4004] <... futex resumed>) = 0 [pid 4003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4004] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4003] <... futex resumed>) = 0 [pid 4003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4004] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4003] <... futex resumed>) = 0 [pid 4003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] write(-1, "0x0000000000000001", 18 [pid 4003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4004] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4003] <... futex resumed>) = 0 [pid 4003] exit_group(0) = ? [pid 4004] +++ exited with 0 +++ [pid 4003] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4003, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17812", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17812", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17812/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17812/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17812/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17812") = 0 mkdir("./17813", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4005 ./strace-static-x86_64: Process 4005 attached [pid 4005] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4005] chdir("./17813") = 0 [pid 4005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4005] setpgid(0, 0) = 0 [pid 4005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4005] write(3, "1000", 4) = 4 [pid 4005] close(3) = 0 [pid 4005] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4005] write(1, "executing program\n", 18executing program ) = 18 [pid 4005] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4005] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4005] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4005] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4005] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4005] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4006 attached => {parent_tid=[4006]}, 88) = 4006 [pid 4006] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4006] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4005] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4006] <... futex resumed>) = 0 [pid 4006] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4005] <... futex resumed>) = 1 [pid 4005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4006] <... futex resumed>) = 0 [pid 4006] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4006] <... futex resumed>) = 0 [pid 4006] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4006] <... futex resumed>) = 0 [pid 4006] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4005] exit_group(0) = ? [pid 4006] <... futex resumed>) = ? [pid 4006] +++ exited with 0 +++ [pid 4005] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4005, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17813", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17813", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17813/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17813/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17813/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17813") = 0 mkdir("./17814", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4007 ./strace-static-x86_64: Process 4007 attached [pid 4007] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4007] chdir("./17814") = 0 [pid 4007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4007] setpgid(0, 0) = 0 [pid 4007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4007] write(3, "1000", 4) = 4 [pid 4007] close(3) = 0 [pid 4007] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4007] write(1, "executing program\n", 18executing program ) = 18 [pid 4007] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4007] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4007] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4007] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4007] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4008]}, 88) = 4008 ./strace-static-x86_64: Process 4008 attached [pid 4008] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4008] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4008] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4007] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4008] <... futex resumed>) = 0 [pid 4008] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4007] <... futex resumed>) = 0 [pid 4007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4007] <... futex resumed>) = 0 [pid 4007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4007] <... futex resumed>) = 0 [pid 4007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4007] <... futex resumed>) = 0 [pid 4007] exit_group(0) = ? [pid 4008] +++ exited with 0 +++ [pid 4007] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4007, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17814", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17814", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17814/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17814/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17814/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17814") = 0 mkdir("./17815", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4009 ./strace-static-x86_64: Process 4009 attached [pid 4009] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4009] chdir("./17815") = 0 [pid 4009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4009] setpgid(0, 0) = 0 [pid 4009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4009] write(3, "1000", 4) = 4 [pid 4009] close(3) = 0 [pid 4009] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4009] write(1, "executing program\n", 18) = 18 [pid 4009] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4009] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4009] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4009] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4009] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4009] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4010]}, 88) = 4010 [pid 4009] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4010 attached [pid 4010] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4010] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4010] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4009] <... futex resumed>) = 0 [pid 4009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4010] <... futex resumed>) = 1 [pid 4010] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4009] <... futex resumed>) = 0 [pid 4009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4010] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4009] <... futex resumed>) = 0 [pid 4009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4010] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4009] <... futex resumed>) = 0 [pid 4009] exit_group(0) = ? [pid 4010] +++ exited with 0 +++ [pid 4009] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4009, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17815", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17815", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17815/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17815/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17815/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17815") = 0 mkdir("./17816", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4011 attached , child_tidptr=0x55558931b690) = 4011 [pid 4011] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4011] chdir("./17816") = 0 [pid 4011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4011] setpgid(0, 0) = 0 [pid 4011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4011] write(3, "1000", 4) = 4 [pid 4011] close(3) = 0 [pid 4011] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4011] write(1, "executing program\n", 18executing program ) = 18 [pid 4011] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4011] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4011] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4011] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4011] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4011] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4011] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4012 attached => {parent_tid=[4012]}, 88) = 4012 [pid 4012] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4012] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4012] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4011] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4012] <... futex resumed>) = 0 [pid 4012] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4012] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4012] <... futex resumed>) = 0 [pid 4012] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4012] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4012] <... futex resumed>) = 0 [pid 4012] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4012] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4012] <... futex resumed>) = 0 [pid 4011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4012] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4012] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4011] <... futex resumed>) = 0 [pid 4011] exit_group(0) = ? [pid 4012] <... futex resumed>) = ? [pid 4012] +++ exited with 0 +++ [pid 4011] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4011, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17816", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17816", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17816/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17816/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17816/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17816") = 0 mkdir("./17817", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4013 ./strace-static-x86_64: Process 4013 attached [pid 4013] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4013] chdir("./17817") = 0 [pid 4013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4013] setpgid(0, 0) = 0 [pid 4013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4013] write(3, "1000", 4) = 4 [pid 4013] close(3) = 0 [pid 4013] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4013] write(1, "executing program\n", 18executing program ) = 18 [pid 4013] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4013] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4013] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4013] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4013] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4014]}, 88) = 4014 ./strace-static-x86_64: Process 4014 attached [pid 4014] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4014] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4014] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4013] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4014] <... futex resumed>) = 0 [pid 4014] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4014] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4013] <... futex resumed>) = 0 [pid 4013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4014] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4013] <... futex resumed>) = 0 [pid 4013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4014] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4013] <... futex resumed>) = 0 [pid 4013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4014] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4013] <... futex resumed>) = 0 [pid 4013] exit_group(0) = ? [pid 4014] +++ exited with 0 +++ [pid 4013] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4013, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17817", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17817", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17817/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17817/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17817/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17817") = 0 mkdir("./17818", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4015 ./strace-static-x86_64: Process 4015 attached [pid 4015] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4015] chdir("./17818") = 0 [pid 4015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4015] setpgid(0, 0) = 0 [pid 4015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4015] write(3, "1000", 4) = 4 [pid 4015] close(3) = 0 [pid 4015] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4015] write(1, "executing program\n", 18) = 18 [pid 4015] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4015] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4015] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4015] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4015] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4015] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4016 attached => {parent_tid=[4016]}, 88) = 4016 [pid 4015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4016] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4016] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4016] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4015] <... futex resumed>) = 0 [pid 4015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4016] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4015] <... futex resumed>) = 0 [pid 4015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4016] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4015] <... futex resumed>) = 0 [pid 4015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4016] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4015] <... futex resumed>) = 0 [pid 4015] exit_group(0) = ? [pid 4016] +++ exited with 0 +++ [pid 4015] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4015, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17818", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17818", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17818/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17818/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17818/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17818") = 0 mkdir("./17819", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4018 attached , child_tidptr=0x55558931b690) = 4018 [pid 4018] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4018] chdir("./17819") = 0 [pid 4018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4018] setpgid(0, 0) = 0 [pid 4018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4018] write(3, "1000", 4) = 4 [pid 4018] close(3) = 0 [pid 4018] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4018] write(1, "executing program\n", 18executing program ) = 18 [pid 4018] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4018] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4018] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4018] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4018] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4018] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4019 attached => {parent_tid=[4019]}, 88) = 4019 [pid 4018] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4018] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4018] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4019] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4019] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4019] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4018] <... futex resumed>) = 0 [pid 4018] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4018] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4019] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4019] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4018] <... futex resumed>) = 0 [pid 4018] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4018] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4019] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4019] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4018] <... futex resumed>) = 0 [pid 4018] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4018] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4019] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4019] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4018] <... futex resumed>) = 0 [pid 4018] exit_group(0) = ? [pid 4019] +++ exited with 0 +++ [pid 4018] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4018, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17819", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17819", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17819/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17819/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17819/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17819") = 0 mkdir("./17820", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4020 ./strace-static-x86_64: Process 4020 attached [pid 4020] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4020] chdir("./17820") = 0 [pid 4020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4020] setpgid(0, 0) = 0 [pid 4020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4020] write(3, "1000", 4) = 4 [pid 4020] close(3) = 0 [pid 4020] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4020] write(1, "executing program\n", 18) = 18 [pid 4020] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4020] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4020] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4020] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4021 attached => {parent_tid=[4021]}, 88) = 4021 [pid 4020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4021] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4021] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4021] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4020] <... futex resumed>) = 0 [pid 4020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4021] <... futex resumed>) = 1 [pid 4021] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4020] <... futex resumed>) = 0 [pid 4020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4021] <... futex resumed>) = 1 [pid 4021] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4020] <... futex resumed>) = 0 [pid 4020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4021] <... futex resumed>) = 1 [pid 4021] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4020] <... futex resumed>) = 0 [pid 4020] exit_group(0) = ? [pid 4021] <... futex resumed>) = ? [pid 4021] +++ exited with 0 +++ [pid 4020] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4020, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17820", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17820", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17820/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17820/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17820/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17820") = 0 mkdir("./17821", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4022 attached , child_tidptr=0x55558931b690) = 4022 [pid 4022] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4022] chdir("./17821") = 0 [pid 4022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4022] setpgid(0, 0) = 0 [pid 4022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4022] write(3, "1000", 4) = 4 [pid 4022] close(3) = 0 [pid 4022] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4022] write(1, "executing program\n", 18) = 18 [pid 4022] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4022] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4022] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4022] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4023 attached [pid 4023] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4023] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4022] <... clone3 resumed> => {parent_tid=[4023]}, 88) = 4023 [pid 4022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4023] <... futex resumed>) = 0 [pid 4023] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4023] <... futex resumed>) = 0 [pid 4023] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4023] <... futex resumed>) = 0 [pid 4022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4023] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4022] <... futex resumed>) = 0 [pid 4022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4023] <... futex resumed>) = 1 [pid 4022] <... futex resumed>) = 0 [pid 4023] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4023] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4022] <... futex resumed>) = 0 [pid 4023] <... futex resumed>) = 1 [pid 4022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4023] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4022] <... futex resumed>) = 0 [pid 4022] exit_group(0) = ? [pid 4023] +++ exited with 0 +++ [pid 4022] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17821", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17821", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17821/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17821/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17821/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17821") = 0 mkdir("./17822", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4024 ./strace-static-x86_64: Process 4024 attached [pid 4024] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4024] chdir("./17822") = 0 [pid 4024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4024] setpgid(0, 0) = 0 [pid 4024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4024] write(3, "1000", 4) = 4 [pid 4024] close(3) = 0 [pid 4024] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4024] write(1, "executing program\n", 18executing program ) = 18 [pid 4024] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4024] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4024] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4025 attached => {parent_tid=[4025]}, 88) = 4025 [pid 4024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4025] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4025] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4025] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4024] <... futex resumed>) = 0 [pid 4024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4025] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4024] <... futex resumed>) = 0 [pid 4024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4025] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4024] <... futex resumed>) = 0 [pid 4024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4025] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4024] <... futex resumed>) = 0 [pid 4024] exit_group(0) = ? [pid 4025] +++ exited with 0 +++ [pid 4024] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4024, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17822", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17822", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17822/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17822/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17822/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17822") = 0 mkdir("./17823", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4026 ./strace-static-x86_64: Process 4026 attached [pid 4026] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4026] chdir("./17823") = 0 [pid 4026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4026] setpgid(0, 0) = 0 [pid 4026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4026] write(3, "1000", 4) = 4 [pid 4026] close(3) = 0 [pid 4026] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4026] write(1, "executing program\n", 18executing program ) = 18 [pid 4026] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4026] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4026] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4026] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4026] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4026] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4027 attached => {parent_tid=[4027]}, 88) = 4027 [pid 4027] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4027] <... futex resumed>) = 0 [pid 4027] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4027] <... futex resumed>) = 0 [pid 4027] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4027] <... futex resumed>) = 0 [pid 4027] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4027] <... futex resumed>) = 0 [pid 4027] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4026] exit_group(0) = ? [pid 4027] <... futex resumed>) = ? [pid 4027] +++ exited with 0 +++ [pid 4026] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4026, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17823", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17823", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17823/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17823/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17823/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17823") = 0 mkdir("./17824", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4028 ./strace-static-x86_64: Process 4028 attached [pid 4028] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4028] chdir("./17824") = 0 [pid 4028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4028] setpgid(0, 0) = 0 [pid 4028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4028] write(3, "1000", 4) = 4 [pid 4028] close(3) = 0 [pid 4028] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4028] write(1, "executing program\n", 18executing program ) = 18 [pid 4028] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4028] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4028] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4028] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4028] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4028] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4029 attached [pid 4029] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4029] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4029] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4028] <... clone3 resumed> => {parent_tid=[4029]}, 88) = 4029 [pid 4028] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4029] <... futex resumed>) = 0 [pid 4029] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4029] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4029] <... futex resumed>) = 0 [pid 4029] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4029] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4029] <... futex resumed>) = 0 [pid 4029] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4029] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4029] <... futex resumed>) = 0 [pid 4029] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4029] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4028] exit_group(0) = ? [pid 4029] <... futex resumed>) = ? [pid 4029] +++ exited with 0 +++ [pid 4028] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4028, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17824", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17824", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17824/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17824/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17824/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17824") = 0 mkdir("./17825", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4030 ./strace-static-x86_64: Process 4030 attached [pid 4030] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4030] chdir("./17825") = 0 [pid 4030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4030] setpgid(0, 0) = 0 [pid 4030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4030] write(3, "1000", 4) = 4 [pid 4030] close(3) = 0 [pid 4030] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4030] write(1, "executing program\n", 18) = 18 [pid 4030] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4030] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4030] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4030] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4030] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4030] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4031 attached [pid 4031] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4030] <... clone3 resumed> => {parent_tid=[4031]}, 88) = 4031 [pid 4030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4031] <... set_robust_list resumed>) = 0 [pid 4031] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4031] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4030] <... futex resumed>) = 0 [pid 4030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4031] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4030] <... futex resumed>) = 0 [pid 4030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4031] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4030] <... futex resumed>) = 0 [pid 4030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4031] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4030] <... futex resumed>) = 0 [pid 4030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4031] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4030] <... futex resumed>) = 0 [pid 4030] exit_group(0) = ? [pid 4031] +++ exited with 0 +++ [pid 4030] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4030, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17825", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17825", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17825/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17825/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17825/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17825") = 0 mkdir("./17826", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4032 ./strace-static-x86_64: Process 4032 attached [pid 4032] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4032] chdir("./17826") = 0 [pid 4032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4032] setpgid(0, 0) = 0 [pid 4032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4032] write(3, "1000", 4) = 4 [pid 4032] close(3) = 0 [pid 4032] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4032] write(1, "executing program\n", 18executing program ) = 18 [pid 4032] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4032] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4032] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4033 attached => {parent_tid=[4033]}, 88) = 4033 [pid 4033] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4033] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4033] <... futex resumed>) = 0 [pid 4032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4033] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4033] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4033] <... futex resumed>) = 0 [pid 4033] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4033] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4033] <... futex resumed>) = 0 [pid 4032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4033] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4033] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4033] <... futex resumed>) = 0 [pid 4033] write(-1, "0x0000000000000001", 18 [pid 4032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4033] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4033] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4032] exit_group(0) = ? [pid 4033] <... futex resumed>) = ? [pid 4033] +++ exited with 0 +++ [pid 4032] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4032, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17826", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17826", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17826/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17826/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17826/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17826") = 0 mkdir("./17827", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4034 ./strace-static-x86_64: Process 4034 attached [pid 4034] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4034] chdir("./17827") = 0 [pid 4034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4034] setpgid(0, 0) = 0 [pid 4034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4034] write(3, "1000", 4) = 4 [pid 4034] close(3) = 0 [pid 4034] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4034] write(1, "executing program\n", 18executing program ) = 18 [pid 4034] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4034] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4034] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4035 attached => {parent_tid=[4035]}, 88) = 4035 [pid 4035] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4035] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4035] <... futex resumed>) = 0 [pid 4035] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4035] <... futex resumed>) = 0 [pid 4035] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4035] <... futex resumed>) = 0 [pid 4035] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4035] <... futex resumed>) = 0 [pid 4035] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4034] exit_group(0) = ? [pid 4035] <... futex resumed>) = ? [pid 4035] +++ exited with 0 +++ [pid 4034] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17827", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17827", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17827/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17827/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17827/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17827") = 0 mkdir("./17828", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4036 ./strace-static-x86_64: Process 4036 attached [pid 4036] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4036] chdir("./17828") = 0 [pid 4036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4036] setpgid(0, 0) = 0 [pid 4036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4036] write(3, "1000", 4) = 4 [pid 4036] close(3) = 0 [pid 4036] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4036] write(1, "executing program\n", 18) = 18 [pid 4036] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4036] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4036] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4037 attached => {parent_tid=[4037]}, 88) = 4037 [pid 4036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4037] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4037] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4037] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4036] <... futex resumed>) = 0 [pid 4036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4037] <... futex resumed>) = 1 [pid 4037] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4036] <... futex resumed>) = 0 [pid 4036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4037] <... futex resumed>) = 1 [pid 4037] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4036] <... futex resumed>) = 0 [pid 4036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4037] <... futex resumed>) = 1 [pid 4037] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4036] <... futex resumed>) = 0 [pid 4036] exit_group(0) = ? [pid 4037] <... futex resumed>) = ? [pid 4037] +++ exited with 0 +++ [pid 4036] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4036, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17828", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17828", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17828/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17828/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17828/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17828") = 0 mkdir("./17829", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4038 ./strace-static-x86_64: Process 4038 attached [pid 4038] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4038] chdir("./17829") = 0 [pid 4038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4038] setpgid(0, 0) = 0 [pid 4038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4038] write(3, "1000", 4) = 4 [pid 4038] close(3) = 0 [pid 4038] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4038] write(1, "executing program\n", 18) = 18 [pid 4038] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4038] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4038] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4038] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4038] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4039 attached => {parent_tid=[4039]}, 88) = 4039 [pid 4038] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4039] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4039] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4039] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4038] <... futex resumed>) = 0 [pid 4038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4039] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4038] <... futex resumed>) = 0 [pid 4038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4039] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4038] <... futex resumed>) = 0 [pid 4038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4039] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4038] <... futex resumed>) = 0 [pid 4038] exit_group(0) = ? [pid 4039] +++ exited with 0 +++ [pid 4038] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17829", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17829", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17829/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17829/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17829/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17829") = 0 mkdir("./17830", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4040 attached , child_tidptr=0x55558931b690) = 4040 [pid 4040] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4040] chdir("./17830") = 0 [pid 4040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4040] setpgid(0, 0) = 0 [pid 4040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4040] write(3, "1000", 4) = 4 [pid 4040] close(3) = 0 [pid 4040] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4040] write(1, "executing program\n", 18executing program ) = 18 [pid 4040] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4040] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4040] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4040] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4041 attached => {parent_tid=[4041]}, 88) = 4041 [pid 4041] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4041] <... futex resumed>) = 0 [pid 4041] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4041] <... futex resumed>) = 0 [pid 4041] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4041] <... futex resumed>) = 0 [pid 4041] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4041] <... futex resumed>) = 0 [pid 4040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4041] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4040] <... futex resumed>) = 0 [pid 4040] exit_group(0) = ? [pid 4041] <... futex resumed>) = ? [pid 4041] +++ exited with 0 +++ [pid 4040] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4040, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17830", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17830", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17830/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17830/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17830/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17830") = 0 mkdir("./17831", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4042 ./strace-static-x86_64: Process 4042 attached [pid 4042] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4042] chdir("./17831") = 0 [pid 4042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4042] setpgid(0, 0) = 0 [pid 4042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4042] write(3, "1000", 4) = 4 [pid 4042] close(3) = 0 [pid 4042] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4042] write(1, "executing program\n", 18) = 18 [pid 4042] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4042] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4042] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4042] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4042] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4043 attached => {parent_tid=[4043]}, 88) = 4043 [pid 4042] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4043] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4043] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4043] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4042] <... futex resumed>) = 0 [pid 4042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4043] <... futex resumed>) = 1 [pid 4043] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4042] <... futex resumed>) = 0 [pid 4042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4043] <... futex resumed>) = 1 [pid 4043] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4042] <... futex resumed>) = 0 [pid 4042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4043] <... futex resumed>) = 1 [pid 4043] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4042] <... futex resumed>) = 0 [pid 4042] exit_group(0) = ? [pid 4043] <... futex resumed>) = ? [pid 4043] +++ exited with 0 +++ [pid 4042] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4042, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17831", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17831", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17831/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17831/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17831/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17831") = 0 mkdir("./17832", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4044 ./strace-static-x86_64: Process 4044 attached [pid 4044] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4044] chdir("./17832") = 0 [pid 4044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4044] setpgid(0, 0) = 0 [pid 4044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4044] write(3, "1000", 4) = 4 [pid 4044] close(3) = 0 [pid 4044] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4044] write(1, "executing program\n", 18executing program ) = 18 [pid 4044] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4044] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4044] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4044] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4044] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4045 attached => {parent_tid=[4045]}, 88) = 4045 [pid 4045] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4045] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4044] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4045] <... futex resumed>) = 0 [pid 4045] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4045] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4045] <... futex resumed>) = 0 [pid 4044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4045] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4044] <... futex resumed>) = 0 [pid 4045] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4045] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4044] <... futex resumed>) = 0 [pid 4045] <... futex resumed>) = 0 [pid 4044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4045] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4044] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4045] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4044] <... futex resumed>) = 0 [pid 4045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4045] <... futex resumed>) = 0 [pid 4044] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4045] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4044] exit_group(0) = ? [pid 4045] <... futex resumed>) = ? [pid 4045] +++ exited with 0 +++ [pid 4044] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4044, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17832", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17832", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17832/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17832/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17832/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17832") = 0 mkdir("./17833", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4046 ./strace-static-x86_64: Process 4046 attached [pid 4046] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4046] chdir("./17833") = 0 [pid 4046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4046] setpgid(0, 0) = 0 [pid 4046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4046] write(3, "1000", 4) = 4 [pid 4046] close(3) = 0 [pid 4046] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4046] write(1, "executing program\n", 18) = 18 [pid 4046] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4046] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4046] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4046] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4047 attached => {parent_tid=[4047]}, 88) = 4047 [pid 4046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4047] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4047] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4047] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4047] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4047] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4047] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4047] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4046] <... futex resumed>) = 0 [pid 4046] exit_group(0) = ? [pid 4047] +++ exited with 0 +++ [pid 4046] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4046, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17833", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17833", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17833/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17833/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17833/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17833") = 0 mkdir("./17834", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4048 ./strace-static-x86_64: Process 4048 attached [pid 4048] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4048] chdir("./17834") = 0 [pid 4048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4048] setpgid(0, 0) = 0 [pid 4048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4048] write(3, "1000", 4) = 4 [pid 4048] close(3) = 0 [pid 4048] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4048] write(1, "executing program\n", 18executing program ) = 18 [pid 4048] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4048] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4048] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4048] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4048] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4048] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4049 attached => {parent_tid=[4049]}, 88) = 4049 [pid 4049] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4049] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4048] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4049] <... futex resumed>) = 0 [pid 4049] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4048] <... futex resumed>) = 0 [pid 4048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4049] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4048] <... futex resumed>) = 0 [pid 4048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4049] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4048] <... futex resumed>) = 0 [pid 4048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4049] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4048] <... futex resumed>) = 0 [pid 4048] exit_group(0) = ? [pid 4049] +++ exited with 0 +++ [pid 4048] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4048, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17834", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17834", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17834/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17834/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17834/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17834") = 0 mkdir("./17835", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4050 attached , child_tidptr=0x55558931b690) = 4050 [pid 4050] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4050] chdir("./17835") = 0 [pid 4050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4050] setpgid(0, 0) = 0 [pid 4050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4050] write(3, "1000", 4) = 4 [pid 4050] close(3) = 0 [pid 4050] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4050] write(1, "executing program\n", 18) = 18 [pid 4050] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4050] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4050] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4050] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4051 attached [pid 4051] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4050] <... clone3 resumed> => {parent_tid=[4051]}, 88) = 4051 [pid 4050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4051] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4050] <... futex resumed>) = 0 [pid 4050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4051] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4050] <... futex resumed>) = 0 [pid 4050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4051] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4050] <... futex resumed>) = 0 [pid 4050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4051] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4051] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4050] <... futex resumed>) = 0 [pid 4050] exit_group(0) = ? [pid 4051] <... futex resumed>) = ? [pid 4051] +++ exited with 0 +++ [pid 4050] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4050, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17835", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17835", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17835/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17835/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17835/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17835") = 0 mkdir("./17836", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4052 ./strace-static-x86_64: Process 4052 attached [pid 4052] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4052] chdir("./17836") = 0 [pid 4052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4052] setpgid(0, 0) = 0 [pid 4052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4052] write(3, "1000", 4) = 4 [pid 4052] close(3) = 0 [pid 4052] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4052] write(1, "executing program\n", 18executing program ) = 18 [pid 4052] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4052] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4052] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4052] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4053 attached => {parent_tid=[4053]}, 88) = 4053 [pid 4053] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4053] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4053] <... futex resumed>) = 0 [pid 4053] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4053] <... futex resumed>) = 0 [pid 4053] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4052] <... futex resumed>) = 0 [pid 4052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4052] <... futex resumed>) = 0 [pid 4052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4052] <... futex resumed>) = 0 [pid 4053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4052] exit_group(0) = ? [pid 4053] <... futex resumed>) = 230 [pid 4053] +++ exited with 0 +++ [pid 4052] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17836", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17836", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17836/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17836/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17836/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17836") = 0 mkdir("./17837", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4054 attached , child_tidptr=0x55558931b690) = 4054 [pid 4054] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4054] chdir("./17837") = 0 [pid 4054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4054] setpgid(0, 0) = 0 [pid 4054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4054] write(3, "1000", 4) = 4 [pid 4054] close(3) = 0 [pid 4054] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4054] write(1, "executing program\n", 18) = 18 [pid 4054] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4054] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4054] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4054] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4054] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4055 attached [pid 4055] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4054] <... clone3 resumed> => {parent_tid=[4055]}, 88) = 4055 [pid 4054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4055] <... set_robust_list resumed>) = 0 [pid 4054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4055] rt_sigprocmask(SIG_SETMASK, [], [pid 4054] <... futex resumed>) = 0 [pid 4055] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4055] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4055] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4054] <... futex resumed>) = 0 [pid 4054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4055] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4054] <... futex resumed>) = 0 [pid 4054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4055] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4054] <... futex resumed>) = 0 [pid 4054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4055] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4054] <... futex resumed>) = 0 [pid 4054] exit_group(0) = ? [pid 4055] +++ exited with 0 +++ [pid 4054] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4054, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17837", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17837", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17837/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17837/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17837/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17837") = 0 mkdir("./17838", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4056 ./strace-static-x86_64: Process 4056 attached [pid 4056] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4056] chdir("./17838") = 0 [pid 4056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4056] setpgid(0, 0) = 0 [pid 4056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4056] write(3, "1000", 4) = 4 [pid 4056] close(3) = 0 [pid 4056] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4056] write(1, "executing program\n", 18) = 18 [pid 4056] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4056] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4056] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4056] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4056] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4056] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4057 attached => {parent_tid=[4057]}, 88) = 4057 [pid 4057] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4057] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4057] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4056] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4057] <... futex resumed>) = 0 [pid 4057] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4057] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4057] <... futex resumed>) = 0 [pid 4057] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4057] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4057] <... futex resumed>) = 0 [pid 4057] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4057] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4057] <... futex resumed>) = 0 [pid 4057] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4057] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4056] exit_group(0) = ? [pid 4057] <... futex resumed>) = ? [pid 4057] +++ exited with 0 +++ [pid 4056] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4056, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17838", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17838", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17838/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17838/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17838/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17838") = 0 mkdir("./17839", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4058 attached [pid 4058] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4058] chdir("./17839" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 4058 [pid 4058] <... chdir resumed>) = 0 [pid 4058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4058] setpgid(0, 0) = 0 [pid 4058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4058] write(3, "1000", 4) = 4 [pid 4058] close(3) = 0 [pid 4058] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4058] write(1, "executing program\n", 18) = 18 [pid 4058] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4058] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4058] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4058] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4059 attached => {parent_tid=[4059]}, 88) = 4059 [pid 4059] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4058] rt_sigprocmask(SIG_SETMASK, [], [pid 4059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4059] <... futex resumed>) = 0 [pid 4059] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4059] <... futex resumed>) = 0 [pid 4059] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4059] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4059] <... futex resumed>) = 0 [pid 4059] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4059] <... futex resumed>) = 0 [pid 4059] write(-1, "0x0000000000000001", 18 [pid 4058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4059] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4058] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4058] exit_group(0) = ? [pid 4059] <... futex resumed>) = ? [pid 4059] +++ exited with 0 +++ [pid 4058] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4058, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17839", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17839", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17839/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17839/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17839/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17839") = 0 mkdir("./17840", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4060 attached , child_tidptr=0x55558931b690) = 4060 [pid 4060] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4060] chdir("./17840") = 0 [pid 4060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4060] setpgid(0, 0) = 0 [pid 4060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4060] write(3, "1000", 4) = 4 [pid 4060] close(3) = 0 [pid 4060] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4060] write(1, "executing program\n", 18) = 18 [pid 4060] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4060] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4060] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4060] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4060] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4060] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4061]}, 88) = 4061 [pid 4060] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4061 attached [pid 4061] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4061] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4061] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4060] <... futex resumed>) = 0 [pid 4060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4061] <... futex resumed>) = 1 [pid 4061] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4060] <... futex resumed>) = 0 [pid 4060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4061] <... futex resumed>) = 1 [pid 4061] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4060] <... futex resumed>) = 0 [pid 4060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4061] <... futex resumed>) = 1 [pid 4061] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4060] <... futex resumed>) = 0 [pid 4060] exit_group(0) = ? [pid 4061] <... futex resumed>) = ? [pid 4061] +++ exited with 0 +++ [pid 4060] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4060, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17840", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17840", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17840/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17840/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17840/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17840") = 0 mkdir("./17841", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4062 ./strace-static-x86_64: Process 4062 attached [pid 4062] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4062] chdir("./17841") = 0 [pid 4062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4062] setpgid(0, 0) = 0 [pid 4062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4062] write(3, "1000", 4) = 4 [pid 4062] close(3) = 0 [pid 4062] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4062] write(1, "executing program\n", 18executing program ) = 18 [pid 4062] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4062] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4062] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4062] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4062] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4062] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4063 attached => {parent_tid=[4063]}, 88) = 4063 [pid 4063] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4063] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4062] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4063] <... futex resumed>) = 0 [pid 4062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4063] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4062] <... futex resumed>) = 0 [pid 4062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4063] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4062] <... futex resumed>) = 0 [pid 4062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4063] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4062] <... futex resumed>) = 0 [pid 4062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4063] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4062] <... futex resumed>) = 0 [pid 4062] exit_group(0) = ? [pid 4063] +++ exited with 0 +++ [pid 4062] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4062, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17841", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17841", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17841/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17841/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17841/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17841") = 0 mkdir("./17842", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4064 ./strace-static-x86_64: Process 4064 attached [pid 4064] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4064] chdir("./17842") = 0 [pid 4064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4064] setpgid(0, 0) = 0 [pid 4064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4064] write(3, "1000", 4) = 4 [pid 4064] close(3) = 0 [pid 4064] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4064] write(1, "executing program\n", 18) = 18 [pid 4064] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4064] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4064] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4064] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4064] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4065 attached [pid 4065] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4064] <... clone3 resumed> => {parent_tid=[4065]}, 88) = 4065 [pid 4065] <... set_robust_list resumed>) = 0 [pid 4064] rt_sigprocmask(SIG_SETMASK, [], [pid 4065] rt_sigprocmask(SIG_SETMASK, [], [pid 4064] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4065] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4064] <... futex resumed>) = 0 [pid 4064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4064] <... futex resumed>) = 0 [pid 4064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4064] <... futex resumed>) = 0 [pid 4064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4064] <... futex resumed>) = 0 [pid 4064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4064] <... futex resumed>) = 0 [pid 4064] exit_group(0) = ? [pid 4065] +++ exited with 0 +++ [pid 4064] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4064, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17842", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17842", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17842/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17842/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17842/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17842") = 0 mkdir("./17843", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4066 ./strace-static-x86_64: Process 4066 attached [pid 4066] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4066] chdir("./17843") = 0 [pid 4066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4066] setpgid(0, 0) = 0 [pid 4066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4066] write(3, "1000", 4) = 4 [pid 4066] close(3) = 0 [pid 4066] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4066] write(1, "executing program\n", 18executing program ) = 18 [pid 4066] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4066] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4066] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4066] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4066] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4066] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4067]}, 88) = 4067 ./strace-static-x86_64: Process 4067 attached [pid 4066] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4067] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4067] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4066] <... futex resumed>) = 0 [pid 4066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4067] <... futex resumed>) = 1 [pid 4067] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4066] <... futex resumed>) = 0 [pid 4066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4067] <... futex resumed>) = 1 [pid 4067] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4066] <... futex resumed>) = 0 [pid 4066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4067] <... futex resumed>) = 1 [pid 4067] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4066] <... futex resumed>) = 0 [pid 4066] exit_group(0) = ? [pid 4067] <... futex resumed>) = ? [pid 4067] +++ exited with 0 +++ [pid 4066] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4066, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17843", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17843", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17843/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17843/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17843/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17843") = 0 mkdir("./17844", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4068 ./strace-static-x86_64: Process 4068 attached [pid 4068] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4068] chdir("./17844") = 0 [pid 4068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4068] setpgid(0, 0) = 0 [pid 4068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4068] write(3, "1000", 4) = 4 [pid 4068] close(3) = 0 [pid 4068] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4068] write(1, "executing program\n", 18executing program ) = 18 [pid 4068] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4068] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4068] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4068] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4068] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4068] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4069 attached => {parent_tid=[4069]}, 88) = 4069 [pid 4069] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4069] <... futex resumed>) = 0 [pid 4068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4069] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4069] <... futex resumed>) = 0 [pid 4069] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4069] <... futex resumed>) = 0 [pid 4069] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4069] <... futex resumed>) = 0 [pid 4068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4069] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4068] exit_group(0) = ? [pid 4069] <... futex resumed>) = ? [pid 4069] +++ exited with 0 +++ [pid 4068] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4068, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17844", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17844", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17844/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17844/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17844/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17844") = 0 mkdir("./17845", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4070 ./strace-static-x86_64: Process 4070 attached [pid 4070] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4070] chdir("./17845") = 0 [pid 4070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4070] setpgid(0, 0) = 0 [pid 4070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4070] write(3, "1000", 4) = 4 [pid 4070] close(3) = 0 [pid 4070] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4070] write(1, "executing program\n", 18executing program ) = 18 [pid 4070] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4070] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4071 attached => {parent_tid=[4071]}, 88) = 4071 [pid 4070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4071] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4070] <... futex resumed>) = 0 [pid 4070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] <... futex resumed>) = 1 [pid 4071] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4070] <... futex resumed>) = 0 [pid 4070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4071] <... futex resumed>) = 1 [pid 4070] <... futex resumed>) = 0 [pid 4071] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4070] <... futex resumed>) = 0 [pid 4070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4070] <... futex resumed>) = 0 [pid 4070] exit_group(0) = ? [pid 4071] +++ exited with 0 +++ [pid 4070] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17845", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17845", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17845/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17845/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17845/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17845") = 0 mkdir("./17846", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4072 ./strace-static-x86_64: Process 4072 attached [pid 4072] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4072] chdir("./17846") = 0 [pid 4072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4072] setpgid(0, 0) = 0 [pid 4072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4072] write(3, "1000", 4) = 4 [pid 4072] close(3) = 0 [pid 4072] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4072] write(1, "executing program\n", 18executing program ) = 18 [pid 4072] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4072] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4072] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4072] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4072] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4072] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4073]}, 88) = 4073 [pid 4072] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4073 attached [pid 4073] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4073] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4073] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4072] <... futex resumed>) = 0 [pid 4072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4073] <... futex resumed>) = 1 [pid 4073] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4072] <... futex resumed>) = 0 [pid 4072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4073] <... futex resumed>) = 1 [pid 4073] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4072] <... futex resumed>) = 0 [pid 4072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4073] <... futex resumed>) = 1 [pid 4073] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4072] <... futex resumed>) = 0 [pid 4072] exit_group(0) = ? [pid 4073] <... futex resumed>) = ? [pid 4073] +++ exited with 0 +++ [pid 4072] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4072, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17846", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17846", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17846/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17846/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17846/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17846") = 0 mkdir("./17847", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4074 attached , child_tidptr=0x55558931b690) = 4074 [pid 4074] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4074] chdir("./17847") = 0 [pid 4074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4074] setpgid(0, 0) = 0 [pid 4074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4074] write(3, "1000", 4) = 4 [pid 4074] close(3) = 0 [pid 4074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4074] write(1, "executing program\n", 18executing program ) = 18 [pid 4074] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4074] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4074] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4075 attached => {parent_tid=[4075]}, 88) = 4075 [pid 4075] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4075] <... futex resumed>) = 0 [pid 4075] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4075] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4075] <... futex resumed>) = 0 [pid 4075] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4075] <... futex resumed>) = 0 [pid 4075] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4075] <... futex resumed>) = 0 [pid 4075] write(-1, "0x0000000000000001", 18 [pid 4074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4075] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4074] <... futex resumed>) = 0 [pid 4075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4074] exit_group(0) = ? [pid 4075] <... futex resumed>) = ? [pid 4075] +++ exited with 0 +++ [pid 4074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4074, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17847", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17847", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17847/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17847/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17847/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17847") = 0 mkdir("./17848", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4076 attached , child_tidptr=0x55558931b690) = 4076 [pid 4076] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4076] chdir("./17848") = 0 [pid 4076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4076] setpgid(0, 0) = 0 [pid 4076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4076] write(3, "1000", 4) = 4 [pid 4076] close(3) = 0 [pid 4076] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4076] write(1, "executing program\n", 18executing program ) = 18 [pid 4076] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4076] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4076] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4076] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4076] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4077 attached => {parent_tid=[4077]}, 88) = 4077 [pid 4076] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4077] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4077] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4077] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4076] <... futex resumed>) = 0 [pid 4076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4077] <... futex resumed>) = 1 [pid 4077] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4076] <... futex resumed>) = 0 [pid 4076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4077] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4076] <... futex resumed>) = 0 [pid 4076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4077] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4076] <... futex resumed>) = 0 [pid 4076] exit_group(0) = ? [pid 4077] +++ exited with 0 +++ [pid 4076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4076, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17848", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17848", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17848/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17848/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17848/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17848") = 0 mkdir("./17849", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4078 attached , child_tidptr=0x55558931b690) = 4078 [pid 4078] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4078] chdir("./17849") = 0 [pid 4078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4078] setpgid(0, 0) = 0 [pid 4078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4078] write(3, "1000", 4) = 4 [pid 4078] close(3) = 0 [pid 4078] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4078] write(1, "executing program\n", 18) = 18 [pid 4078] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4078] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4078] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4078] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4079 attached => {parent_tid=[4079]}, 88) = 4079 [pid 4079] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4079] <... set_robust_list resumed>) = 0 [pid 4079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4079] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4078] <... futex resumed>) = 0 [pid 4078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4079] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4078] <... futex resumed>) = 0 [pid 4078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4079] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4078] <... futex resumed>) = 0 [pid 4078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4079] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4078] <... futex resumed>) = 0 [pid 4079] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4078] exit_group(0) = ? [pid 4079] <... futex resumed>) = ? [pid 4079] +++ exited with 0 +++ [pid 4078] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17849", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17849", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17849/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17849/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17849/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17849") = 0 mkdir("./17850", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4080 attached , child_tidptr=0x55558931b690) = 4080 [pid 4080] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4080] chdir("./17850") = 0 [pid 4080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4080] setpgid(0, 0) = 0 [pid 4080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4080] write(3, "1000", 4) = 4 [pid 4080] close(3) = 0 [pid 4080] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4080] write(1, "executing program\n", 18executing program ) = 18 [pid 4080] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4080] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4080] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4080] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4081 attached => {parent_tid=[4081]}, 88) = 4081 [pid 4081] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4080] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4081] <... futex resumed>) = 0 [pid 4081] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4081] <... futex resumed>) = 0 [pid 4081] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4081] <... futex resumed>) = 0 [pid 4081] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4081] <... futex resumed>) = 0 [pid 4081] write(-1, "0x0000000000000001", 18 [pid 4080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4081] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4080] exit_group(0) = ? [pid 4081] <... futex resumed>) = ? [pid 4081] +++ exited with 0 +++ [pid 4080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17850", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17850", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17850/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17850/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17850/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17850") = 0 mkdir("./17851", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4082 ./strace-static-x86_64: Process 4082 attached [pid 4082] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4082] chdir("./17851") = 0 [pid 4082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4082] setpgid(0, 0) = 0 [pid 4082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4082] write(3, "1000", 4) = 4 [pid 4082] close(3) = 0 [pid 4082] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4082] write(1, "executing program\n", 18executing program ) = 18 [pid 4082] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4082] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4083]}, 88) = 4083 [pid 4082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4083 attached [pid 4083] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4083] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4083] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4082] <... futex resumed>) = 0 [pid 4082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4083] <... futex resumed>) = 1 [pid 4083] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4082] <... futex resumed>) = 0 [pid 4082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4083] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4082] <... futex resumed>) = 0 [pid 4082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4083] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4082] <... futex resumed>) = 0 [pid 4083] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4082] exit_group(0) = ? [pid 4083] <... futex resumed>) = ? [pid 4083] +++ exited with 0 +++ [pid 4082] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17851", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17851", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17851/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17851/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17851/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17851") = 0 mkdir("./17852", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4084 attached , child_tidptr=0x55558931b690) = 4084 [pid 4084] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4084] chdir("./17852") = 0 [pid 4084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4084] setpgid(0, 0) = 0 [pid 4084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4084] write(3, "1000", 4) = 4 [pid 4084] close(3) = 0 [pid 4084] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4084] write(1, "executing program\n", 18executing program ) = 18 [pid 4084] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4084] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4084] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4085 attached => {parent_tid=[4085]}, 88) = 4085 [pid 4085] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4085] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4085] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4085] <... futex resumed>) = 0 [pid 4085] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4085] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4084] <... futex resumed>) = 0 [pid 4084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4085] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4084] <... futex resumed>) = 0 [pid 4084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4085] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4084] <... futex resumed>) = 0 [pid 4084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4085] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4084] <... futex resumed>) = 0 [pid 4084] exit_group(0) = ? [pid 4085] +++ exited with 0 +++ [pid 4084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4084, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17852", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17852", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17852/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17852/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17852/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17852") = 0 mkdir("./17853", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4086 ./strace-static-x86_64: Process 4086 attached [pid 4086] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4086] chdir("./17853") = 0 [pid 4086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4086] setpgid(0, 0) = 0 [pid 4086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4086] write(3, "1000", 4) = 4 [pid 4086] close(3) = 0 [pid 4086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4086] write(1, "executing program\n", 18executing program ) = 18 [pid 4086] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4086] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4086] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4087 attached [pid 4087] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4087] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4086] <... clone3 resumed> => {parent_tid=[4087]}, 88) = 4087 [pid 4086] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4087] <... futex resumed>) = 0 [pid 4087] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4087] <... futex resumed>) = 0 [pid 4087] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4087] <... futex resumed>) = 0 [pid 4087] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4087] <... futex resumed>) = 0 [pid 4087] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4086] exit_group(0) = ? [pid 4087] <... futex resumed>) = ? [pid 4087] +++ exited with 0 +++ [pid 4086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17853", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17853", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17853/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17853/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17853/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17853") = 0 mkdir("./17854", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4088 ./strace-static-x86_64: Process 4088 attached [pid 4088] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4088] chdir("./17854") = 0 [pid 4088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4088] setpgid(0, 0) = 0 [pid 4088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4088] write(3, "1000", 4) = 4 [pid 4088] close(3) = 0 [pid 4088] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4088] write(1, "executing program\n", 18) = 18 [pid 4088] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4088] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4088] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4088] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4088] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4089 attached [pid 4089] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4088] <... clone3 resumed> => {parent_tid=[4089]}, 88) = 4089 [pid 4088] rt_sigprocmask(SIG_SETMASK, [], [pid 4089] <... set_robust_list resumed>) = 0 [pid 4088] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4089] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4088] <... futex resumed>) = 0 [pid 4088] exit_group(0) = ? [pid 4089] +++ exited with 0 +++ [pid 4088] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17854", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17854", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17854/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17854/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17854/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17854") = 0 mkdir("./17855", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4090 ./strace-static-x86_64: Process 4090 attached [pid 4090] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4090] chdir("./17855") = 0 [pid 4090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4090] setpgid(0, 0) = 0 [pid 4090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4090] write(3, "1000", 4) = 4 [pid 4090] close(3) = 0 [pid 4090] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4090] write(1, "executing program\n", 18) = 18 [pid 4090] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4090] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4090] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4090] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4091 attached [pid 4091] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4090] <... clone3 resumed> => {parent_tid=[4091]}, 88) = 4091 [pid 4090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4091] <... futex resumed>) = 0 [pid 4091] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4091] <... futex resumed>) = 0 [pid 4091] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4091] <... futex resumed>) = 0 [pid 4090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4091] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4090] <... futex resumed>) = 0 [pid 4091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4091] <... futex resumed>) = 0 [pid 4090] <... futex resumed>) = 1 [pid 4090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4091] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4090] <... futex resumed>) = 0 [pid 4091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4090] exit_group(0) = ? [pid 4091] <... futex resumed>) = ? [pid 4091] +++ exited with 0 +++ [pid 4090] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17855", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17855", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17855/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17855/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17855/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17855") = 0 mkdir("./17856", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4092 ./strace-static-x86_64: Process 4092 attached [pid 4092] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4092] chdir("./17856") = 0 [pid 4092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4092] setpgid(0, 0) = 0 [pid 4092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4092] write(3, "1000", 4) = 4 [pid 4092] close(3) = 0 [pid 4092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4092] write(1, "executing program\n", 18executing program ) = 18 [pid 4092] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4092] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4092] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4092] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4093 attached => {parent_tid=[4093]}, 88) = 4093 [pid 4092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4093] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4093] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4093] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4092] <... futex resumed>) = 0 [pid 4092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4093] <... futex resumed>) = 1 [pid 4093] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4092] <... futex resumed>) = 0 [pid 4092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4093] <... futex resumed>) = 1 [pid 4093] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4092] <... futex resumed>) = 0 [pid 4092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4093] <... futex resumed>) = 1 [pid 4093] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4092] <... futex resumed>) = 0 [pid 4092] exit_group(0) = ? [pid 4093] <... futex resumed>) = ? [pid 4093] +++ exited with 0 +++ [pid 4092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17856", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17856", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17856/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17856/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17856/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17856") = 0 mkdir("./17857", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4094 ./strace-static-x86_64: Process 4094 attached [pid 4094] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4094] chdir("./17857") = 0 [pid 4094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4094] setpgid(0, 0) = 0 [pid 4094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4094] write(3, "1000", 4) = 4 [pid 4094] close(3) = 0 [pid 4094] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4094] write(1, "executing program\n", 18executing program ) = 18 [pid 4094] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4094] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4094] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4095 attached => {parent_tid=[4095]}, 88) = 4095 [pid 4094] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4095] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4095] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4094] <... futex resumed>) = 0 [pid 4094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4094] <... futex resumed>) = 0 [pid 4094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4094] <... futex resumed>) = 0 [pid 4094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4094] <... futex resumed>) = 0 [pid 4094] exit_group(0) = ? [pid 4095] +++ exited with 0 +++ [pid 4094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17857", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17857", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17857/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17857/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17857/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17857") = 0 mkdir("./17858", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4096 ./strace-static-x86_64: Process 4096 attached [pid 4096] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4096] chdir("./17858") = 0 [pid 4096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4096] setpgid(0, 0) = 0 [pid 4096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4096] write(3, "1000", 4) = 4 [pid 4096] close(3) = 0 [pid 4096] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4096] write(1, "executing program\n", 18) = 18 [pid 4096] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4096] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4096] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4097 attached => {parent_tid=[4097]}, 88) = 4097 [pid 4096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4097] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4097] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4097] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4096] <... futex resumed>) = 0 [pid 4096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4097] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4096] <... futex resumed>) = 0 [pid 4096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4097] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4096] <... futex resumed>) = 0 [pid 4096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4097] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4096] <... futex resumed>) = 0 [pid 4096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4097] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4096] <... futex resumed>) = 0 [pid 4096] exit_group(0) = ? [pid 4097] +++ exited with 0 +++ [pid 4096] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4096, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17858", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17858", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17858/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17858/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17858/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17858") = 0 mkdir("./17859", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4098 ./strace-static-x86_64: Process 4098 attached [pid 4098] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4098] chdir("./17859") = 0 [pid 4098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4098] setpgid(0, 0) = 0 [pid 4098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4098] write(3, "1000", 4) = 4 [pid 4098] close(3) = 0 [pid 4098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4098] write(1, "executing program\n", 18executing program ) = 18 [pid 4098] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4098] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4098] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4099 attached [pid 4099] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4098] <... clone3 resumed> => {parent_tid=[4099]}, 88) = 4099 [pid 4098] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4099] <... futex resumed>) = 0 [pid 4099] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4099] <... futex resumed>) = 0 [pid 4099] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4099] <... futex resumed>) = 0 [pid 4099] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4099] <... futex resumed>) = 0 [pid 4098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4099] write(-1, "0x0000000000000001", 18 [pid 4098] <... futex resumed>) = 0 [pid 4098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4099] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4098] <... futex resumed>) = 0 [pid 4098] exit_group(0) = ? [pid 4099] +++ exited with 0 +++ [pid 4098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17859", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17859", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17859/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17859/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17859/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17859") = 0 mkdir("./17860", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4100 ./strace-static-x86_64: Process 4100 attached [pid 4100] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4100] chdir("./17860") = 0 [pid 4100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4100] setpgid(0, 0) = 0 [pid 4100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4100] write(3, "1000", 4) = 4 [pid 4100] close(3) = 0 [pid 4100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4100] write(1, "executing program\n", 18executing program ) = 18 [pid 4100] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4100] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4101 attached => {parent_tid=[4101]}, 88) = 4101 [pid 4100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4101] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4100] <... futex resumed>) = 0 [pid 4100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] <... futex resumed>) = 1 [pid 4101] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4100] <... futex resumed>) = 0 [pid 4100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] <... futex resumed>) = 1 [pid 4101] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4100] <... futex resumed>) = 0 [pid 4100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] <... futex resumed>) = 1 [pid 4101] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4100] <... futex resumed>) = 0 [pid 4100] exit_group(0) = ? [pid 4101] <... futex resumed>) = ? [pid 4101] +++ exited with 0 +++ [pid 4100] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17860", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17860", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17860/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17860/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17860/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17860") = 0 mkdir("./17861", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4102 ./strace-static-x86_64: Process 4102 attached [pid 4102] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4102] chdir("./17861") = 0 [pid 4102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4102] setpgid(0, 0) = 0 [pid 4102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4102] write(3, "1000", 4) = 4 [pid 4102] close(3) = 0 [pid 4102] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4102] write(1, "executing program\n", 18executing program ) = 18 [pid 4102] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4102] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4102] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4103 attached => {parent_tid=[4103]}, 88) = 4103 [pid 4103] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4103] <... futex resumed>) = 0 [pid 4102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4103] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4103] <... futex resumed>) = 0 [pid 4103] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4103] <... futex resumed>) = 0 [pid 4103] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4103] <... futex resumed>) = 0 [pid 4103] write(-1, "0x0000000000000001", 18 [pid 4102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4103] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4102] exit_group(0) = ? [pid 4103] <... futex resumed>) = ? [pid 4103] +++ exited with 0 +++ [pid 4102] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17861", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17861", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17861/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17861/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17861/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17861") = 0 mkdir("./17862", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4104 ./strace-static-x86_64: Process 4104 attached [pid 4104] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4104] chdir("./17862") = 0 [pid 4104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4104] setpgid(0, 0) = 0 [pid 4104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4104] write(3, "1000", 4) = 4 [pid 4104] close(3) = 0 [pid 4104] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4104] write(1, "executing program\n", 18) = 18 [pid 4104] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4104] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4104] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4105]}, 88) = 4105 [pid 4104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4105 attached [pid 4105] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4105] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4105] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4104] <... futex resumed>) = 0 [pid 4104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4105] <... futex resumed>) = 1 [pid 4105] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4104] <... futex resumed>) = 0 [pid 4104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4105] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4104] <... futex resumed>) = 0 [pid 4104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4105] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4104] <... futex resumed>) = 0 [pid 4104] exit_group(0) = ? [pid 4105] +++ exited with 0 +++ [pid 4104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17862", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17862", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17862/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17862/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17862/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17862") = 0 mkdir("./17863", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4106 ./strace-static-x86_64: Process 4106 attached [pid 4106] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4106] chdir("./17863") = 0 [pid 4106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4106] setpgid(0, 0) = 0 [pid 4106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4106] write(3, "1000", 4) = 4 [pid 4106] close(3) = 0 [pid 4106] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4106] write(1, "executing program\n", 18executing program ) = 18 [pid 4106] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4106] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4106] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4106] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4106] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4107]}, 88) = 4107 [pid 4106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4107 attached [pid 4107] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4107] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4106] <... futex resumed>) = 0 [pid 4106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4107] <... futex resumed>) = 1 [pid 4107] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4106] <... futex resumed>) = 0 [pid 4106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4107] <... futex resumed>) = 1 [pid 4107] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4106] <... futex resumed>) = 0 [pid 4106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4107] <... futex resumed>) = 1 [pid 4107] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4106] <... futex resumed>) = 0 [pid 4106] exit_group(0) = ? [pid 4107] <... futex resumed>) = ? [pid 4107] +++ exited with 0 +++ [pid 4106] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17863", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17863", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17863/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17863/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17863/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17863") = 0 mkdir("./17864", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4108 ./strace-static-x86_64: Process 4108 attached [pid 4108] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4108] chdir("./17864") = 0 [pid 4108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4108] setpgid(0, 0) = 0 [pid 4108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4108] write(3, "1000", 4) = 4 [pid 4108] close(3) = 0 [pid 4108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4108] write(1, "executing program\n", 18executing program ) = 18 [pid 4108] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4108] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4108] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4109 attached => {parent_tid=[4109]}, 88) = 4109 [pid 4109] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4109] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4109] <... futex resumed>) = 0 [pid 4109] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4109] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4109] <... futex resumed>) = 0 [pid 4109] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4109] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4109] <... futex resumed>) = 0 [pid 4108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4109] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4108] <... futex resumed>) = 0 [pid 4108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4109] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4108] <... futex resumed>) = 0 [pid 4108] exit_group(0) = ? [pid 4109] +++ exited with 0 +++ [pid 4108] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17864", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17864", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17864/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17864/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17864/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17864") = 0 mkdir("./17865", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4110 ./strace-static-x86_64: Process 4110 attached [pid 4110] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4110] chdir("./17865") = 0 [pid 4110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4110] setpgid(0, 0) = 0 [pid 4110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4110] write(3, "1000", 4) = 4 [pid 4110] close(3) = 0 [pid 4110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4110] write(1, "executing program\n", 18executing program ) = 18 [pid 4110] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4110] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4110] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4111 attached => {parent_tid=[4111]}, 88) = 4111 [pid 4110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4111] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4111] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4111] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4110] <... futex resumed>) = 0 [pid 4110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4111] <... futex resumed>) = 1 [pid 4111] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4110] <... futex resumed>) = 0 [pid 4110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4111] <... futex resumed>) = 1 [pid 4111] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4110] <... futex resumed>) = 0 [pid 4110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4111] <... futex resumed>) = 1 [pid 4111] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4110] <... futex resumed>) = 0 [pid 4110] exit_group(0) = ? [pid 4111] <... futex resumed>) = ? [pid 4111] +++ exited with 0 +++ [pid 4110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17865", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17865", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17865/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17865/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17865/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17865") = 0 mkdir("./17866", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4112 ./strace-static-x86_64: Process 4112 attached [pid 4112] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4112] chdir("./17866") = 0 [pid 4112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4112] setpgid(0, 0) = 0 [pid 4112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4112] write(3, "1000", 4) = 4 [pid 4112] close(3) = 0 [pid 4112] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4112] write(1, "executing program\n", 18) = 18 [pid 4112] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4112] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4113]}, 88) = 4113 [pid 4112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4113 attached [pid 4113] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4113] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4113] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4112] <... futex resumed>) = 0 [pid 4112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4113] <... futex resumed>) = 1 [pid 4113] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4112] <... futex resumed>) = 0 [pid 4112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4113] <... futex resumed>) = 1 [pid 4113] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4112] <... futex resumed>) = 0 [pid 4112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4113] <... futex resumed>) = 1 [pid 4113] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4112] <... futex resumed>) = 0 [pid 4112] exit_group(0) = ? [pid 4113] +++ exited with 0 +++ [pid 4112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17866", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17866", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17866/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17866/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17866/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17866") = 0 mkdir("./17867", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4114 ./strace-static-x86_64: Process 4114 attached [pid 4114] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4114] chdir("./17867") = 0 [pid 4114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4114] setpgid(0, 0) = 0 [pid 4114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4114] write(3, "1000", 4) = 4 [pid 4114] close(3) = 0 [pid 4114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4114] write(1, "executing program\n", 18executing program ) = 18 [pid 4114] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4114] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4114] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4115 attached => {parent_tid=[4115]}, 88) = 4115 [pid 4115] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4115] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4114] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] <... futex resumed>) = 0 [pid 4115] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4115] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] <... futex resumed>) = 0 [pid 4115] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4115] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] <... futex resumed>) = 0 [pid 4114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4115] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4114] <... futex resumed>) = 0 [pid 4114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] <... futex resumed>) = 0 [pid 4114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4115] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4114] <... futex resumed>) = 0 [pid 4114] exit_group(0) = ? [pid 4115] <... futex resumed>) = ? [pid 4115] +++ exited with 0 +++ [pid 4114] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17867", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17867", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17867/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17867/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17867/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17867") = 0 mkdir("./17868", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4116 ./strace-static-x86_64: Process 4116 attached [pid 4116] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4116] chdir("./17868") = 0 [pid 4116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4116] setpgid(0, 0) = 0 [pid 4116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4116] write(3, "1000", 4) = 4 [pid 4116] close(3) = 0 [pid 4116] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4116] write(1, "executing program\n", 18executing program ) = 18 [pid 4116] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4116] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4116] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4116] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4117 attached => {parent_tid=[4117]}, 88) = 4117 [pid 4116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4117] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4117] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4116] <... futex resumed>) = 0 [pid 4116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4117] <... futex resumed>) = 1 [pid 4117] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4116] <... futex resumed>) = 0 [pid 4116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4117] <... futex resumed>) = 1 [pid 4117] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4116] <... futex resumed>) = 0 [pid 4116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4117] <... futex resumed>) = 1 [pid 4117] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4116] <... futex resumed>) = 0 [pid 4116] exit_group(0) = ? [pid 4117] <... futex resumed>) = ? [pid 4117] +++ exited with 0 +++ [pid 4116] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4116, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17868", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17868", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17868/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17868/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17868/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17868") = 0 mkdir("./17869", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4118 ./strace-static-x86_64: Process 4118 attached [pid 4118] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4118] chdir("./17869") = 0 [pid 4118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4118] setpgid(0, 0) = 0 [pid 4118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4118] write(3, "1000", 4) = 4 [pid 4118] close(3) = 0 [pid 4118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4118] write(1, "executing program\n", 18executing program ) = 18 [pid 4118] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4118] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4118] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4118] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4118] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4119 attached => {parent_tid=[4119]}, 88) = 4119 [pid 4118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4119] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4119] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4119] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4119] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4119] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4119] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4119] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4118] exit_group(0) = ? [pid 4119] <... futex resumed>) = ? [pid 4119] +++ exited with 0 +++ [pid 4118] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17869", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17869", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17869/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17869/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17869/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17869") = 0 mkdir("./17870", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4120 ./strace-static-x86_64: Process 4120 attached [pid 4120] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4120] chdir("./17870") = 0 [pid 4120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4120] setpgid(0, 0) = 0 [pid 4120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4120] write(3, "1000", 4) = 4 [pid 4120] close(3) = 0 [pid 4120] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4120] write(1, "executing program\n", 18executing program ) = 18 [pid 4120] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4120] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4120] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4121 attached => {parent_tid=[4121]}, 88) = 4121 [pid 4121] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4121] <... futex resumed>) = 0 [pid 4121] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4121] <... futex resumed>) = 0 [pid 4121] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4121] <... futex resumed>) = 0 [pid 4121] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4121] <... futex resumed>) = 0 [pid 4121] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4120] exit_group(0) = ? [pid 4121] <... futex resumed>) = ? [pid 4121] +++ exited with 0 +++ [pid 4120] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4120, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17870", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17870", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17870/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17870/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17870/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17870") = 0 mkdir("./17871", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4122 attached [pid 4122] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4122] chdir("./17871" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 4122 [pid 4122] <... chdir resumed>) = 0 [pid 4122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4122] setpgid(0, 0) = 0 [pid 4122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4122] write(3, "1000", 4) = 4 [pid 4122] close(3) = 0 [pid 4122] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4122] write(1, "executing program\n", 18executing program ) = 18 [pid 4122] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4122] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4122] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4122] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4122] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4122] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4123]}, 88) = 4123 [pid 4122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4123 attached [pid 4123] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4123] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4123] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4122] <... futex resumed>) = 0 [pid 4122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4123] <... futex resumed>) = 1 [pid 4123] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4122] <... futex resumed>) = 0 [pid 4122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4123] <... futex resumed>) = 1 [pid 4123] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4122] <... futex resumed>) = 0 [pid 4122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4123] <... futex resumed>) = 1 [pid 4123] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4122] <... futex resumed>) = 0 [pid 4122] exit_group(0) = ? [pid 4123] <... futex resumed>) = ? [pid 4123] +++ exited with 0 +++ [pid 4122] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17871", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17871", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17871/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17871/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17871/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17871") = 0 mkdir("./17872", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4124 ./strace-static-x86_64: Process 4124 attached [pid 4124] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4124] chdir("./17872") = 0 [pid 4124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4124] setpgid(0, 0) = 0 [pid 4124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4124] write(3, "1000", 4) = 4 [pid 4124] close(3) = 0 [pid 4124] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4124] write(1, "executing program\n", 18executing program ) = 18 [pid 4124] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4124] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4125 attached [pid 4125] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4124] <... clone3 resumed> => {parent_tid=[4125]}, 88) = 4125 [pid 4125] <... set_robust_list resumed>) = 0 [pid 4125] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4125] <... futex resumed>) = 0 [pid 4125] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4125] <... futex resumed>) = 0 [pid 4125] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4125] <... futex resumed>) = 0 [pid 4124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4125] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4124] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4125] <... futex resumed>) = 0 [pid 4124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4125] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4124] <... futex resumed>) = 0 [pid 4125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4124] exit_group(0) = ? [pid 4125] <... futex resumed>) = ? [pid 4125] +++ exited with 0 +++ [pid 4124] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17872", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17872", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17872/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17872/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17872/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17872") = 0 mkdir("./17873", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4126 ./strace-static-x86_64: Process 4126 attached [pid 4126] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4126] chdir("./17873") = 0 [pid 4126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4126] setpgid(0, 0) = 0 [pid 4126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4126] write(3, "1000", 4) = 4 [pid 4126] close(3) = 0 [pid 4126] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4126] write(1, "executing program\n", 18executing program ) = 18 [pid 4126] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4126] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4126] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4127]}, 88) = 4127 [pid 4126] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4127 attached [pid 4127] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4127] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4127] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4126] <... futex resumed>) = 0 [pid 4126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4127] <... futex resumed>) = 1 [pid 4127] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4126] <... futex resumed>) = 0 [pid 4126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4127] <... futex resumed>) = 1 [pid 4127] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4126] <... futex resumed>) = 0 [pid 4126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4127] <... futex resumed>) = 1 [pid 4127] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4126] <... futex resumed>) = 0 [pid 4126] exit_group(0) = ? [pid 4127] <... futex resumed>) = ? [pid 4127] +++ exited with 0 +++ [pid 4126] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4126, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17873", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17873", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17873/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17873/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17873/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17873") = 0 mkdir("./17874", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4128 ./strace-static-x86_64: Process 4128 attached [pid 4128] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4128] chdir("./17874") = 0 [pid 4128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4128] setpgid(0, 0) = 0 [pid 4128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4128] write(3, "1000", 4) = 4 [pid 4128] close(3) = 0 [pid 4128] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4128] write(1, "executing program\n", 18) = 18 [pid 4128] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4128] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4128] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4128] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4129 attached => {parent_tid=[4129]}, 88) = 4129 [pid 4128] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4129] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4129] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4128] <... futex resumed>) = 0 [pid 4128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4129] <... futex resumed>) = 1 [pid 4129] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4128] <... futex resumed>) = 0 [pid 4128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4129] <... futex resumed>) = 1 [pid 4129] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4128] <... futex resumed>) = 0 [pid 4128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4129] <... futex resumed>) = 1 [pid 4129] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4128] <... futex resumed>) = 0 [pid 4128] exit_group(0) = ? [pid 4129] <... futex resumed>) = ? [pid 4129] +++ exited with 0 +++ [pid 4128] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17874", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17874", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17874/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17874/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17874/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17874") = 0 mkdir("./17875", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4130 ./strace-static-x86_64: Process 4130 attached [pid 4130] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4130] chdir("./17875") = 0 [pid 4130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4130] setpgid(0, 0) = 0 [pid 4130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4130] write(3, "1000", 4) = 4 [pid 4130] close(3) = 0 [pid 4130] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4130] write(1, "executing program\n", 18) = 18 [pid 4130] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4130] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4131 attached => {parent_tid=[4131]}, 88) = 4131 [pid 4131] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4131] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4131] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4131] <... futex resumed>) = 0 [pid 4131] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4131] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4131] <... futex resumed>) = 0 [pid 4131] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4131] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4131] <... futex resumed>) = 0 [pid 4131] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4131] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4131] <... futex resumed>) = 0 [pid 4131] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4131] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4130] exit_group(0) = ? [pid 4131] <... futex resumed>) = ? [pid 4131] +++ exited with 0 +++ [pid 4130] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17875", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17875", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17875/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17875/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17875/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17875") = 0 mkdir("./17876", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4132 ./strace-static-x86_64: Process 4132 attached [pid 4132] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4132] chdir("./17876") = 0 [pid 4132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4132] setpgid(0, 0) = 0 [pid 4132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4132] write(3, "1000", 4) = 4 [pid 4132] close(3) = 0 executing program [pid 4132] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4132] write(1, "executing program\n", 18) = 18 [pid 4132] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4132] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4132] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4133]}, 88) = 4133 ./strace-static-x86_64: Process 4133 attached [pid 4132] rt_sigprocmask(SIG_SETMASK, [], [pid 4133] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4133] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4133] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4133] <... futex resumed>) = 0 [pid 4132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4133] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4132] <... futex resumed>) = 0 [pid 4133] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4133] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4132] <... futex resumed>) = 0 [pid 4132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4133] <... futex resumed>) = 0 [pid 4132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4133] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4132] <... futex resumed>) = 0 [pid 4133] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4132] <... futex resumed>) = 0 [pid 4133] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4132] <... futex resumed>) = 0 [pid 4133] write(-1, "0x0000000000000001", 18 [pid 4132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4133] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4132] <... futex resumed>) = 0 [pid 4132] exit_group(0) = ? [pid 4133] +++ exited with 0 +++ [pid 4132] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17876", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17876", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17876/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17876/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17876/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17876") = 0 mkdir("./17877", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4134 ./strace-static-x86_64: Process 4134 attached [pid 4134] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4134] chdir("./17877") = 0 [pid 4134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4134] setpgid(0, 0) = 0 [pid 4134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4134] write(3, "1000", 4) = 4 [pid 4134] close(3) = 0 [pid 4134] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4134] write(1, "executing program\n", 18executing program ) = 18 [pid 4134] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4134] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4134] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4134] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4134] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4134] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4135 attached => {parent_tid=[4135]}, 88) = 4135 [pid 4135] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4134] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4135] <... futex resumed>) = 0 [pid 4135] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4135] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4135] <... futex resumed>) = 0 [pid 4135] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4135] <... futex resumed>) = 0 [pid 4135] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4135] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4135] <... futex resumed>) = 0 [pid 4135] write(-1, "0x0000000000000001", 18 [pid 4134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4135] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4134] exit_group(0) = ? [pid 4135] <... futex resumed>) = ? [pid 4135] +++ exited with 0 +++ [pid 4134] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4134, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17877", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17877", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17877/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17877/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17877/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17877") = 0 mkdir("./17878", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4137 attached , child_tidptr=0x55558931b690) = 4137 [pid 4137] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4137] chdir("./17878") = 0 [pid 4137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4137] setpgid(0, 0) = 0 [pid 4137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4137] write(3, "1000", 4) = 4 [pid 4137] close(3) = 0 [pid 4137] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4137] write(1, "executing program\n", 18executing program ) = 18 [pid 4137] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4137] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4137] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4137] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4137] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4137] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4138]}, 88) = 4138 ./strace-static-x86_64: Process 4138 attached [pid 4138] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4138] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4137] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4138] <... futex resumed>) = 0 [pid 4138] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4138] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4138] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4137] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4137] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4138] <... futex resumed>) = 0 [pid 4138] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4137] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4138] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4138] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4137] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4138] <... futex resumed>) = 0 [pid 4138] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4138] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4138] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4137] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4137] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4138] <... futex resumed>) = 0 [pid 4137] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4138] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4138] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4138] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4137] exit_group(0) = ? [pid 4138] <... futex resumed>) = ? [pid 4138] +++ exited with 0 +++ [pid 4137] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17878", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17878", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17878/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17878/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17878/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17878") = 0 mkdir("./17879", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4139 ./strace-static-x86_64: Process 4139 attached [pid 4139] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4139] chdir("./17879") = 0 [pid 4139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4139] setpgid(0, 0) = 0 [pid 4139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4139] write(3, "1000", 4) = 4 [pid 4139] close(3) = 0 [pid 4139] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4139] write(1, "executing program\n", 18) = 18 [pid 4139] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4139] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4139] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4139] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4139] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4140 attached => {parent_tid=[4140]}, 88) = 4140 [pid 4140] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4139] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4140] <... set_robust_list resumed>) = 0 [pid 4139] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4140] rt_sigprocmask(SIG_SETMASK, [], [pid 4139] <... futex resumed>) = 0 [pid 4140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4139] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4140] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4139] <... futex resumed>) = 0 [pid 4139] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4140] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4139] <... futex resumed>) = 0 [pid 4139] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4140] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4139] <... futex resumed>) = 0 [pid 4139] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4140] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4139] <... futex resumed>) = 0 [pid 4139] exit_group(0) = ? [pid 4140] +++ exited with 0 +++ [pid 4139] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4139, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17879", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17879", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17879/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17879/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17879/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17879") = 0 mkdir("./17880", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4141 attached , child_tidptr=0x55558931b690) = 4141 [pid 4141] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4141] chdir("./17880") = 0 [pid 4141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4141] setpgid(0, 0) = 0 [pid 4141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4141] write(3, "1000", 4) = 4 [pid 4141] close(3) = 0 [pid 4141] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4141] write(1, "executing program\n", 18executing program ) = 18 [pid 4141] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4141] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4141] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4141] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4142 attached => {parent_tid=[4142]}, 88) = 4142 [pid 4142] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4141] rt_sigprocmask(SIG_SETMASK, [], [pid 4142] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4141] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4141] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4141] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4142] <... futex resumed>) = 0 [pid 4142] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4142] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4141] <... futex resumed>) = 0 [pid 4141] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4141] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4142] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4142] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4141] <... futex resumed>) = 0 [pid 4141] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4141] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4142] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4142] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4141] <... futex resumed>) = 0 [pid 4141] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4141] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4142] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4142] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4141] <... futex resumed>) = 0 [pid 4141] exit_group(0) = ? [pid 4142] +++ exited with 0 +++ [pid 4141] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4141, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17880", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17880", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17880/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17880/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17880/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17880") = 0 mkdir("./17881", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4143 ./strace-static-x86_64: Process 4143 attached [pid 4143] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4143] chdir("./17881") = 0 [pid 4143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4143] setpgid(0, 0) = 0 [pid 4143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4143] write(3, "1000", 4) = 4 [pid 4143] close(3) = 0 [pid 4143] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4143] write(1, "executing program\n", 18executing program ) = 18 [pid 4143] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4143] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4143] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4143] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4143] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4143] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4144 attached => {parent_tid=[4144]}, 88) = 4144 [pid 4144] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4144] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4144] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4143] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4144] <... futex resumed>) = 0 [pid 4144] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4143] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4144] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4144] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4144] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4143] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4144] <... futex resumed>) = 0 [pid 4144] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4143] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4144] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4144] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4143] <... futex resumed>) = 0 [pid 4144] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4143] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4143] <... futex resumed>) = 0 [pid 4144] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4143] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4144] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4144] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4143] <... futex resumed>) = 0 [pid 4144] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4143] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4143] <... futex resumed>) = 0 [pid 4144] write(-1, "0x0000000000000001", 18 [pid 4143] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4144] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4144] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4143] <... futex resumed>) = 0 [pid 4144] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4143] exit_group(0 [pid 4144] <... futex resumed>) = ? [pid 4143] <... exit_group resumed>) = ? [pid 4144] +++ exited with 0 +++ [pid 4143] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4143, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17881", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17881", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17881/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17881/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17881/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17881") = 0 mkdir("./17882", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4145 ./strace-static-x86_64: Process 4145 attached [pid 4145] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4145] chdir("./17882") = 0 [pid 4145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4145] setpgid(0, 0) = 0 [pid 4145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4145] write(3, "1000", 4) = 4 [pid 4145] close(3) = 0 [pid 4145] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4145] write(1, "executing program\n", 18) = 18 [pid 4145] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4145] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4145] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4145] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4145] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4146 attached => {parent_tid=[4146]}, 88) = 4146 [pid 4145] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4145] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4146] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4146] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4146] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4145] <... futex resumed>) = 0 [pid 4145] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4146] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4145] <... futex resumed>) = 0 [pid 4145] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4146] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4145] <... futex resumed>) = 0 [pid 4145] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4146] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4145] <... futex resumed>) = 0 [pid 4145] exit_group(0) = ? [pid 4146] +++ exited with 0 +++ [pid 4145] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4145, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17882", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17882", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17882/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17882/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17882/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17882") = 0 mkdir("./17883", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4147 ./strace-static-x86_64: Process 4147 attached [pid 4147] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4147] chdir("./17883") = 0 [pid 4147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4147] setpgid(0, 0) = 0 [pid 4147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4147] write(3, "1000", 4) = 4 [pid 4147] close(3) = 0 [pid 4147] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4147] write(1, "executing program\n", 18executing program ) = 18 [pid 4147] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4147] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4147] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4147] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4148 attached => {parent_tid=[4148]}, 88) = 4148 [pid 4147] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4148] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4148] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4147] <... futex resumed>) = 0 [pid 4147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4148] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4147] <... futex resumed>) = 0 [pid 4147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4148] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4147] <... futex resumed>) = 0 [pid 4147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4148] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4147] <... futex resumed>) = 0 [pid 4147] exit_group(0) = ? [pid 4148] +++ exited with 0 +++ [pid 4147] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4147, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17883", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17883", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17883/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17883/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17883/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17883") = 0 mkdir("./17884", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4149 ./strace-static-x86_64: Process 4149 attached [pid 4149] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4149] chdir("./17884") = 0 [pid 4149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4149] setpgid(0, 0) = 0 [pid 4149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4149] write(3, "1000", 4) = 4 [pid 4149] close(3) = 0 [pid 4149] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4149] write(1, "executing program\n", 18executing program ) = 18 [pid 4149] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4149] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4149] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4149] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4149] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4149] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4150]}, 88) = 4150 ./strace-static-x86_64: Process 4150 attached [pid 4149] rt_sigprocmask(SIG_SETMASK, [], [pid 4150] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4150] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4149] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4150] <... futex resumed>) = 0 [pid 4149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4150] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4149] <... futex resumed>) = 0 [pid 4149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4150] <... futex resumed>) = 0 [pid 4150] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4150] <... futex resumed>) = 0 [pid 4150] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4150] <... futex resumed>) = 0 [pid 4149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4150] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4149] <... futex resumed>) = 0 [pid 4150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4149] exit_group(0 [pid 4150] <... futex resumed>) = ? [pid 4149] <... exit_group resumed>) = ? [pid 4150] +++ exited with 0 +++ [pid 4149] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4149, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17884", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17884", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17884/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17884/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17884/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17884") = 0 mkdir("./17885", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4151 attached , child_tidptr=0x55558931b690) = 4151 [pid 4151] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4151] chdir("./17885") = 0 [pid 4151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4151] setpgid(0, 0) = 0 [pid 4151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4151] write(3, "1000", 4) = 4 [pid 4151] close(3) = 0 [pid 4151] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4151] write(1, "executing program\n", 18) = 18 [pid 4151] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4151] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4151] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4151] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4151] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4152 attached [pid 4152] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4151] <... clone3 resumed> => {parent_tid=[4152]}, 88) = 4152 [pid 4151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4152] <... futex resumed>) = 0 [pid 4152] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4152] <... futex resumed>) = 0 [pid 4152] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4152] <... futex resumed>) = 0 [pid 4152] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4152] <... futex resumed>) = 0 [pid 4152] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4151] exit_group(0) = ? [pid 4152] <... futex resumed>) = ? [pid 4152] +++ exited with 0 +++ [pid 4151] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4151, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17885", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17885", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17885/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17885/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17885/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17885") = 0 mkdir("./17886", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4153 ./strace-static-x86_64: Process 4153 attached [pid 4153] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4153] chdir("./17886") = 0 [pid 4153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4153] setpgid(0, 0) = 0 [pid 4153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4153] write(3, "1000", 4) = 4 [pid 4153] close(3) = 0 [pid 4153] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4153] write(1, "executing program\n", 18executing program ) = 18 [pid 4153] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4153] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4153] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4153] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4153] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4154 attached => {parent_tid=[4154]}, 88) = 4154 [pid 4153] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4154] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4154] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4154] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4153] <... futex resumed>) = 0 [pid 4153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4154] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4153] <... futex resumed>) = 0 [pid 4153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4154] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4153] <... futex resumed>) = 0 [pid 4153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4154] write(-1, "0x0000000000000001", 18 [pid 4153] <... futex resumed>) = 0 [pid 4153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4154] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4153] <... futex resumed>) = 0 [pid 4153] exit_group(0 [pid 4154] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4153] <... exit_group resumed>) = ? [pid 4154] <... futex resumed>) = ? [pid 4154] +++ exited with 0 +++ [pid 4153] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4153, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17886", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17886", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17886/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17886/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17886/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17886") = 0 mkdir("./17887", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4155 ./strace-static-x86_64: Process 4155 attached [pid 4155] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4155] chdir("./17887") = 0 [pid 4155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4155] setpgid(0, 0) = 0 [pid 4155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4155] write(3, "1000", 4) = 4 [pid 4155] close(3) = 0 [pid 4155] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4155] write(1, "executing program\n", 18executing program ) = 18 [pid 4155] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4155] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4155] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4155] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4155] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4155] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4156 attached => {parent_tid=[4156]}, 88) = 4156 [pid 4156] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4156] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4156] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4155] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4156] <... futex resumed>) = 0 [pid 4156] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4156] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4156] <... futex resumed>) = 0 [pid 4156] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4155] <... futex resumed>) = 0 [pid 4155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4156] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4155] <... futex resumed>) = 0 [pid 4155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4156] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4155] <... futex resumed>) = 0 [pid 4155] exit_group(0) = ? [pid 4156] +++ exited with 0 +++ [pid 4155] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4155, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17887", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17887", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17887/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17887/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17887/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17887") = 0 mkdir("./17888", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4157 ./strace-static-x86_64: Process 4157 attached [pid 4157] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4157] chdir("./17888") = 0 [pid 4157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4157] setpgid(0, 0) = 0 [pid 4157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4157] write(3, "1000", 4) = 4 [pid 4157] close(3) = 0 [pid 4157] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4157] write(1, "executing program\n", 18executing program ) = 18 [pid 4157] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4157] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4157] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4157] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4158 attached => {parent_tid=[4158]}, 88) = 4158 [pid 4158] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4158] <... set_robust_list resumed>) = 0 [pid 4157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4158] rt_sigprocmask(SIG_SETMASK, [], [pid 4157] <... futex resumed>) = 0 [pid 4158] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4158] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4157] <... futex resumed>) = 0 [pid 4157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4158] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4157] <... futex resumed>) = 0 [pid 4157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4158] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4157] <... futex resumed>) = 0 [pid 4157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4158] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4157] <... futex resumed>) = 0 [pid 4157] exit_group(0) = ? [pid 4158] +++ exited with 0 +++ [pid 4157] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4157, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17888", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17888", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17888/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17888/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17888/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17888") = 0 mkdir("./17889", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4159 attached , child_tidptr=0x55558931b690) = 4159 [pid 4159] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4159] chdir("./17889") = 0 [pid 4159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4159] setpgid(0, 0) = 0 [pid 4159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4159] write(3, "1000", 4) = 4 [pid 4159] close(3) = 0 [pid 4159] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4159] write(1, "executing program\n", 18) = 18 [pid 4159] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4159] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4159] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4159] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4159] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4160 attached => {parent_tid=[4160]}, 88) = 4160 [pid 4159] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4160] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4160] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4159] <... futex resumed>) = 0 [pid 4159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4160] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4159] <... futex resumed>) = 0 [pid 4160] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4160] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4159] <... futex resumed>) = 0 [pid 4159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4160] write(-1, "0x0000000000000001", 18 [pid 4159] <... futex resumed>) = 0 [pid 4159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4160] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4159] <... futex resumed>) = 0 [pid 4159] exit_group(0) = ? [pid 4160] +++ exited with 0 +++ [pid 4159] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4159, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17889", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17889", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17889/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17889/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17889/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17889") = 0 mkdir("./17890", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4161 ./strace-static-x86_64: Process 4161 attached [pid 4161] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4161] chdir("./17890") = 0 [pid 4161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4161] setpgid(0, 0) = 0 [pid 4161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4161] write(3, "1000", 4) = 4 [pid 4161] close(3) = 0 [pid 4161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4161] write(1, "executing program\n", 18executing program ) = 18 [pid 4161] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4161] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4161] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4161] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4161] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4161] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4162 attached [pid 4162] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4162] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4162] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4161] <... clone3 resumed> => {parent_tid=[4162]}, 88) = 4162 [pid 4161] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4162] <... futex resumed>) = 0 [pid 4162] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4162] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4162] <... futex resumed>) = 0 [pid 4162] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4162] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4162] <... futex resumed>) = 0 [pid 4162] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4162] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4162] <... futex resumed>) = 0 [pid 4162] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4162] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4161] exit_group(0) = ? [pid 4162] <... futex resumed>) = ? [pid 4162] +++ exited with 0 +++ [pid 4161] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4161, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17890", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17890", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17890/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17890/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17890/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17890") = 0 mkdir("./17891", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4163 ./strace-static-x86_64: Process 4163 attached [pid 4163] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4163] chdir("./17891") = 0 [pid 4163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4163] setpgid(0, 0) = 0 [pid 4163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4163] write(3, "1000", 4) = 4 [pid 4163] close(3) = 0 [pid 4163] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4163] write(1, "executing program\n", 18) = 18 [pid 4163] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4163] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4163] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4163] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4163] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4164 attached => {parent_tid=[4164]}, 88) = 4164 [pid 4163] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4164] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4163] <... futex resumed>) = 0 [pid 4163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] <... futex resumed>) = 1 [pid 4164] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4163] <... futex resumed>) = 0 [pid 4164] <... futex resumed>) = 1 [pid 4163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4164] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4163] <... futex resumed>) = 0 [pid 4163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4163] <... futex resumed>) = 0 [pid 4164] <... futex resumed>) = 1 [pid 4163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4164] write(-1, "0x0000000000000001", 18 [pid 4163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4163] <... futex resumed>) = 0 [pid 4164] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4163] exit_group(0) = ? [pid 4164] <... futex resumed>) = 231 [pid 4164] +++ exited with 0 +++ [pid 4163] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4163, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17891", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17891", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17891/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17891/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17891/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17891") = 0 mkdir("./17892", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4165 ./strace-static-x86_64: Process 4165 attached [pid 4165] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4165] chdir("./17892") = 0 [pid 4165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4165] setpgid(0, 0) = 0 [pid 4165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4165] write(3, "1000", 4) = 4 [pid 4165] close(3) = 0 [pid 4165] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4165] write(1, "executing program\n", 18) = 18 [pid 4165] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4165] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4165] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4165] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4165] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4165] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4166]}, 88) = 4166 ./strace-static-x86_64: Process 4166 attached [pid 4165] rt_sigprocmask(SIG_SETMASK, [], [pid 4166] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4166] <... set_robust_list resumed>) = 0 [pid 4165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4166] rt_sigprocmask(SIG_SETMASK, [], [pid 4165] <... futex resumed>) = 0 [pid 4166] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4166] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4165] <... futex resumed>) = 0 [pid 4165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4166] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4165] <... futex resumed>) = 0 [pid 4165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4166] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4165] <... futex resumed>) = 0 [pid 4165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4166] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4165] <... futex resumed>) = 0 [pid 4165] exit_group(0) = ? [pid 4166] +++ exited with 0 +++ [pid 4165] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4165, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17892", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17892", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17892/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17892/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17892/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17892") = 0 mkdir("./17893", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4167 attached , child_tidptr=0x55558931b690) = 4167 [pid 4167] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4167] chdir("./17893") = 0 [pid 4167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4167] setpgid(0, 0) = 0 [pid 4167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4167] write(3, "1000", 4) = 4 [pid 4167] close(3) = 0 [pid 4167] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4167] write(1, "executing program\n", 18) = 18 [pid 4167] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4167] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4167] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4167] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4167] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4167] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4168 attached => {parent_tid=[4168]}, 88) = 4168 [pid 4167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4168] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4168] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4167] <... futex resumed>) = 0 [pid 4167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4168] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4167] <... futex resumed>) = 0 [pid 4167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4168] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4167] <... futex resumed>) = 0 [pid 4167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4168] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4167] <... futex resumed>) = 0 [pid 4167] exit_group(0) = ? [pid 4168] +++ exited with 0 +++ [pid 4167] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4167, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17893", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17893", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17893/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17893/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17893/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17893") = 0 mkdir("./17894", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4169 ./strace-static-x86_64: Process 4169 attached [pid 4169] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4169] chdir("./17894") = 0 [pid 4169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4169] setpgid(0, 0) = 0 [pid 4169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4169] write(3, "1000", 4) = 4 [pid 4169] close(3) = 0 [pid 4169] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4169] write(1, "executing program\n", 18) = 18 [pid 4169] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4169] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4169] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4169] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4169] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4170]}, 88) = 4170 [pid 4169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4170 attached [pid 4170] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4170] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4170] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4170] <... futex resumed>) = 1 [pid 4170] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4170] <... futex resumed>) = 1 [pid 4170] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4170] <... futex resumed>) = 1 [pid 4170] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] exit_group(0) = ? [pid 4170] <... futex resumed>) = ? [pid 4170] +++ exited with 0 +++ [pid 4169] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4169, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17894", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17894", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17894/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17894/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17894/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17894") = 0 mkdir("./17895", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4171 ./strace-static-x86_64: Process 4171 attached [pid 4171] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4171] chdir("./17895") = 0 [pid 4171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4171] setpgid(0, 0) = 0 [pid 4171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4171] write(3, "1000", 4) = 4 [pid 4171] close(3) = 0 [pid 4171] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4171] write(1, "executing program\n", 18executing program ) = 18 [pid 4171] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4171] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4171] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4171] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4171] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4171] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4172 attached [pid 4172] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4171] <... clone3 resumed> => {parent_tid=[4172]}, 88) = 4172 [pid 4171] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4172] <... futex resumed>) = 0 [pid 4172] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4172] <... futex resumed>) = 0 [pid 4172] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4172] <... futex resumed>) = 0 [pid 4172] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4172] <... futex resumed>) = 0 [pid 4172] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4171] exit_group(0) = ? [pid 4172] <... futex resumed>) = ? [pid 4172] +++ exited with 0 +++ [pid 4171] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4171, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17895", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17895", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17895/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17895/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17895/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17895") = 0 mkdir("./17896", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4173 ./strace-static-x86_64: Process 4173 attached [pid 4173] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4173] chdir("./17896") = 0 [pid 4173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4173] setpgid(0, 0) = 0 [pid 4173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4173] write(3, "1000", 4) = 4 [pid 4173] close(3) = 0 [pid 4173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4173] write(1, "executing program\n", 18executing program ) = 18 [pid 4173] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4173] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4173] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4173] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4173] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4173] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4174 attached [pid 4174] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4173] <... clone3 resumed> => {parent_tid=[4174]}, 88) = 4174 [pid 4174] <... set_robust_list resumed>) = 0 [pid 4174] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4174] <... futex resumed>) = 0 [pid 4174] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4174] <... futex resumed>) = 0 [pid 4174] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4174] <... futex resumed>) = 0 [pid 4174] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4173] <... futex resumed>) = 0 [pid 4173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4174] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4173] <... futex resumed>) = 0 [pid 4173] exit_group(0) = ? [pid 4174] +++ exited with 0 +++ [pid 4173] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4173, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17896", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17896", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17896/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17896/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17896/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17896") = 0 mkdir("./17897", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4175 ./strace-static-x86_64: Process 4175 attached [pid 4175] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4175] chdir("./17897") = 0 [pid 4175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4175] setpgid(0, 0) = 0 [pid 4175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4175] write(3, "1000", 4) = 4 [pid 4175] close(3) = 0 [pid 4175] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4175] write(1, "executing program\n", 18executing program ) = 18 [pid 4175] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4175] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4175] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4175] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4175] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4176]}, 88) = 4176 [pid 4175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4176 attached [pid 4176] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4176] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4176] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = 0 [pid 4175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4176] <... futex resumed>) = 1 [pid 4176] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = 0 [pid 4175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4176] <... futex resumed>) = 1 [pid 4176] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = 0 [pid 4175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4176] <... futex resumed>) = 1 [pid 4176] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = 0 [pid 4175] exit_group(0) = ? [pid 4176] <... futex resumed>) = ? [pid 4176] +++ exited with 0 +++ [pid 4175] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4175, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17897", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17897", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17897/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17897/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17897/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17897") = 0 mkdir("./17898", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4177 attached , child_tidptr=0x55558931b690) = 4177 [pid 4177] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4177] chdir("./17898") = 0 [pid 4177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4177] setpgid(0, 0) = 0 [pid 4177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4177] write(3, "1000", 4) = 4 [pid 4177] close(3) = 0 [pid 4177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4177] write(1, "executing program\n", 18executing program ) = 18 [pid 4177] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4177] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4177] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4177] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4177] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4178 attached [pid 4178] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4178] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4177] <... clone3 resumed> => {parent_tid=[4178]}, 88) = 4178 [pid 4177] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4178] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4178] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4178] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4178] write(-1, "0x0000000000000001", 18 [pid 4177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4178] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4177] exit_group(0) = ? [pid 4178] <... futex resumed>) = ? [pid 4178] +++ exited with 0 +++ [pid 4177] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4177, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17898", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17898", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17898/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17898/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17898/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17898") = 0 mkdir("./17899", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4179 attached , child_tidptr=0x55558931b690) = 4179 [pid 4179] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4179] chdir("./17899") = 0 [pid 4179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4179] setpgid(0, 0) = 0 [pid 4179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4179] write(3, "1000", 4) = 4 [pid 4179] close(3) = 0 [pid 4179] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4179] write(1, "executing program\n", 18) = 18 [pid 4179] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4179] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4179] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4179] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4179] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4180 attached [pid 4180] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4179] <... clone3 resumed> => {parent_tid=[4180]}, 88) = 4180 [pid 4179] rt_sigprocmask(SIG_SETMASK, [], [pid 4180] <... set_robust_list resumed>) = 0 [pid 4179] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4180] rt_sigprocmask(SIG_SETMASK, [], [pid 4179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4180] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4179] <... futex resumed>) = 0 [pid 4180] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4180] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4179] <... futex resumed>) = 0 [pid 4179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4180] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4179] <... futex resumed>) = 0 [pid 4179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4180] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4179] <... futex resumed>) = 0 [pid 4179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4180] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4179] <... futex resumed>) = 0 [pid 4179] exit_group(0) = ? [pid 4180] +++ exited with 0 +++ [pid 4179] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4179, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17899", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17899", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17899/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17899/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17899/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17899") = 0 mkdir("./17900", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4181 ./strace-static-x86_64: Process 4181 attached [pid 4181] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4181] chdir("./17900") = 0 [pid 4181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4181] setpgid(0, 0) = 0 [pid 4181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4181] write(3, "1000", 4) = 4 [pid 4181] close(3) = 0 [pid 4181] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4181] write(1, "executing program\n", 18executing program ) = 18 [pid 4181] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4181] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4181] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4181] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4181] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4182 attached => {parent_tid=[4182]}, 88) = 4182 [pid 4181] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4182] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4182] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4182] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4181] exit_group(0) = ? [pid 4182] <... futex resumed>) = ? [pid 4182] +++ exited with 0 +++ [pid 4181] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17900", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17900", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17900/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17900/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17900/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17900") = 0 mkdir("./17901", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4183 attached , child_tidptr=0x55558931b690) = 4183 [pid 4183] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4183] chdir("./17901") = 0 [pid 4183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4183] setpgid(0, 0) = 0 [pid 4183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4183] write(3, "1000", 4) = 4 [pid 4183] close(3) = 0 [pid 4183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4183] write(1, "executing program\n", 18executing program ) = 18 [pid 4183] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4183] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4183] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4183] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4183] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4183] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4184 attached => {parent_tid=[4184]}, 88) = 4184 [pid 4184] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4183] rt_sigprocmask(SIG_SETMASK, [], [pid 4184] <... set_robust_list resumed>) = 0 [pid 4183] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4184] rt_sigprocmask(SIG_SETMASK, [], [pid 4183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4184] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4183] <... futex resumed>) = 0 [pid 4184] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4184] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4183] <... futex resumed>) = 0 [pid 4183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4184] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4183] <... futex resumed>) = 0 [pid 4183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4184] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4183] <... futex resumed>) = 0 [pid 4183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4184] write(-1, "0x0000000000000001", 18 [pid 4183] <... futex resumed>) = 0 [pid 4183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4184] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4183] <... futex resumed>) = 0 [pid 4183] exit_group(0) = ? [pid 4184] +++ exited with 0 +++ [pid 4183] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4183, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17901", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17901", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17901/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17901/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17901/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17901") = 0 mkdir("./17902", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4185 ./strace-static-x86_64: Process 4185 attached [pid 4185] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4185] chdir("./17902") = 0 [pid 4185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4185] setpgid(0, 0) = 0 [pid 4185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4185] write(3, "1000", 4) = 4 [pid 4185] close(3) = 0 [pid 4185] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4185] write(1, "executing program\n", 18executing program ) = 18 [pid 4185] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4185] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4185] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4185] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4185] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4185] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4186 attached => {parent_tid=[4186]}, 88) = 4186 [pid 4185] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4186] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4186] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4185] <... futex resumed>) = 0 [pid 4186] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4185] <... futex resumed>) = 0 [pid 4186] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4186] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4185] <... futex resumed>) = 0 [pid 4185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4186] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4185] <... futex resumed>) = 0 [pid 4185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4186] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4185] <... futex resumed>) = 0 [pid 4185] exit_group(0) = ? [pid 4186] +++ exited with 0 +++ [pid 4185] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4185, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17902", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17902", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17902/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17902/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17902/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17902") = 0 mkdir("./17903", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4187 ./strace-static-x86_64: Process 4187 attached [pid 4187] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4187] chdir("./17903") = 0 [pid 4187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4187] setpgid(0, 0) = 0 [pid 4187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4187] write(3, "1000", 4) = 4 [pid 4187] close(3) = 0 [pid 4187] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4187] write(1, "executing program\n", 18) = 18 [pid 4187] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4187] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4187] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4187] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4187] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4187] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4188]}, 88) = 4188 [pid 4187] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4188 attached [pid 4188] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4188] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4188] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4187] <... futex resumed>) = 0 [pid 4188] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4188] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4188] <... futex resumed>) = 0 [pid 4187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4188] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4187] <... futex resumed>) = 0 [pid 4188] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4188] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4187] <... futex resumed>) = 0 [pid 4188] <... futex resumed>) = 1 [pid 4187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4188] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4188] <... futex resumed>) = 0 [pid 4187] exit_group(0 [pid 4188] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4187] <... exit_group resumed>) = ? [pid 4188] <... futex resumed>) = ? [pid 4188] +++ exited with 0 +++ [pid 4187] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4187, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17903", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17903", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17903/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17903/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17903/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17903") = 0 mkdir("./17904", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4189 ./strace-static-x86_64: Process 4189 attached [pid 4189] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4189] chdir("./17904") = 0 [pid 4189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4189] setpgid(0, 0) = 0 [pid 4189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4189] write(3, "1000", 4) = 4 [pid 4189] close(3) = 0 [pid 4189] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4189] write(1, "executing program\n", 18) = 18 [pid 4189] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4189] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4189] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4189] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4189] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4189] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4189] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4190 attached => {parent_tid=[4190]}, 88) = 4190 [pid 4189] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4190] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4190] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4190] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4189] <... futex resumed>) = 0 [pid 4189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4190] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4189] <... futex resumed>) = 0 [pid 4189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4190] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4189] <... futex resumed>) = 0 [pid 4189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4190] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4189] <... futex resumed>) = 0 [pid 4189] exit_group(0) = ? [pid 4190] +++ exited with 0 +++ [pid 4189] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4189, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17904", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17904", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17904/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17904/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17904/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17904") = 0 mkdir("./17905", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4191 ./strace-static-x86_64: Process 4191 attached [pid 4191] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4191] chdir("./17905") = 0 [pid 4191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4191] setpgid(0, 0) = 0 [pid 4191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4191] write(3, "1000", 4) = 4 [pid 4191] close(3) = 0 [pid 4191] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4191] write(1, "executing program\n", 18) = 18 [pid 4191] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4191] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4191] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4191] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4191] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4191] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4192]}, 88) = 4192 [pid 4191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4192 attached [pid 4192] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4192] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4191] <... futex resumed>) = 0 [pid 4191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4192] <... futex resumed>) = 1 [pid 4192] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4191] <... futex resumed>) = 0 [pid 4191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4192] <... futex resumed>) = 1 [pid 4192] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4191] <... futex resumed>) = 0 [pid 4191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4192] <... futex resumed>) = 1 [pid 4192] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4191] <... futex resumed>) = 0 [pid 4191] exit_group(0) = ? [pid 4192] <... futex resumed>) = ? [pid 4192] +++ exited with 0 +++ [pid 4191] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4191, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17905", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17905", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17905/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17905/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17905/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17905") = 0 mkdir("./17906", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4193 ./strace-static-x86_64: Process 4193 attached [pid 4193] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4193] chdir("./17906") = 0 [pid 4193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4193] setpgid(0, 0) = 0 [pid 4193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4193] write(3, "1000", 4) = 4 [pid 4193] close(3) = 0 [pid 4193] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4193] write(1, "executing program\n", 18executing program ) = 18 [pid 4193] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4193] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4193] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4193] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4193] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4194 attached => {parent_tid=[4194]}, 88) = 4194 [pid 4194] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4194] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4194] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4194] <... futex resumed>) = 0 [pid 4193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4194] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4194] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4194] <... futex resumed>) = 0 [pid 4194] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4194] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4194] <... futex resumed>) = 0 [pid 4194] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4194] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4194] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4194] <... futex resumed>) = 0 [pid 4194] write(-1, "0x0000000000000001", 18 [pid 4193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4194] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4194] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4193] exit_group(0) = ? [pid 4194] <... futex resumed>) = ? [pid 4194] +++ exited with 0 +++ [pid 4193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4193, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17906", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17906", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17906/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17906/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17906/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17906") = 0 mkdir("./17907", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4195 ./strace-static-x86_64: Process 4195 attached [pid 4195] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4195] chdir("./17907") = 0 [pid 4195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4195] setpgid(0, 0) = 0 [pid 4195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4195] write(3, "1000", 4) = 4 [pid 4195] close(3) = 0 [pid 4195] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4195] write(1, "executing program\n", 18executing program ) = 18 [pid 4195] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4195] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4195] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4195] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4195] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4195] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4196 attached => {parent_tid=[4196]}, 88) = 4196 [pid 4196] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4195] rt_sigprocmask(SIG_SETMASK, [], [pid 4196] <... set_robust_list resumed>) = 0 [pid 4195] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4196] rt_sigprocmask(SIG_SETMASK, [], [pid 4195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4195] <... futex resumed>) = 0 [pid 4195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4196] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4195] <... futex resumed>) = 0 [pid 4195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4196] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4195] <... futex resumed>) = 0 [pid 4195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4196] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4195] <... futex resumed>) = 0 [pid 4195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4196] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4195] <... futex resumed>) = 0 [pid 4195] exit_group(0) = ? [pid 4196] +++ exited with 0 +++ [pid 4195] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4195, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17907", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17907", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17907/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17907/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17907/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17907") = 0 mkdir("./17908", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4197 ./strace-static-x86_64: Process 4197 attached [pid 4197] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4197] chdir("./17908") = 0 [pid 4197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4197] setpgid(0, 0) = 0 [pid 4197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4197] write(3, "1000", 4) = 4 [pid 4197] close(3) = 0 [pid 4197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4197] write(1, "executing program\n", 18executing program ) = 18 [pid 4197] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4197] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4197] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4197] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4197] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4198]}, 88) = 4198 [pid 4197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4198 attached [pid 4198] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4198] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4198] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4198] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4197] <... futex resumed>) = 0 [pid 4197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4198] <... futex resumed>) = 0 [pid 4198] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4198] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4198] <... futex resumed>) = 0 [pid 4198] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4198] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4198] <... futex resumed>) = 0 [pid 4198] write(-1, "0x0000000000000001", 18 [pid 4197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4198] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4198] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4197] exit_group(0) = ? [pid 4198] <... futex resumed>) = ? [pid 4198] +++ exited with 0 +++ [pid 4197] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4197, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17908", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17908", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17908/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17908/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17908/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17908") = 0 mkdir("./17909", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4199 attached , child_tidptr=0x55558931b690) = 4199 [pid 4199] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4199] chdir("./17909") = 0 [pid 4199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4199] setpgid(0, 0) = 0 [pid 4199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4199] write(3, "1000", 4) = 4 [pid 4199] close(3) = 0 [pid 4199] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4199] write(1, "executing program\n", 18executing program ) = 18 [pid 4199] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4199] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4199] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4199] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4199] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4199] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4200 attached => {parent_tid=[4200]}, 88) = 4200 [pid 4200] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4200] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4199] rt_sigprocmask(SIG_SETMASK, [], [pid 4200] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4199] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4200] <... futex resumed>) = 0 [pid 4200] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4200] <... futex resumed>) = 0 [pid 4200] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4200] <... futex resumed>) = 0 [pid 4199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4200] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4200] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4200] <... futex resumed>) = 0 [pid 4200] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4200] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4200] <... futex resumed>) = 0 [pid 4199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4200] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4199] <... futex resumed>) = 0 [pid 4200] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4199] exit_group(0) = ? [pid 4200] <... futex resumed>) = ? [pid 4200] +++ exited with 0 +++ [pid 4199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4199, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17909", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17909", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17909/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17909/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17909/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17909") = 0 mkdir("./17910", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4201 ./strace-static-x86_64: Process 4201 attached [pid 4201] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4201] chdir("./17910") = 0 [pid 4201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4201] setpgid(0, 0) = 0 [pid 4201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4201] write(3, "1000", 4) = 4 [pid 4201] close(3) = 0 [pid 4201] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4201] write(1, "executing program\n", 18) = 18 [pid 4201] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4201] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4201] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4201] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4201] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4201] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4202]}, 88) = 4202 [pid 4201] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4202 attached [pid 4202] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4202] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4202] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4201] <... futex resumed>) = 0 [pid 4201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4202] <... futex resumed>) = 1 [pid 4202] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4201] <... futex resumed>) = 0 [pid 4201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4202] <... futex resumed>) = 1 [pid 4202] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4201] <... futex resumed>) = 0 [pid 4201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4202] <... futex resumed>) = 1 [pid 4202] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4201] <... futex resumed>) = 0 [pid 4201] exit_group(0) = ? [pid 4202] <... futex resumed>) = ? [pid 4202] +++ exited with 0 +++ [pid 4201] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4201, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17910", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17910", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17910/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17910/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17910/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17910") = 0 mkdir("./17911", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4203 ./strace-static-x86_64: Process 4203 attached [pid 4203] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4203] chdir("./17911") = 0 [pid 4203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4203] setpgid(0, 0) = 0 [pid 4203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4203] write(3, "1000", 4) = 4 [pid 4203] close(3) = 0 [pid 4203] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4203] write(1, "executing program\n", 18) = 18 [pid 4203] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4203] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4203] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4203] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4203] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4203] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4204 attached => {parent_tid=[4204]}, 88) = 4204 [pid 4203] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4204] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4204] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4203] <... futex resumed>) = 0 [pid 4203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4204] <... futex resumed>) = 1 [pid 4204] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4203] <... futex resumed>) = 0 [pid 4203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4204] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4203] <... futex resumed>) = 0 [pid 4203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4204] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4203] <... futex resumed>) = 0 [pid 4203] exit_group(0) = ? [pid 4204] +++ exited with 0 +++ [pid 4203] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4203, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17911", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17911", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17911/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17911/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17911/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17911") = 0 mkdir("./17912", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4205 attached , child_tidptr=0x55558931b690) = 4205 [pid 4205] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4205] chdir("./17912") = 0 [pid 4205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4205] setpgid(0, 0) = 0 [pid 4205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4205] write(3, "1000", 4) = 4 [pid 4205] close(3) = 0 [pid 4205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4205] write(1, "executing program\n", 18executing program ) = 18 [pid 4205] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4205] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4205] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4205] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4205] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4206 attached => {parent_tid=[4206]}, 88) = 4206 [pid 4206] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4205] rt_sigprocmask(SIG_SETMASK, [], [pid 4206] <... set_robust_list resumed>) = 0 [pid 4205] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4206] rt_sigprocmask(SIG_SETMASK, [], [pid 4205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4205] <... futex resumed>) = 0 [pid 4206] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4206] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4206] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] <... futex resumed>) = 0 [pid 4205] <... futex resumed>) = 1 [pid 4206] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4206] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] <... futex resumed>) = 0 [pid 4205] <... futex resumed>) = 1 [pid 4206] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4206] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] <... futex resumed>) = 0 [pid 4205] <... futex resumed>) = 1 [pid 4206] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4206] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] exit_group(0 [pid 4206] <... futex resumed>) = ? [pid 4205] <... exit_group resumed>) = ? [pid 4206] +++ exited with 0 +++ [pid 4205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4205, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17912", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17912", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17912/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17912/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17912/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17912") = 0 mkdir("./17913", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4207 ./strace-static-x86_64: Process 4207 attached [pid 4207] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4207] chdir("./17913") = 0 [pid 4207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4207] setpgid(0, 0) = 0 [pid 4207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4207] write(3, "1000", 4) = 4 [pid 4207] close(3) = 0 [pid 4207] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4207] write(1, "executing program\n", 18executing program ) = 18 [pid 4207] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4207] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4207] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4207] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4207] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4207] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4208 attached [pid 4208] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4208] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4207] <... clone3 resumed> => {parent_tid=[4208]}, 88) = 4208 [pid 4207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4208] <... futex resumed>) = 0 [pid 4208] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4208] <... futex resumed>) = 0 [pid 4208] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4208] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4207] <... futex resumed>) = 0 [pid 4208] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4208] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4207] <... futex resumed>) = 0 [pid 4208] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4208] <... futex resumed>) = 0 [pid 4207] <... futex resumed>) = 1 [pid 4207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4208] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4208] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4207] <... futex resumed>) = 0 [pid 4207] exit_group(0) = ? [pid 4208] <... futex resumed>) = ? [pid 4208] +++ exited with 0 +++ [pid 4207] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4207, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17913", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17913", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17913/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17913/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17913/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17913") = 0 mkdir("./17914", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4209 ./strace-static-x86_64: Process 4209 attached [pid 4209] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4209] chdir("./17914") = 0 [pid 4209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4209] setpgid(0, 0) = 0 [pid 4209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4209] write(3, "1000", 4) = 4 [pid 4209] close(3) = 0 [pid 4209] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4209] write(1, "executing program\n", 18) = 18 [pid 4209] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4209] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4209] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4209] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4209] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4209] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4210 attached => {parent_tid=[4210]}, 88) = 4210 [pid 4210] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4210] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4209] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4210] <... futex resumed>) = 0 [pid 4210] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4210] <... futex resumed>) = 0 [pid 4210] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4210] <... futex resumed>) = 0 [pid 4210] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4210] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4209] <... futex resumed>) = 0 [pid 4209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4210] write(-1, "0x0000000000000001", 18 [pid 4209] <... futex resumed>) = 0 [pid 4210] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4209] <... futex resumed>) = 0 [pid 4210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4209] exit_group(0) = ? [pid 4210] <... futex resumed>) = ? [pid 4210] +++ exited with 0 +++ [pid 4209] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4209, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17914", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17914", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17914/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17914/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17914/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17914") = 0 mkdir("./17915", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4211 attached , child_tidptr=0x55558931b690) = 4211 [pid 4211] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4211] chdir("./17915") = 0 [pid 4211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4211] setpgid(0, 0) = 0 [pid 4211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4211] write(3, "1000", 4) = 4 [pid 4211] close(3) = 0 [pid 4211] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4211] write(1, "executing program\n", 18) = 18 [pid 4211] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4211] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4211] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4211] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4211] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4212 attached => {parent_tid=[4212]}, 88) = 4212 [pid 4212] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4212] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4212] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4211] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4212] <... futex resumed>) = 0 [pid 4212] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4212] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4212] <... futex resumed>) = 0 [pid 4212] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4212] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4212] <... futex resumed>) = 0 [pid 4211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4212] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4211] <... futex resumed>) = 0 [pid 4211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4212] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4212] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4211] <... futex resumed>) = 0 [pid 4211] exit_group(0) = ? [pid 4212] <... futex resumed>) = ? [pid 4212] +++ exited with 0 +++ [pid 4211] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4211, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17915", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17915", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17915/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17915/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17915/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17915") = 0 mkdir("./17916", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4213 ./strace-static-x86_64: Process 4213 attached [pid 4213] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4213] chdir("./17916") = 0 [pid 4213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4213] setpgid(0, 0) = 0 [pid 4213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4213] write(3, "1000", 4) = 4 [pid 4213] close(3) = 0 [pid 4213] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4213] write(1, "executing program\n", 18executing program ) = 18 [pid 4213] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4213] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4213] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4213] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4213] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4213] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4214 attached => {parent_tid=[4214]}, 88) = 4214 [pid 4214] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4214] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4213] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4214] <... futex resumed>) = 0 [pid 4214] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4214] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4214] <... futex resumed>) = 0 [pid 4214] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4214] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4214] <... futex resumed>) = 0 [pid 4214] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4214] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4214] <... futex resumed>) = 0 [pid 4213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4214] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4213] <... futex resumed>) = 0 [pid 4214] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4213] exit_group(0) = ? [pid 4214] <... futex resumed>) = ? [pid 4214] +++ exited with 0 +++ [pid 4213] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4213, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17916", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17916", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17916/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17916/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17916/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17916") = 0 mkdir("./17917", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4215 ./strace-static-x86_64: Process 4215 attached [pid 4215] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4215] chdir("./17917") = 0 [pid 4215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4215] setpgid(0, 0) = 0 [pid 4215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4215] write(3, "1000", 4) = 4 [pid 4215] close(3) = 0 [pid 4215] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4215] write(1, "executing program\n", 18) = 18 [pid 4215] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4215] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4215] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4215] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4215] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4215] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4216 attached [pid 4216] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4216] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4216] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4215] <... clone3 resumed> => {parent_tid=[4216]}, 88) = 4216 [pid 4215] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4216] <... futex resumed>) = 0 [pid 4215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4216] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4215] <... futex resumed>) = 0 [pid 4216] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4216] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4215] <... futex resumed>) = 0 [pid 4216] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4216] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4215] <... futex resumed>) = 0 [pid 4215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4216] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4215] <... futex resumed>) = 0 [pid 4216] <... futex resumed>) = 1 [pid 4215] exit_group(0) = ? [pid 4216] +++ exited with 0 +++ [pid 4215] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4215, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17917", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17917", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17917/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17917/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17917/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17917") = 0 mkdir("./17918", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4217 ./strace-static-x86_64: Process 4217 attached [pid 4217] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4217] chdir("./17918") = 0 [pid 4217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4217] setpgid(0, 0) = 0 [pid 4217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4217] write(3, "1000", 4) = 4 [pid 4217] close(3) = 0 [pid 4217] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4217] write(1, "executing program\n", 18) = 18 [pid 4217] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4217] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4217] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4217] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4217] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4218]}, 88) = 4218 [pid 4217] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4218 attached [pid 4218] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4218] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4218] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4217] <... futex resumed>) = 0 [pid 4217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4218] <... futex resumed>) = 1 [pid 4218] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4217] <... futex resumed>) = 0 [pid 4217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4218] <... futex resumed>) = 1 [pid 4218] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4217] <... futex resumed>) = 0 [pid 4217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4218] <... futex resumed>) = 1 [pid 4218] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4217] <... futex resumed>) = 0 [pid 4217] exit_group(0 [pid 4218] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4217] <... exit_group resumed>) = ? [pid 4218] <... futex resumed>) = ? [pid 4218] +++ exited with 0 +++ [pid 4217] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4217, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17918", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17918", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17918/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17918/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17918/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17918") = 0 mkdir("./17919", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4219 ./strace-static-x86_64: Process 4219 attached [pid 4219] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4219] chdir("./17919") = 0 [pid 4219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4219] setpgid(0, 0) = 0 [pid 4219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4219] write(3, "1000", 4) = 4 [pid 4219] close(3) = 0 [pid 4219] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4219] write(1, "executing program\n", 18executing program ) = 18 [pid 4219] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4219] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4219] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4219] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4219] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4219] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4220 attached => {parent_tid=[4220]}, 88) = 4220 [pid 4220] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4220] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4220] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4220] <... futex resumed>) = 0 [pid 4220] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4220] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4220] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4220] <... futex resumed>) = 0 [pid 4219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4220] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4220] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4219] <... futex resumed>) = 0 [pid 4219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4220] <... futex resumed>) = 0 [pid 4219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4220] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4219] <... futex resumed>) = 0 [pid 4219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4220] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4219] <... futex resumed>) = 0 [pid 4219] exit_group(0) = ? [pid 4220] <... futex resumed>) = ? [pid 4220] +++ exited with 0 +++ [pid 4219] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4219, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17919", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17919", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17919/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17919/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17919/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17919") = 0 mkdir("./17920", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4221 ./strace-static-x86_64: Process 4221 attached [pid 4221] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4221] chdir("./17920") = 0 [pid 4221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4221] setpgid(0, 0) = 0 [pid 4221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4221] write(3, "1000", 4) = 4 [pid 4221] close(3) = 0 [pid 4221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4221] write(1, "executing program\n", 18executing program ) = 18 [pid 4221] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4221] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4221] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4221] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4221] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4221] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4222 attached => {parent_tid=[4222]}, 88) = 4222 [pid 4222] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4222] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4221] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4222] <... futex resumed>) = 0 [pid 4222] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4222] <... futex resumed>) = 0 [pid 4222] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4222] <... futex resumed>) = 0 [pid 4222] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4222] <... futex resumed>) = 0 [pid 4222] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4221] exit_group(0) = ? [pid 4222] <... futex resumed>) = ? [pid 4222] +++ exited with 0 +++ [pid 4221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4221, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- umount2("./17920", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17920", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17920/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17920/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17920/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17920") = 0 mkdir("./17921", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4223 ./strace-static-x86_64: Process 4223 attached [pid 4223] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4223] chdir("./17921") = 0 [pid 4223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4223] setpgid(0, 0) = 0 [pid 4223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4223] write(3, "1000", 4) = 4 [pid 4223] close(3) = 0 [pid 4223] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4223] write(1, "executing program\n", 18executing program ) = 18 [pid 4223] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4223] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4223] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4223] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4223] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4223] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4224 attached [pid 4224] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4223] <... clone3 resumed> => {parent_tid=[4224]}, 88) = 4224 [pid 4224] <... set_robust_list resumed>) = 0 [pid 4224] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4224] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4224] <... futex resumed>) = 0 [pid 4224] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4224] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4224] <... futex resumed>) = 0 [pid 4224] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4224] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4224] <... futex resumed>) = 0 [pid 4224] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4224] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4224] <... futex resumed>) = 0 [pid 4223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4224] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4223] <... futex resumed>) = 0 [pid 4224] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] exit_group(0) = ? [pid 4224] <... futex resumed>) = ? [pid 4224] +++ exited with 0 +++ [pid 4223] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4223, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17921", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17921", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17921/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17921/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17921/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17921") = 0 mkdir("./17922", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4225 ./strace-static-x86_64: Process 4225 attached [pid 4225] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4225] chdir("./17922") = 0 [pid 4225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4225] setpgid(0, 0) = 0 [pid 4225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4225] write(3, "1000", 4) = 4 [pid 4225] close(3) = 0 [pid 4225] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4225] write(1, "executing program\n", 18executing program ) = 18 [pid 4225] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4225] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4225] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4225] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4225] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4225] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4225] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4226 attached => {parent_tid=[4226]}, 88) = 4226 [pid 4226] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4226] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4226] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4225] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4226] <... futex resumed>) = 0 [pid 4226] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4226] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4226] <... futex resumed>) = 0 [pid 4226] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4226] <... futex resumed>) = 0 [pid 4226] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4226] <... futex resumed>) = 0 [pid 4225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4226] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4225] <... futex resumed>) = 0 [pid 4226] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4225] exit_group(0) = ? [pid 4226] <... futex resumed>) = ? [pid 4226] +++ exited with 0 +++ [pid 4225] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4225, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17922", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17922", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17922/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17922/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17922/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17922") = 0 mkdir("./17923", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4227 ./strace-static-x86_64: Process 4227 attached [pid 4227] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4227] chdir("./17923") = 0 [pid 4227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4227] setpgid(0, 0) = 0 [pid 4227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4227] write(3, "1000", 4) = 4 [pid 4227] close(3) = 0 [pid 4227] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4227] write(1, "executing program\n", 18) = 18 [pid 4227] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4227] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4227] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4227] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4227] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4227] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4228 attached [pid 4228] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4228] rt_sigprocmask(SIG_SETMASK, [], [pid 4227] <... clone3 resumed> => {parent_tid=[4228]}, 88) = 4228 [pid 4228] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4228] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4227] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4228] <... futex resumed>) = 0 [pid 4228] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4228] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4228] <... futex resumed>) = 0 [pid 4227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4228] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4227] <... futex resumed>) = 0 [pid 4228] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4227] <... futex resumed>) = 0 [pid 4228] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4228] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4228] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4227] <... futex resumed>) = 0 [pid 4228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4228] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4228] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4227] <... futex resumed>) = 0 [pid 4227] exit_group(0) = ? [pid 4228] <... futex resumed>) = ? [pid 4228] +++ exited with 0 +++ [pid 4227] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4227, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17923", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17923", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17923/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17923/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17923/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17923") = 0 mkdir("./17924", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4229 ./strace-static-x86_64: Process 4229 attached [pid 4229] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4229] chdir("./17924") = 0 [pid 4229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4229] setpgid(0, 0) = 0 [pid 4229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4229] write(3, "1000", 4) = 4 [pid 4229] close(3) = 0 [pid 4229] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4229] write(1, "executing program\n", 18executing program ) = 18 [pid 4229] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4229] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4229] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4229] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4229] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4229] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4230 attached => {parent_tid=[4230]}, 88) = 4230 [pid 4230] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4230] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4229] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4230] <... futex resumed>) = 0 [pid 4230] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4230] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4230] <... futex resumed>) = 0 [pid 4230] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4230] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4230] <... futex resumed>) = 0 [pid 4230] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4230] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4230] <... futex resumed>) = 0 [pid 4229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4230] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4230] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4229] <... futex resumed>) = 0 [pid 4229] exit_group(0) = ? [pid 4230] <... futex resumed>) = ? [pid 4230] +++ exited with 0 +++ [pid 4229] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4229, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17924", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17924", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17924/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17924/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17924/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17924") = 0 mkdir("./17925", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4231 ./strace-static-x86_64: Process 4231 attached [pid 4231] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4231] chdir("./17925") = 0 [pid 4231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4231] setpgid(0, 0) = 0 [pid 4231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4231] write(3, "1000", 4) = 4 [pid 4231] close(3) = 0 [pid 4231] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4231] write(1, "executing program\n", 18executing program ) = 18 [pid 4231] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4231] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4231] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4231] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4231] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4231] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4232 attached => {parent_tid=[4232]}, 88) = 4232 [pid 4232] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4232] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4232] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4232] <... futex resumed>) = 0 [pid 4232] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4232] <... futex resumed>) = 0 [pid 4232] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4232] <... futex resumed>) = 0 [pid 4232] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4232] <... futex resumed>) = 0 [pid 4231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4232] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4231] <... futex resumed>) = 0 [pid 4232] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4231] exit_group(0) = ? [pid 4232] <... futex resumed>) = ? [pid 4232] +++ exited with 0 +++ [pid 4231] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4231, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17925", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17925", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17925/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17925/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17925/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17925") = 0 mkdir("./17926", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4233 ./strace-static-x86_64: Process 4233 attached [pid 4233] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4233] chdir("./17926") = 0 [pid 4233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4233] setpgid(0, 0) = 0 [pid 4233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4233] write(3, "1000", 4) = 4 [pid 4233] close(3) = 0 [pid 4233] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4233] write(1, "executing program\n", 18executing program ) = 18 [pid 4233] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4233] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4233] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4233] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4233] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4233] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4234 attached => {parent_tid=[4234]}, 88) = 4234 [pid 4234] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4233] rt_sigprocmask(SIG_SETMASK, [], [pid 4234] <... set_robust_list resumed>) = 0 [pid 4233] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4234] rt_sigprocmask(SIG_SETMASK, [], [pid 4233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4234] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4233] <... futex resumed>) = 0 [pid 4233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4234] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4233] <... futex resumed>) = 0 [pid 4234] <... futex resumed>) = 1 [pid 4233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4234] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4233] <... futex resumed>) = 0 [pid 4233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4234] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4233] <... futex resumed>) = 0 [pid 4234] <... futex resumed>) = 1 [pid 4233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4234] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4233] <... futex resumed>) = 0 [pid 4234] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4234] <... futex resumed>) = 0 [pid 4233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4234] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4233] <... futex resumed>) = 0 [pid 4234] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4233] exit_group(0) = ? [pid 4234] <... futex resumed>) = 231 [pid 4234] +++ exited with 0 +++ [pid 4233] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4233, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17926", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17926", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17926/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17926/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17926/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17926") = 0 mkdir("./17927", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4235 ./strace-static-x86_64: Process 4235 attached [pid 4235] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4235] chdir("./17927") = 0 [pid 4235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4235] setpgid(0, 0) = 0 [pid 4235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4235] write(3, "1000", 4) = 4 [pid 4235] close(3) = 0 [pid 4235] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4235] write(1, "executing program\n", 18executing program ) = 18 [pid 4235] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4235] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4235] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4235] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4235] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4235] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4236 attached => {parent_tid=[4236]}, 88) = 4236 [pid 4236] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4235] rt_sigprocmask(SIG_SETMASK, [], [pid 4236] <... set_robust_list resumed>) = 0 [pid 4236] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4236] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4236] <... futex resumed>) = 0 [pid 4236] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4236] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4236] <... futex resumed>) = 0 [pid 4236] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4236] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4236] <... futex resumed>) = 0 [pid 4236] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4236] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4236] <... futex resumed>) = 0 [pid 4235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4236] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4235] <... futex resumed>) = 0 [pid 4236] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] exit_group(0) = ? [pid 4236] <... futex resumed>) = ? [pid 4236] +++ exited with 0 +++ [pid 4235] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4235, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17927", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17927", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17927/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17927/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17927/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17927") = 0 mkdir("./17928", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4237 ./strace-static-x86_64: Process 4237 attached [pid 4237] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4237] chdir("./17928") = 0 [pid 4237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4237] setpgid(0, 0) = 0 [pid 4237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4237] write(3, "1000", 4) = 4 [pid 4237] close(3) = 0 [pid 4237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4237] write(1, "executing program\n", 18executing program ) = 18 [pid 4237] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4237] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4237] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4237] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4237] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4237] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4238 attached => {parent_tid=[4238]}, 88) = 4238 [pid 4238] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4237] rt_sigprocmask(SIG_SETMASK, [], [pid 4238] <... set_robust_list resumed>) = 0 [pid 4238] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4237] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4238] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4238] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4238] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4238] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4237] <... futex resumed>) = 0 [pid 4238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4237] exit_group(0) = ? [pid 4238] <... futex resumed>) = ? [pid 4238] +++ exited with 0 +++ [pid 4237] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4237, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17928", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17928", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17928/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17928/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17928/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17928") = 0 mkdir("./17929", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4239 ./strace-static-x86_64: Process 4239 attached [pid 4239] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4239] chdir("./17929") = 0 [pid 4239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4239] setpgid(0, 0) = 0 [pid 4239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4239] write(3, "1000", 4) = 4 [pid 4239] close(3) = 0 [pid 4239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4239] write(1, "executing program\n", 18executing program ) = 18 [pid 4239] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4239] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4239] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4239] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4239] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4239] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4240 attached => {parent_tid=[4240]}, 88) = 4240 [pid 4240] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4240] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4240] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4240] <... futex resumed>) = 0 [pid 4240] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4240] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4240] <... futex resumed>) = 0 [pid 4240] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4240] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4240] <... futex resumed>) = 0 [pid 4240] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4240] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4240] <... futex resumed>) = 0 [pid 4239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4240] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4239] <... futex resumed>) = 0 [pid 4240] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4239] exit_group(0) = ? [pid 4240] <... futex resumed>) = ? [pid 4240] +++ exited with 0 +++ [pid 4239] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4239, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17929", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17929", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17929/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17929/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17929/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17929") = 0 mkdir("./17930", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4241 ./strace-static-x86_64: Process 4241 attached [pid 4241] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4241] chdir("./17930") = 0 [pid 4241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4241] setpgid(0, 0) = 0 [pid 4241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4241] write(3, "1000", 4) = 4 [pid 4241] close(3) = 0 [pid 4241] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4241] write(1, "executing program\n", 18executing program ) = 18 [pid 4241] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4241] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4241] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4241] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4241] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4242 attached [pid 4242] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4242] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4242] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4241] <... clone3 resumed> => {parent_tid=[4242]}, 88) = 4242 [pid 4241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4242] <... futex resumed>) = 0 [pid 4242] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4242] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4242] <... futex resumed>) = 0 [pid 4242] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4242] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4242] <... futex resumed>) = 0 [pid 4242] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4242] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4242] <... futex resumed>) = 0 [pid 4241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4242] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4241] <... futex resumed>) = 0 [pid 4242] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4241] exit_group(0) = ? [pid 4242] <... futex resumed>) = ? [pid 4242] +++ exited with 0 +++ [pid 4241] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4241, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17930", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17930", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17930/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17930/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17930/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17930") = 0 mkdir("./17931", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4243 ./strace-static-x86_64: Process 4243 attached [pid 4243] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4243] chdir("./17931") = 0 [pid 4243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4243] setpgid(0, 0) = 0 [pid 4243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4243] write(3, "1000", 4) = 4 [pid 4243] close(3) = 0 [pid 4243] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4243] write(1, "executing program\n", 18executing program ) = 18 [pid 4243] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4243] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4243] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4243] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4243] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4243] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4244 attached [pid 4244] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4244] rt_sigprocmask(SIG_SETMASK, [], [pid 4243] <... clone3 resumed> => {parent_tid=[4244]}, 88) = 4244 [pid 4244] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4243] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4244] <... futex resumed>) = 0 [pid 4244] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4244] <... futex resumed>) = 0 [pid 4244] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4244] <... futex resumed>) = 0 [pid 4244] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4244] <... futex resumed>) = 0 [pid 4243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4244] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4243] <... futex resumed>) = 0 [pid 4244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4243] exit_group(0) = ? [pid 4244] <... futex resumed>) = ? [pid 4244] +++ exited with 0 +++ [pid 4243] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4243, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17931", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17931", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17931/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17931/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17931/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17931") = 0 mkdir("./17932", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4245 ./strace-static-x86_64: Process 4245 attached [pid 4245] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4245] chdir("./17932") = 0 [pid 4245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4245] setpgid(0, 0) = 0 [pid 4245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4245] write(3, "1000", 4) = 4 [pid 4245] close(3) = 0 [pid 4245] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4245] write(1, "executing program\n", 18) = 18 [pid 4245] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4245] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4245] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4245] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4245] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4245] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4246 attached => {parent_tid=[4246]}, 88) = 4246 [pid 4246] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4246] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4246] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4245] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4246] <... futex resumed>) = 0 [pid 4246] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4246] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4246] <... futex resumed>) = 0 [pid 4246] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4246] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4246] <... futex resumed>) = 0 [pid 4246] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4246] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4246] <... futex resumed>) = 0 [pid 4245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4246] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4245] <... futex resumed>) = 0 [pid 4246] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4245] exit_group(0) = ? [pid 4246] <... futex resumed>) = ? [pid 4246] +++ exited with 0 +++ [pid 4245] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4245, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17932", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17932", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17932/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17932/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17932/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17932") = 0 mkdir("./17933", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4247 ./strace-static-x86_64: Process 4247 attached [pid 4247] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4247] chdir("./17933") = 0 [pid 4247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4247] setpgid(0, 0) = 0 [pid 4247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4247] write(3, "1000", 4) = 4 [pid 4247] close(3) = 0 [pid 4247] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4247] write(1, "executing program\n", 18executing program ) = 18 [pid 4247] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4247] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4247] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4247] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4247] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4247] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4248 attached => {parent_tid=[4248]}, 88) = 4248 [pid 4248] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4247] rt_sigprocmask(SIG_SETMASK, [], [pid 4248] <... set_robust_list resumed>) = 0 [pid 4247] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4248] rt_sigprocmask(SIG_SETMASK, [], [pid 4247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4248] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4247] <... futex resumed>) = 0 [pid 4247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4248] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4247] <... futex resumed>) = 0 [pid 4248] <... futex resumed>) = 1 [pid 4247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4248] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4247] <... futex resumed>) = 0 [pid 4247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4248] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4247] <... futex resumed>) = 0 [pid 4248] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4247] <... futex resumed>) = 0 [pid 4248] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4248] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4247] <... futex resumed>) = 0 [pid 4248] <... futex resumed>) = 1 [pid 4247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4248] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4247] <... futex resumed>) = 0 [pid 4248] <... futex resumed>) = 1 [pid 4248] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4247] exit_group(0) = ? [pid 4248] <... futex resumed>) = 231 [pid 4248] +++ exited with 0 +++ [pid 4247] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4247, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17933", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17933", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17933/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17933/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17933/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17933") = 0 mkdir("./17934", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4249 ./strace-static-x86_64: Process 4249 attached [pid 4249] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4249] chdir("./17934") = 0 [pid 4249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4249] setpgid(0, 0) = 0 [pid 4249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4249] write(3, "1000", 4) = 4 [pid 4249] close(3) = 0 [pid 4249] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4249] write(1, "executing program\n", 18executing program ) = 18 [pid 4249] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4249] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4249] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4249] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4249] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4249] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4250 attached => {parent_tid=[4250]}, 88) = 4250 [pid 4250] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4249] rt_sigprocmask(SIG_SETMASK, [], [pid 4250] <... set_robust_list resumed>) = 0 [pid 4249] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4250] rt_sigprocmask(SIG_SETMASK, [], [pid 4249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4250] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4249] <... futex resumed>) = 0 [pid 4249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4250] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4249] <... futex resumed>) = 0 [pid 4249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4250] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4249] <... futex resumed>) = 0 [pid 4249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4250] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4249] <... futex resumed>) = 0 [pid 4249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4250] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4249] <... futex resumed>) = 0 [pid 4249] exit_group(0) = ? [pid 4250] +++ exited with 0 +++ [pid 4249] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4249, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17934", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17934", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17934/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17934/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17934/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17934") = 0 mkdir("./17935", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4251 ./strace-static-x86_64: Process 4251 attached [pid 4251] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4251] chdir("./17935") = 0 [pid 4251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4251] setpgid(0, 0) = 0 [pid 4251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4251] write(3, "1000", 4) = 4 [pid 4251] close(3) = 0 [pid 4251] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4251] write(1, "executing program\n", 18executing program ) = 18 [pid 4251] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4251] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4251] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4251] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4251] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4251] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4252 attached => {parent_tid=[4252]}, 88) = 4252 [pid 4252] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4252] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4252] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4251] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4252] <... futex resumed>) = 0 [pid 4251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4252] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4252] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4251] <... futex resumed>) = 0 [pid 4251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4252] <... futex resumed>) = 0 [pid 4252] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4252] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4252] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4251] <... futex resumed>) = 0 [pid 4251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4252] <... futex resumed>) = 0 [pid 4251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4252] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4251] <... futex resumed>) = 0 [pid 4252] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4252] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4251] <... futex resumed>) = 0 [pid 4252] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4251] exit_group(0) = ? [pid 4252] <... futex resumed>) = 231 [pid 4252] +++ exited with 0 +++ [pid 4251] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4251, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17935", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17935", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17935/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17935/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17935/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17935") = 0 mkdir("./17936", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4253 ./strace-static-x86_64: Process 4253 attached [pid 4253] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4253] chdir("./17936") = 0 [pid 4253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4253] setpgid(0, 0) = 0 [pid 4253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4253] write(3, "1000", 4) = 4 [pid 4253] close(3) = 0 [pid 4253] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4253] write(1, "executing program\n", 18) = 18 [pid 4253] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4253] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4253] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4253] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4253] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4254 attached => {parent_tid=[4254]}, 88) = 4254 [pid 4254] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4254] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4254] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4253] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4254] <... futex resumed>) = 0 [pid 4254] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4254] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4254] <... futex resumed>) = 0 [pid 4253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4253] <... futex resumed>) = 0 [pid 4254] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4253] <... futex resumed>) = 0 [pid 4253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4253] <... futex resumed>) = 0 [pid 4254] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4253] exit_group(0) = ? [pid 4254] <... futex resumed>) = ? [pid 4254] +++ exited with 0 +++ [pid 4253] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4253, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17936", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17936", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17936/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17936/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17936/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17936") = 0 mkdir("./17937", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4255 attached , child_tidptr=0x55558931b690) = 4255 [pid 4255] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4255] chdir("./17937") = 0 [pid 4255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4255] setpgid(0, 0) = 0 [pid 4255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4255] write(3, "1000", 4) = 4 [pid 4255] close(3) = 0 [pid 4255] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4255] write(1, "executing program\n", 18) = 18 [pid 4255] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4255] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4255] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4256 attached [pid 4256] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4256] rt_sigprocmask(SIG_SETMASK, [], [pid 4255] <... clone3 resumed> => {parent_tid=[4256]}, 88) = 4256 [pid 4256] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4256] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4256] <... futex resumed>) = 0 [pid 4256] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4256] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4256] <... futex resumed>) = 0 [pid 4256] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4256] <... futex resumed>) = 0 [pid 4255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4256] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4255] <... futex resumed>) = 0 [pid 4255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4256] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4255] <... futex resumed>) = 0 [pid 4256] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4255] exit_group(0) = ? [pid 4256] <... futex resumed>) = ? [pid 4256] +++ exited with 0 +++ [pid 4255] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4255, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17937", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17937", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17937/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17937/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17937/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17937") = 0 mkdir("./17938", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4257 ./strace-static-x86_64: Process 4257 attached [pid 4257] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4257] chdir("./17938") = 0 [pid 4257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4257] setpgid(0, 0) = 0 [pid 4257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4257] write(3, "1000", 4) = 4 [pid 4257] close(3) = 0 [pid 4257] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4257] write(1, "executing program\n", 18) = 18 [pid 4257] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4257] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4257] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4257] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4258 attached => {parent_tid=[4258]}, 88) = 4258 [pid 4258] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4258] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4257] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4258] <... futex resumed>) = 0 [pid 4257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4258] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4258] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4258] <... futex resumed>) = 0 [pid 4257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4258] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4257] <... futex resumed>) = 0 [pid 4257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4258] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4257] <... futex resumed>) = 0 [pid 4257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4258] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4257] <... futex resumed>) = 0 [pid 4257] exit_group(0) = ? [pid 4258] +++ exited with 0 +++ [pid 4257] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4257, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17938", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17938", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17938/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17938/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17938/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17938") = 0 mkdir("./17939", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4259 ./strace-static-x86_64: Process 4259 attached [pid 4259] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4259] chdir("./17939") = 0 [pid 4259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4259] setpgid(0, 0) = 0 [pid 4259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4259] write(3, "1000", 4) = 4 [pid 4259] close(3) = 0 [pid 4259] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4259] write(1, "executing program\n", 18executing program ) = 18 [pid 4259] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4259] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4259] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4259] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4259] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4260 attached => {parent_tid=[4260]}, 88) = 4260 [pid 4260] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4260] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4260] <... futex resumed>) = 0 [pid 4260] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4260] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4260] <... futex resumed>) = 0 [pid 4260] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4260] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4260] <... futex resumed>) = 0 [pid 4259] <... futex resumed>) = 1 [pid 4260] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4260] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4260] <... futex resumed>) = 0 [pid 4259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4260] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4260] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4259] <... futex resumed>) = 0 [pid 4259] exit_group(0) = ? [pid 4260] <... futex resumed>) = ? [pid 4260] +++ exited with 0 +++ [pid 4259] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4259, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17939", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17939", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17939/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17939/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17939/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17939") = 0 mkdir("./17940", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4261 ./strace-static-x86_64: Process 4261 attached [pid 4261] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4261] chdir("./17940") = 0 [pid 4261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4261] setpgid(0, 0) = 0 [pid 4261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4261] write(3, "1000", 4) = 4 [pid 4261] close(3) = 0 [pid 4261] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4261] write(1, "executing program\n", 18executing program ) = 18 [pid 4261] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4261] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4261] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4261] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4261] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4261] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4261] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4262 attached => {parent_tid=[4262]}, 88) = 4262 [pid 4262] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4262] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4262] <... futex resumed>) = 0 [pid 4262] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4262] <... futex resumed>) = 0 [pid 4262] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4262] <... futex resumed>) = 0 [pid 4262] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4262] <... futex resumed>) = 0 [pid 4261] <... futex resumed>) = 1 [pid 4261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4262] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4261] <... futex resumed>) = 0 [pid 4262] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4261] exit_group(0) = ? [pid 4262] <... futex resumed>) = ? [pid 4262] +++ exited with 0 +++ [pid 4261] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4261, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17940", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17940", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17940/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17940/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17940/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17940") = 0 mkdir("./17941", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4263 ./strace-static-x86_64: Process 4263 attached [pid 4263] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4263] chdir("./17941") = 0 [pid 4263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4263] setpgid(0, 0) = 0 [pid 4263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4263] write(3, "1000", 4) = 4 [pid 4263] close(3) = 0 [pid 4263] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4263] write(1, "executing program\n", 18) = 18 [pid 4263] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4263] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4263] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4263] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4264 attached => {parent_tid=[4264]}, 88) = 4264 [pid 4264] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4264] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4263] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4264] <... futex resumed>) = 0 [pid 4264] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4264] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4264] <... futex resumed>) = 0 [pid 4264] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4264] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4264] <... futex resumed>) = 0 [pid 4263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4264] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4263] <... futex resumed>) = 0 [pid 4263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4264] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4264] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4263] <... futex resumed>) = 0 [pid 4263] exit_group(0) = ? [pid 4264] <... futex resumed>) = ? [pid 4264] +++ exited with 0 +++ [pid 4263] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4263, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17941", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17941", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17941/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17941/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17941/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17941") = 0 mkdir("./17942", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4265 ./strace-static-x86_64: Process 4265 attached [pid 4265] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4265] chdir("./17942") = 0 [pid 4265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4265] setpgid(0, 0) = 0 [pid 4265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4265] write(3, "1000", 4) = 4 [pid 4265] close(3) = 0 [pid 4265] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4265] write(1, "executing program\n", 18executing program ) = 18 [pid 4265] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4265] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4265] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4265] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4266 attached [pid 4266] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4266] rt_sigprocmask(SIG_SETMASK, [], [pid 4265] <... clone3 resumed> => {parent_tid=[4266]}, 88) = 4266 [pid 4266] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4265] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4266] <... futex resumed>) = 0 [pid 4266] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4266] <... futex resumed>) = 0 [pid 4266] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4266] <... futex resumed>) = 0 [pid 4266] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4266] <... futex resumed>) = 0 [pid 4265] <... futex resumed>) = 1 [pid 4265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4266] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4265] <... futex resumed>) = 0 [pid 4266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4265] exit_group(0) = ? [pid 4266] <... futex resumed>) = ? [pid 4266] +++ exited with 0 +++ [pid 4265] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4265, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17942", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17942", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17942/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17942/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17942/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17942") = 0 mkdir("./17943", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4267 ./strace-static-x86_64: Process 4267 attached [pid 4267] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4267] chdir("./17943") = 0 [pid 4267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4267] setpgid(0, 0) = 0 [pid 4267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4267] write(3, "1000", 4) = 4 [pid 4267] close(3) = 0 [pid 4267] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4267] write(1, "executing program\n", 18) = 18 [pid 4267] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4267] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4267] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4267] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4267] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4267] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4267] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4268 attached => {parent_tid=[4268]}, 88) = 4268 [pid 4268] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4268] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4268] <... futex resumed>) = 0 [pid 4268] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4268] <... futex resumed>) = 0 [pid 4267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4268] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4267] <... futex resumed>) = 0 [pid 4268] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4268] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4267] <... futex resumed>) = 0 [pid 4268] <... futex resumed>) = 0 [pid 4267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4268] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4268] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4268] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4267] <... futex resumed>) = 0 [pid 4268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4268] <... futex resumed>) = 0 [pid 4267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4268] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4267] exit_group(0) = ? [pid 4268] <... futex resumed>) = ? [pid 4268] +++ exited with 0 +++ [pid 4267] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4267, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17943", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17943", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17943/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17943/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17943/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17943") = 0 mkdir("./17944", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4269 ./strace-static-x86_64: Process 4269 attached [pid 4269] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4269] chdir("./17944") = 0 [pid 4269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4269] setpgid(0, 0) = 0 [pid 4269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4269] write(3, "1000", 4) = 4 [pid 4269] close(3) = 0 [pid 4269] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4269] write(1, "executing program\n", 18) = 18 [pid 4269] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4269] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4269] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4269] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4271 attached => {parent_tid=[4271]}, 88) = 4271 [pid 4271] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4269] rt_sigprocmask(SIG_SETMASK, [], [pid 4271] <... set_robust_list resumed>) = 0 [pid 4269] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4271] rt_sigprocmask(SIG_SETMASK, [], [pid 4269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4271] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4271] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4271] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4269] <... futex resumed>) = 0 [pid 4269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4271] <... futex resumed>) = 1 [pid 4271] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4271] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4269] <... futex resumed>) = 0 [pid 4269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4271] <... futex resumed>) = 1 [pid 4271] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4271] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4269] <... futex resumed>) = 0 [pid 4269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4271] <... futex resumed>) = 1 [pid 4271] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4271] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4269] <... futex resumed>) = 0 [pid 4269] exit_group(0) = ? [pid 4271] <... futex resumed>) = ? [pid 4271] +++ exited with 0 +++ [pid 4269] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4269, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17944", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17944", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17944/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17944/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17944/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17944") = 0 mkdir("./17945", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4272 ./strace-static-x86_64: Process 4272 attached [pid 4272] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4272] chdir("./17945") = 0 [pid 4272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4272] setpgid(0, 0) = 0 [pid 4272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4272] write(3, "1000", 4) = 4 [pid 4272] close(3) = 0 [pid 4272] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4272] write(1, "executing program\n", 18executing program ) = 18 [pid 4272] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4272] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4272] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4272] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4272] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4272] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4273 attached [pid 4273] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4272] <... clone3 resumed> => {parent_tid=[4273]}, 88) = 4273 [pid 4273] <... set_robust_list resumed>) = 0 [pid 4273] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4273] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4272] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4273] <... futex resumed>) = 0 [pid 4273] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4273] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4273] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4272] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4272] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4273] <... futex resumed>) = 0 [pid 4273] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4273] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4273] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4272] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4272] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4273] <... futex resumed>) = 0 [pid 4273] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4272] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4273] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4273] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4272] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4272] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4273] <... futex resumed>) = 0 [pid 4272] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4273] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4273] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4273] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4272] <... futex resumed>) = 0 [pid 4272] exit_group(0) = ? [pid 4273] <... futex resumed>) = ? [pid 4273] +++ exited with 0 +++ [pid 4272] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4272, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17945", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17945", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17945/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17945/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17945/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17945") = 0 mkdir("./17946", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4274 ./strace-static-x86_64: Process 4274 attached [pid 4274] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4274] chdir("./17946") = 0 [pid 4274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4274] setpgid(0, 0) = 0 [pid 4274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4274] write(3, "1000", 4) = 4 [pid 4274] close(3) = 0 [pid 4274] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4274] write(1, "executing program\n", 18executing program ) = 18 [pid 4274] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4274] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4274] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4274] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4274] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4274] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4275 attached => {parent_tid=[4275]}, 88) = 4275 [pid 4275] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4274] rt_sigprocmask(SIG_SETMASK, [], [pid 4275] <... set_robust_list resumed>) = 0 [pid 4275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4275] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4274] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4275] <... futex resumed>) = 0 [pid 4275] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4275] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4275] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4274] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4275] <... futex resumed>) = 0 [pid 4275] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4275] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4275] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4274] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4275] <... futex resumed>) = 0 [pid 4274] <... futex resumed>) = 1 [pid 4275] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4274] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4275] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4275] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4274] <... futex resumed>) = 0 [pid 4274] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4274] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4275] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4275] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4274] <... futex resumed>) = 0 [pid 4275] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] exit_group(0) = ? [pid 4275] <... futex resumed>) = ? [pid 4275] +++ exited with 0 +++ [pid 4274] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4274, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17946", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17946", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17946/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17946/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17946/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17946") = 0 mkdir("./17947", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4276 ./strace-static-x86_64: Process 4276 attached [pid 4276] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4276] chdir("./17947") = 0 [pid 4276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4276] setpgid(0, 0) = 0 [pid 4276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4276] write(3, "1000", 4) = 4 [pid 4276] close(3) = 0 [pid 4276] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4276] write(1, "executing program\n", 18executing program ) = 18 [pid 4276] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4276] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4276] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4276] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4276] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4276] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4276] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4277 attached [pid 4277] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4276] <... clone3 resumed> => {parent_tid=[4277]}, 88) = 4277 [pid 4277] <... set_robust_list resumed>) = 0 [pid 4277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4277] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4276] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4277] <... futex resumed>) = 0 [pid 4277] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4277] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4276] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4276] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4277] <... futex resumed>) = 0 [pid 4277] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4277] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4276] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4276] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4277] <... futex resumed>) = 0 [pid 4276] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4277] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4277] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4276] <... futex resumed>) = 0 [pid 4277] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4276] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4277] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4277] write(-1, "0x0000000000000001", 18 [pid 4276] <... futex resumed>) = 0 [pid 4277] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4276] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4277] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4276] <... futex resumed>) = 0 [pid 4277] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4276] exit_group(0) = ? [pid 4277] <... futex resumed>) = ? [pid 4277] +++ exited with 0 +++ [pid 4276] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4276, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17947", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17947", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17947/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17947/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17947/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17947") = 0 mkdir("./17948", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4278 ./strace-static-x86_64: Process 4278 attached [pid 4278] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4278] chdir("./17948") = 0 [pid 4278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4278] setpgid(0, 0) = 0 [pid 4278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4278] write(3, "1000", 4) = 4 [pid 4278] close(3) = 0 [pid 4278] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4278] write(1, "executing program\n", 18executing program ) = 18 [pid 4278] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4278] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4278] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4278] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4278] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4278] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4278] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4279 attached => {parent_tid=[4279]}, 88) = 4279 [pid 4279] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4279] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4279] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4278] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4278] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4279] <... futex resumed>) = 0 [pid 4279] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4279] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4279] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4278] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4278] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4279] <... futex resumed>) = 0 [pid 4279] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4279] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4279] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4278] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4278] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4279] <... futex resumed>) = 0 [pid 4279] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4279] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4279] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4278] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4278] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4279] <... futex resumed>) = 0 [pid 4278] <... futex resumed>) = 1 [pid 4278] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4279] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4279] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4278] <... futex resumed>) = 0 [pid 4279] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4278] exit_group(0) = ? [pid 4279] <... futex resumed>) = ? [pid 4279] +++ exited with 0 +++ [pid 4278] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4278, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17948", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17948", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17948/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17948/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17948/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17948") = 0 mkdir("./17949", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4280 ./strace-static-x86_64: Process 4280 attached [pid 4280] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4280] chdir("./17949") = 0 [pid 4280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4280] setpgid(0, 0) = 0 [pid 4280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4280] write(3, "1000", 4) = 4 [pid 4280] close(3) = 0 [pid 4280] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4280] write(1, "executing program\n", 18) = 18 [pid 4280] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4280] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4280] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4280] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4280] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4281 attached => {parent_tid=[4281]}, 88) = 4281 [pid 4281] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4281] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4281] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4280] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4281] <... futex resumed>) = 0 [pid 4281] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4281] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4281] <... futex resumed>) = 0 [pid 4281] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4280] <... futex resumed>) = 0 [pid 4281] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4281] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4280] <... futex resumed>) = 0 [pid 4281] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4281] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4281] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4280] <... futex resumed>) = 0 [pid 4280] exit_group(0) = ? [pid 4281] <... futex resumed>) = ? [pid 4281] +++ exited with 0 +++ [pid 4280] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4280, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17949", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17949", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17949/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17949/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17949/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17949") = 0 mkdir("./17950", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4282 ./strace-static-x86_64: Process 4282 attached [pid 4282] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4282] chdir("./17950") = 0 [pid 4282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4282] setpgid(0, 0) = 0 [pid 4282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4282] write(3, "1000", 4) = 4 [pid 4282] close(3) = 0 [pid 4282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4282] write(1, "executing program\n", 18executing program ) = 18 [pid 4282] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4282] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4282] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4282] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4282] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4282] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4283 attached => {parent_tid=[4283]}, 88) = 4283 [pid 4283] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4283] <... set_robust_list resumed>) = 0 [pid 4282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4283] rt_sigprocmask(SIG_SETMASK, [], [pid 4282] <... futex resumed>) = 0 [pid 4283] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4283] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4282] <... futex resumed>) = 0 [pid 4283] <... futex resumed>) = 1 [pid 4282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4283] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4282] <... futex resumed>) = 0 [pid 4282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4283] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4282] <... futex resumed>) = 0 [pid 4283] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4283] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4282] <... futex resumed>) = 0 [pid 4283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4283] <... futex resumed>) = 0 [pid 4282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4283] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4282] <... futex resumed>) = 0 [pid 4283] write(-1, "0x0000000000000001", 18 [pid 4282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4283] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4282] <... futex resumed>) = 0 [pid 4283] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4282] exit_group(0) = ? [pid 4283] <... futex resumed>) = ? [pid 4283] +++ exited with 0 +++ [pid 4282] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4282, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17950", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17950", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17950/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17950/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17950/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17950") = 0 mkdir("./17951", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4284 ./strace-static-x86_64: Process 4284 attached [pid 4284] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4284] chdir("./17951") = 0 [pid 4284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4284] setpgid(0, 0) = 0 [pid 4284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4284] write(3, "1000", 4) = 4 [pid 4284] close(3) = 0 [pid 4284] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4284] write(1, "executing program\n", 18executing program ) = 18 [pid 4284] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4284] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4284] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4284] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4284] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4284] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4285 attached [pid 4285] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4284] <... clone3 resumed> => {parent_tid=[4285]}, 88) = 4285 [pid 4284] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4285] <... futex resumed>) = 0 [pid 4284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4285] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4285] <... futex resumed>) = 0 [pid 4285] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4285] <... futex resumed>) = 0 [pid 4284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4285] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4284] <... futex resumed>) = 0 [pid 4284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4285] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4284] <... futex resumed>) = 0 [pid 4285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4284] exit_group(0) = ? [pid 4285] <... futex resumed>) = ? [pid 4285] +++ exited with 0 +++ [pid 4284] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4284, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17951", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17951", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17951/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17951/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17951/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17951") = 0 mkdir("./17952", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4286 ./strace-static-x86_64: Process 4286 attached [pid 4286] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4286] chdir("./17952") = 0 [pid 4286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4286] setpgid(0, 0) = 0 [pid 4286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4286] write(3, "1000", 4) = 4 [pid 4286] close(3) = 0 [pid 4286] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4286] write(1, "executing program\n", 18executing program ) = 18 [pid 4286] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4286] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4286] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4286] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4286] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4287 attached => {parent_tid=[4287]}, 88) = 4287 [pid 4287] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4286] rt_sigprocmask(SIG_SETMASK, [], [pid 4287] <... set_robust_list resumed>) = 0 [pid 4286] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4287] rt_sigprocmask(SIG_SETMASK, [], [pid 4286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4287] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4286] <... futex resumed>) = 0 [pid 4286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4286] <... futex resumed>) = 0 [pid 4287] <... futex resumed>) = 1 [pid 4286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4287] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4286] <... futex resumed>) = 0 [pid 4286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4286] <... futex resumed>) = 0 [pid 4287] <... futex resumed>) = 1 [pid 4286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4287] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4286] <... futex resumed>) = 0 [pid 4287] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4287] <... futex resumed>) = 0 [pid 4286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4286] <... futex resumed>) = 0 [pid 4287] <... futex resumed>) = 1 [pid 4286] exit_group(0 [pid 4287] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4286] <... exit_group resumed>) = ? [pid 4287] <... futex resumed>) = ? [pid 4287] +++ exited with 0 +++ [pid 4286] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4286, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17952", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17952", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17952/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17952/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17952/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17952") = 0 mkdir("./17953", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4288 attached , child_tidptr=0x55558931b690) = 4288 [pid 4288] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4288] chdir("./17953") = 0 [pid 4288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4288] setpgid(0, 0) = 0 [pid 4288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4288] write(3, "1000", 4) = 4 [pid 4288] close(3) = 0 [pid 4288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4288] write(1, "executing program\n", 18executing program ) = 18 [pid 4288] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4288] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4288] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4289 attached => {parent_tid=[4289]}, 88) = 4289 [pid 4289] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4289] <... futex resumed>) = 0 [pid 4289] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4289] <... futex resumed>) = 0 [pid 4289] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4289] <... futex resumed>) = 0 [pid 4289] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4289] <... futex resumed>) = 0 [pid 4289] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4288] exit_group(0) = ? [pid 4289] <... futex resumed>) = ? [pid 4289] +++ exited with 0 +++ [pid 4288] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4288, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17953", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17953", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17953/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17953/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17953/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17953") = 0 mkdir("./17954", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4290 ./strace-static-x86_64: Process 4290 attached [pid 4290] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4290] chdir("./17954") = 0 [pid 4290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4290] setpgid(0, 0) = 0 [pid 4290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4290] write(3, "1000", 4) = 4 [pid 4290] close(3) = 0 [pid 4290] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4290] write(1, "executing program\n", 18executing program ) = 18 [pid 4290] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4290] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4290] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4290] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4290] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4290] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4291 attached => {parent_tid=[4291]}, 88) = 4291 [pid 4291] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4290] rt_sigprocmask(SIG_SETMASK, [], [pid 4291] <... set_robust_list resumed>) = 0 [pid 4291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4290] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4291] <... futex resumed>) = 0 [pid 4291] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4291] <... futex resumed>) = 0 [pid 4291] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4291] <... futex resumed>) = 0 [pid 4290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4291] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4290] <... futex resumed>) = 0 [pid 4290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4291] <... futex resumed>) = 0 [pid 4290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4291] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4290] <... futex resumed>) = 0 [pid 4291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4290] exit_group(0) = ? [pid 4291] <... futex resumed>) = ? [pid 4291] +++ exited with 0 +++ [pid 4290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4290, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17954", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17954", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17954/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17954/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17954/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17954") = 0 mkdir("./17955", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4292 ./strace-static-x86_64: Process 4292 attached [pid 4292] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4292] chdir("./17955") = 0 [pid 4292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4292] setpgid(0, 0) = 0 [pid 4292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4292] write(3, "1000", 4) = 4 [pid 4292] close(3) = 0 [pid 4292] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4292] write(1, "executing program\n", 18executing program ) = 18 [pid 4292] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4292] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4292] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4292] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4292] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4293 attached => {parent_tid=[4293]}, 88) = 4293 [pid 4293] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4292] rt_sigprocmask(SIG_SETMASK, [], [pid 4293] <... set_robust_list resumed>) = 0 [pid 4292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4293] rt_sigprocmask(SIG_SETMASK, [], [pid 4292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4293] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4292] <... futex resumed>) = 0 [pid 4292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4292] <... futex resumed>) = 0 [pid 4293] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4293] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4292] <... futex resumed>) = 0 [pid 4293] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4292] <... futex resumed>) = 0 [pid 4293] <... futex resumed>) = 1 [pid 4292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4293] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4292] <... futex resumed>) = 0 [pid 4293] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4293] <... futex resumed>) = 0 [pid 4292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4293] write(-1, "0x0000000000000001", 18 [pid 4292] <... futex resumed>) = 0 [pid 4293] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4293] <... futex resumed>) = 0 [pid 4292] exit_group(0 [pid 4293] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4292] <... exit_group resumed>) = ? [pid 4293] <... futex resumed>) = ? [pid 4293] +++ exited with 0 +++ [pid 4292] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17955", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17955", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17955/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17955/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17955/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17955") = 0 mkdir("./17956", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4294 ./strace-static-x86_64: Process 4294 attached [pid 4294] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4294] chdir("./17956") = 0 [pid 4294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4294] setpgid(0, 0) = 0 [pid 4294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4294] write(3, "1000", 4) = 4 [pid 4294] close(3) = 0 [pid 4294] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4294] write(1, "executing program\n", 18executing program ) = 18 [pid 4294] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4294] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4294] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4294] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4294] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4295 attached => {parent_tid=[4295]}, 88) = 4295 [pid 4295] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4295] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4295] <... futex resumed>) = 0 [pid 4294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4295] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4295] <... futex resumed>) = 0 [pid 4295] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4295] <... futex resumed>) = 0 [pid 4295] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4295] <... futex resumed>) = 0 [pid 4295] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4294] exit_group(0) = ? [pid 4295] <... futex resumed>) = ? [pid 4295] +++ exited with 0 +++ [pid 4294] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4294, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17956", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17956", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17956/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17956/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17956/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17956") = 0 mkdir("./17957", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4296 ./strace-static-x86_64: Process 4296 attached [pid 4296] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4296] chdir("./17957") = 0 [pid 4296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4296] setpgid(0, 0) = 0 [pid 4296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4296] write(3, "1000", 4) = 4 [pid 4296] close(3) = 0 [pid 4296] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4296] write(1, "executing program\n", 18) = 18 [pid 4296] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4296] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4296] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4297 attached => {parent_tid=[4297]}, 88) = 4297 [pid 4297] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4297] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4297] <... futex resumed>) = 0 [pid 4297] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4297] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4297] <... futex resumed>) = 0 [pid 4296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4297] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4296] <... futex resumed>) = 0 [pid 4297] <... futex resumed>) = 1 [pid 4296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4297] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4296] <... futex resumed>) = 0 [pid 4296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4297] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4296] <... futex resumed>) = 0 [pid 4296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4297] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4296] <... futex resumed>) = 0 [pid 4297] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4296] exit_group(0) = ? [pid 4297] <... futex resumed>) = ? [pid 4297] +++ exited with 0 +++ [pid 4296] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4296, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./17957", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17957", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17957/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17957/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17957/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17957") = 0 mkdir("./17958", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4298 ./strace-static-x86_64: Process 4298 attached [pid 4298] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4298] chdir("./17958") = 0 [pid 4298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4298] setpgid(0, 0) = 0 [pid 4298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4298] write(3, "1000", 4) = 4 [pid 4298] close(3) = 0 [pid 4298] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4298] write(1, "executing program\n", 18executing program ) = 18 [pid 4298] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4298] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4299 attached => {parent_tid=[4299]}, 88) = 4299 [pid 4299] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4299] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4299] <... futex resumed>) = 0 [pid 4299] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4299] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4299] <... futex resumed>) = 0 [pid 4299] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4299] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4299] <... futex resumed>) = 0 [pid 4298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4299] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4298] <... futex resumed>) = 0 [pid 4298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4299] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4298] <... futex resumed>) = 0 [pid 4298] exit_group(0) = ? [pid 4299] +++ exited with 0 +++ [pid 4298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4298, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17958", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17958", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17958/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17958/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17958/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17958") = 0 mkdir("./17959", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4300 ./strace-static-x86_64: Process 4300 attached [pid 4300] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4300] chdir("./17959") = 0 [pid 4300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4300] setpgid(0, 0) = 0 [pid 4300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4300] write(3, "1000", 4) = 4 [pid 4300] close(3) = 0 [pid 4300] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4300] write(1, "executing program\n", 18) = 18 [pid 4300] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4300] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4300] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4300] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4300] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4300] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4301 attached [pid 4301] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4300] <... clone3 resumed> => {parent_tid=[4301]}, 88) = 4301 [pid 4300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4301] <... futex resumed>) = 0 [pid 4300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4301] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4300] <... futex resumed>) = 0 [pid 4301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4300] <... futex resumed>) = 0 [pid 4301] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4301] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4300] <... futex resumed>) = 0 [pid 4300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4301] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4300] <... futex resumed>) = 0 [pid 4301] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4301] <... futex resumed>) = 0 [pid 4300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4301] write(-1, "0x0000000000000001", 18 [pid 4300] <... futex resumed>) = 0 [pid 4301] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4301] <... futex resumed>) = 0 [pid 4300] exit_group(0 [pid 4301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4300] <... exit_group resumed>) = ? [pid 4301] <... futex resumed>) = ? [pid 4301] +++ exited with 0 +++ [pid 4300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17959", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17959", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17959/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17959/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17959/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17959") = 0 mkdir("./17960", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4302 ./strace-static-x86_64: Process 4302 attached [pid 4302] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4302] chdir("./17960") = 0 [pid 4302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4302] setpgid(0, 0) = 0 [pid 4302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4302] write(3, "1000", 4) = 4 [pid 4302] close(3) = 0 [pid 4302] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4302] write(1, "executing program\n", 18) = 18 [pid 4302] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4302] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4302] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4302] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4302] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4303 attached => {parent_tid=[4303]}, 88) = 4303 [pid 4303] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4303] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4303] <... futex resumed>) = 0 [pid 4303] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4303] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4303] <... futex resumed>) = 0 [pid 4302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4303] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4303] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4302] <... futex resumed>) = 0 [pid 4302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4303] <... futex resumed>) = 0 [pid 4303] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4303] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4303] <... futex resumed>) = 0 [pid 4302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4303] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4302] <... futex resumed>) = 0 [pid 4303] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4302] exit_group(0) = ? [pid 4303] <... futex resumed>) = ? [pid 4303] +++ exited with 0 +++ [pid 4302] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17960", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17960", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17960/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17960/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17960/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17960") = 0 mkdir("./17961", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4304 ./strace-static-x86_64: Process 4304 attached [pid 4304] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4304] chdir("./17961") = 0 [pid 4304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4304] setpgid(0, 0) = 0 [pid 4304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4304] write(3, "1000", 4) = 4 [pid 4304] close(3) = 0 [pid 4304] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4304] write(1, "executing program\n", 18) = 18 [pid 4304] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4304] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4304] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4304] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4304] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4305 attached => {parent_tid=[4305]}, 88) = 4305 [pid 4305] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4305] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4305] <... futex resumed>) = 0 [pid 4304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4305] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4305] <... futex resumed>) = 0 [pid 4304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4304] <... futex resumed>) = 0 [pid 4304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4304] <... futex resumed>) = 0 [pid 4304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4304] <... futex resumed>) = 0 [pid 4304] exit_group(0) = ? [pid 4305] +++ exited with 0 +++ [pid 4304] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17961", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17961", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17961/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17961/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17961/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17961") = 0 mkdir("./17962", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4306 ./strace-static-x86_64: Process 4306 attached [pid 4306] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4306] chdir("./17962") = 0 [pid 4306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4306] setpgid(0, 0) = 0 [pid 4306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4306] write(3, "1000", 4) = 4 [pid 4306] close(3) = 0 [pid 4306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4306] write(1, "executing program\n", 18executing program ) = 18 [pid 4306] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4306] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4306] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4307 attached [pid 4307] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4306] <... clone3 resumed> => {parent_tid=[4307]}, 88) = 4307 [pid 4306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4307] <... futex resumed>) = 0 [pid 4307] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4307] <... futex resumed>) = 0 [pid 4307] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4306] <... futex resumed>) = 0 [pid 4307] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4307] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4306] <... futex resumed>) = 0 [pid 4306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4307] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4306] <... futex resumed>) = 0 [pid 4307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4306] exit_group(0) = ? [pid 4307] <... futex resumed>) = ? [pid 4307] +++ exited with 0 +++ [pid 4306] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17962", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17962", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17962/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17962/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17962/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17962") = 0 mkdir("./17963", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4308 ./strace-static-x86_64: Process 4308 attached [pid 4308] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4308] chdir("./17963") = 0 [pid 4308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4308] setpgid(0, 0) = 0 [pid 4308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4308] write(3, "1000", 4) = 4 [pid 4308] close(3) = 0 executing program [pid 4308] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4308] write(1, "executing program\n", 18) = 18 [pid 4308] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4308] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4308] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4308] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4308] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4308] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4309 attached => {parent_tid=[4309]}, 88) = 4309 [pid 4309] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4308] rt_sigprocmask(SIG_SETMASK, [], [pid 4309] <... set_robust_list resumed>) = 0 [pid 4309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4308] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4309] <... futex resumed>) = 0 [pid 4309] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4309] <... futex resumed>) = 0 [pid 4309] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4309] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4308] <... futex resumed>) = 0 [pid 4308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4309] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4308] <... futex resumed>) = 0 [pid 4308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4309] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4308] <... futex resumed>) = 0 [pid 4309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4308] exit_group(0) = ? [pid 4309] <... futex resumed>) = ? [pid 4309] +++ exited with 0 +++ [pid 4308] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4308, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17963", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17963", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17963/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17963/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17963/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17963") = 0 mkdir("./17964", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4310 attached , child_tidptr=0x55558931b690) = 4310 [pid 4310] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4310] chdir("./17964") = 0 [pid 4310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4310] setpgid(0, 0) = 0 [pid 4310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4310] write(3, "1000", 4) = 4 [pid 4310] close(3) = 0 [pid 4310] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4310] write(1, "executing program\n", 18executing program ) = 18 [pid 4310] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4310] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4310] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4310] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4310] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4310] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4311 attached => {parent_tid=[4311]}, 88) = 4311 [pid 4311] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4310] rt_sigprocmask(SIG_SETMASK, [], [pid 4311] <... set_robust_list resumed>) = 0 [pid 4311] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4311] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4311] <... futex resumed>) = 0 [pid 4311] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4311] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4311] <... futex resumed>) = 0 [pid 4311] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4311] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4311] <... futex resumed>) = 0 [pid 4311] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4311] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4311] <... futex resumed>) = 0 [pid 4310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4311] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4310] <... futex resumed>) = 0 [pid 4311] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4310] exit_group(0) = ? [pid 4311] <... futex resumed>) = ? [pid 4311] +++ exited with 0 +++ [pid 4310] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17964", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17964", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17964/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17964/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17964/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17964") = 0 mkdir("./17965", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4312 ./strace-static-x86_64: Process 4312 attached [pid 4312] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4312] chdir("./17965") = 0 [pid 4312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4312] setpgid(0, 0) = 0 [pid 4312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4312] write(3, "1000", 4) = 4 [pid 4312] close(3) = 0 [pid 4312] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4312] write(1, "executing program\n", 18executing program ) = 18 [pid 4312] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4312] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4312] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4312] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4312] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4312] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4313 attached => {parent_tid=[4313]}, 88) = 4313 [pid 4313] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4312] rt_sigprocmask(SIG_SETMASK, [], [pid 4313] <... set_robust_list resumed>) = 0 [pid 4313] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4313] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4312] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4312] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4313] <... futex resumed>) = 0 [pid 4313] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4313] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4312] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4312] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4313] <... futex resumed>) = 0 [pid 4313] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4313] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4312] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4312] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4313] <... futex resumed>) = 0 [pid 4312] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4313] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4313] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4312] <... futex resumed>) = 0 [pid 4312] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4313] write(-1, "0x0000000000000001", 18 [pid 4312] <... futex resumed>) = 0 [pid 4313] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4312] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4313] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4312] exit_group(0) = ? [pid 4313] <... futex resumed>) = ? [pid 4313] +++ exited with 0 +++ [pid 4312] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17965", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17965", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17965/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17965/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17965/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17965") = 0 mkdir("./17966", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4314 ./strace-static-x86_64: Process 4314 attached [pid 4314] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4314] chdir("./17966") = 0 [pid 4314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4314] setpgid(0, 0) = 0 [pid 4314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4314] write(3, "1000", 4) = 4 [pid 4314] close(3) = 0 [pid 4314] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4314] write(1, "executing program\n", 18executing program ) = 18 [pid 4314] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4314] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4314] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4315 attached [pid 4315] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4315] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4314] <... clone3 resumed> => {parent_tid=[4315]}, 88) = 4315 [pid 4314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4314] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4315] <... futex resumed>) = 0 [pid 4315] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4315] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4315] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4314] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4314] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4315] <... futex resumed>) = 0 [pid 4315] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4315] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4315] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4314] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4314] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4315] <... futex resumed>) = 0 [pid 4314] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4315] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4315] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4314] <... futex resumed>) = 0 [pid 4315] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4314] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4315] <... futex resumed>) = 0 [pid 4314] <... futex resumed>) = 1 [pid 4314] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4315] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4315] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4314] <... futex resumed>) = 0 [pid 4315] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4314] exit_group(0) = ? [pid 4315] <... futex resumed>) = ? [pid 4315] +++ exited with 0 +++ [pid 4314] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4314, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- umount2("./17966", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17966", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17966/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17966/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17966/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17966") = 0 mkdir("./17967", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4316 ./strace-static-x86_64: Process 4316 attached [pid 4316] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4316] chdir("./17967") = 0 [pid 4316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4316] setpgid(0, 0) = 0 [pid 4316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4316] write(3, "1000", 4) = 4 [pid 4316] close(3) = 0 [pid 4316] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4316] write(1, "executing program\n", 18executing program ) = 18 [pid 4316] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4316] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4316] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4316] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4317 attached => {parent_tid=[4317]}, 88) = 4317 [pid 4316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4316] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4317] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4317] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4317] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4316] <... futex resumed>) = 0 [pid 4316] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4317] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4316] <... futex resumed>) = 0 [pid 4316] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4317] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4316] <... futex resumed>) = 0 [pid 4316] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4317] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4316] <... futex resumed>) = 0 [pid 4316] exit_group(0) = ? [pid 4317] +++ exited with 0 +++ [pid 4316] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17967", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17967", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17967/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17967/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17967/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17967") = 0 mkdir("./17968", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4318 ./strace-static-x86_64: Process 4318 attached [pid 4318] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4318] chdir("./17968") = 0 [pid 4318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4318] setpgid(0, 0) = 0 [pid 4318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4318] write(3, "1000", 4) = 4 [pid 4318] close(3) = 0 [pid 4318] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4318] write(1, "executing program\n", 18executing program ) = 18 [pid 4318] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4318] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4318] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4318] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4318] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4318] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4319 attached => {parent_tid=[4319]}, 88) = 4319 [pid 4319] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4318] rt_sigprocmask(SIG_SETMASK, [], [pid 4319] <... set_robust_list resumed>) = 0 [pid 4318] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4319] rt_sigprocmask(SIG_SETMASK, [], [pid 4318] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4319] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4318] <... futex resumed>) = 0 [pid 4318] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4319] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4319] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4318] <... futex resumed>) = 0 [pid 4318] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4318] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4319] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4319] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4318] <... futex resumed>) = 0 [pid 4319] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4318] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4318] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4319] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4319] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4318] <... futex resumed>) = 0 [pid 4318] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4318] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4319] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4319] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4318] <... futex resumed>) = 0 [pid 4319] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4318] exit_group(0 [pid 4319] <... futex resumed>) = ? [pid 4318] <... exit_group resumed>) = ? [pid 4319] +++ exited with 0 +++ [pid 4318] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4318, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17968", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17968", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17968/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17968/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17968/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17968") = 0 mkdir("./17969", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4320 attached , child_tidptr=0x55558931b690) = 4320 [pid 4320] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4320] chdir("./17969") = 0 [pid 4320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4320] setpgid(0, 0) = 0 [pid 4320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4320] write(3, "1000", 4) = 4 [pid 4320] close(3) = 0 [pid 4320] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4320] write(1, "executing program\n", 18executing program ) = 18 [pid 4320] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4320] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4320] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4320] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4320] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4320] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4321 attached => {parent_tid=[4321]}, 88) = 4321 [pid 4320] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4320] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4320] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4321] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4321] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4321] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4321] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4320] <... futex resumed>) = 0 [pid 4320] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4320] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4321] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4321] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4320] <... futex resumed>) = 0 [pid 4320] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4320] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4321] <... futex resumed>) = 1 [pid 4321] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4321] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4320] <... futex resumed>) = 0 [pid 4320] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4320] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4321] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4321] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4320] <... futex resumed>) = 0 [pid 4320] exit_group(0) = ? [pid 4321] +++ exited with 0 +++ [pid 4320] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4320, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17969", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17969", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17969/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17969/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17969/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17969") = 0 mkdir("./17970", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4322 ./strace-static-x86_64: Process 4322 attached [pid 4322] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4322] chdir("./17970") = 0 [pid 4322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4322] setpgid(0, 0) = 0 [pid 4322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4322] write(3, "1000", 4) = 4 [pid 4322] close(3) = 0 [pid 4322] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4322] write(1, "executing program\n", 18executing program ) = 18 [pid 4322] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4322] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4322] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4322] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4322] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4323 attached => {parent_tid=[4323]}, 88) = 4323 [pid 4323] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4323] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4323] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4322] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4323] <... futex resumed>) = 0 [pid 4323] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4323] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4323] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4322] <... futex resumed>) = 1 [pid 4322] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4322] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4323] <... futex resumed>) = 0 [pid 4323] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4323] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4323] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4322] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4322] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4323] <... futex resumed>) = 0 [pid 4323] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4323] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4323] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4322] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4322] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4323] <... futex resumed>) = 0 [pid 4323] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4323] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4323] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4322] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4322] exit_group(0) = ? [pid 4323] <... futex resumed>) = ? [pid 4323] +++ exited with 0 +++ [pid 4322] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4322, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17970", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17970", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17970/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17970/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17970/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17970") = 0 mkdir("./17971", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4324 attached , child_tidptr=0x55558931b690) = 4324 [pid 4324] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4324] chdir("./17971") = 0 [pid 4324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4324] setpgid(0, 0) = 0 [pid 4324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4324] write(3, "1000", 4) = 4 [pid 4324] close(3) = 0 [pid 4324] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4324] write(1, "executing program\n", 18executing program ) = 18 [pid 4324] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4324] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4324] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4324] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4324] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4324] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4324] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4325 attached [pid 4325] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4325] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4324] <... clone3 resumed> => {parent_tid=[4325]}, 88) = 4325 [pid 4324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4324] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4325] <... futex resumed>) = 0 [pid 4325] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4324] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4325] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4325] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4324] <... futex resumed>) = 0 [pid 4324] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4324] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4325] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4325] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4324] <... futex resumed>) = 0 [pid 4324] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4325] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4324] <... futex resumed>) = 0 [pid 4324] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4325] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4325] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4324] <... futex resumed>) = 0 [pid 4324] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4324] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4325] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4325] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4324] <... futex resumed>) = 0 [pid 4325] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4324] exit_group(0) = ? [pid 4325] <... futex resumed>) = ? [pid 4325] +++ exited with 0 +++ [pid 4324] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4324, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17971", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17971", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17971/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17971/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17971/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17971") = 0 mkdir("./17972", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4326 ./strace-static-x86_64: Process 4326 attached [pid 4326] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4326] chdir("./17972") = 0 [pid 4326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4326] setpgid(0, 0) = 0 [pid 4326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4326] write(3, "1000", 4) = 4 [pid 4326] close(3) = 0 [pid 4326] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4326] write(1, "executing program\n", 18executing program ) = 18 [pid 4326] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4326] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4326] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4326] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4326] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4326] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4327 attached => {parent_tid=[4327]}, 88) = 4327 [pid 4327] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4327] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4327] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4326] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4327] <... futex resumed>) = 0 [pid 4327] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4327] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4327] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4326] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4326] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4327] <... futex resumed>) = 0 [pid 4327] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4327] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4327] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4326] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4326] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4327] <... futex resumed>) = 0 [pid 4327] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4327] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4327] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4326] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4326] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4327] <... futex resumed>) = 0 [pid 4326] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4327] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4327] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4326] <... futex resumed>) = 0 [pid 4327] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4326] exit_group(0) = ? [pid 4327] <... futex resumed>) = ? [pid 4327] +++ exited with 0 +++ [pid 4326] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./17972", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17972", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17972/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17972/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17972/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17972") = 0 mkdir("./17973", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4328 ./strace-static-x86_64: Process 4328 attached [pid 4328] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4328] chdir("./17973") = 0 [pid 4328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4328] setpgid(0, 0) = 0 [pid 4328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4328] write(3, "1000", 4) = 4 [pid 4328] close(3) = 0 [pid 4328] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4328] write(1, "executing program\n", 18) = 18 [pid 4328] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4328] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4328] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4328] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4328] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4329 attached => {parent_tid=[4329]}, 88) = 4329 [pid 4329] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4329] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4328] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4328] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4329] <... futex resumed>) = 0 [pid 4329] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4329] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4329] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4328] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4328] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4329] <... futex resumed>) = 0 [pid 4329] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4328] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4329] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4328] <... futex resumed>) = 0 [pid 4329] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4328] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4328] <... futex resumed>) = 0 [pid 4329] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4328] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4329] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4329] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4328] <... futex resumed>) = 0 [pid 4328] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4329] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4329] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4328] <... futex resumed>) = 0 [pid 4329] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4328] exit_group(0) = ? [pid 4329] <... futex resumed>) = ? [pid 4329] +++ exited with 0 +++ [pid 4328] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4328, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17973", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17973", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17973/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17973/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17973/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17973") = 0 mkdir("./17974", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4330 ./strace-static-x86_64: Process 4330 attached [pid 4330] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4330] chdir("./17974") = 0 [pid 4330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4330] setpgid(0, 0) = 0 [pid 4330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4330] write(3, "1000", 4) = 4 [pid 4330] close(3) = 0 [pid 4330] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4330] write(1, "executing program\n", 18executing program ) = 18 [pid 4330] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4330] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4330] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4331 attached [pid 4331] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4330] <... clone3 resumed> => {parent_tid=[4331]}, 88) = 4331 [pid 4331] <... set_robust_list resumed>) = 0 [pid 4330] rt_sigprocmask(SIG_SETMASK, [], [pid 4331] rt_sigprocmask(SIG_SETMASK, [], [pid 4330] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4331] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4330] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4330] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4331] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4331] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4330] <... futex resumed>) = 0 [pid 4331] <... futex resumed>) = 1 [pid 4330] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4331] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4330] <... futex resumed>) = 0 [pid 4330] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4331] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4331] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4330] <... futex resumed>) = 0 [pid 4331] <... futex resumed>) = 1 [pid 4330] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4331] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4330] <... futex resumed>) = 0 [pid 4330] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4331] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4331] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4330] <... futex resumed>) = 0 [pid 4331] <... futex resumed>) = 1 [pid 4330] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4330] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4331] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4331] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4330] <... futex resumed>) = 0 [pid 4330] exit_group(0) = ? [pid 4331] <... futex resumed>) = ? [pid 4331] +++ exited with 0 +++ [pid 4330] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17974", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17974", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17974/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17974/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17974/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17974") = 0 mkdir("./17975", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4332 ./strace-static-x86_64: Process 4332 attached [pid 4332] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4332] chdir("./17975") = 0 [pid 4332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4332] setpgid(0, 0) = 0 [pid 4332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4332] write(3, "1000", 4) = 4 [pid 4332] close(3) = 0 [pid 4332] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4332] write(1, "executing program\n", 18executing program ) = 18 [pid 4332] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4332] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4332] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4332] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4332] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4332] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4333 attached => {parent_tid=[4333]}, 88) = 4333 [pid 4333] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4332] rt_sigprocmask(SIG_SETMASK, [], [pid 4333] <... set_robust_list resumed>) = 0 [pid 4332] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4333] rt_sigprocmask(SIG_SETMASK, [], [pid 4332] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4333] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4332] <... futex resumed>) = 0 [pid 4332] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4333] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4333] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4332] <... futex resumed>) = 0 [pid 4332] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4332] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4333] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4333] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4332] <... futex resumed>) = 0 [pid 4332] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4332] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4333] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4333] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4332] <... futex resumed>) = 0 [pid 4332] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4332] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4333] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4333] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4332] <... futex resumed>) = 0 [pid 4332] exit_group(0) = ? [pid 4333] +++ exited with 0 +++ [pid 4332] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4332, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17975", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17975", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17975/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17975/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17975/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17975") = 0 mkdir("./17976", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4334 ./strace-static-x86_64: Process 4334 attached [pid 4334] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4334] chdir("./17976") = 0 [pid 4334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4334] setpgid(0, 0) = 0 [pid 4334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4334] write(3, "1000", 4) = 4 [pid 4334] close(3) = 0 [pid 4334] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4334] write(1, "executing program\n", 18) = 18 [pid 4334] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4334] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4334] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4334] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4334] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4335 attached => {parent_tid=[4335]}, 88) = 4335 [pid 4335] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4335] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4335] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4334] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4335] <... futex resumed>) = 0 [pid 4335] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4335] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4334] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] <... futex resumed>) = 0 [pid 4335] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4334] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4335] <... futex resumed>) = 0 [pid 4335] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4334] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4334] <... futex resumed>) = 0 [pid 4335] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4334] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4335] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4334] <... futex resumed>) = 0 [pid 4335] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4334] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4335] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4334] <... futex resumed>) = 0 [pid 4334] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4335] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4334] <... futex resumed>) = 0 [pid 4335] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4334] exit_group(0) = ? [pid 4335] <... futex resumed>) = ? [pid 4335] +++ exited with 0 +++ [pid 4334] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4334, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17976", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17976", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17976/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17976/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17976/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17976") = 0 mkdir("./17977", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4336 ./strace-static-x86_64: Process 4336 attached [pid 4336] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4336] chdir("./17977") = 0 [pid 4336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4336] setpgid(0, 0) = 0 [pid 4336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4336] write(3, "1000", 4) = 4 [pid 4336] close(3) = 0 [pid 4336] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4336] write(1, "executing program\n", 18executing program ) = 18 [pid 4336] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4336] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4336] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4336] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4336] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4336] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4337 attached => {parent_tid=[4337]}, 88) = 4337 [pid 4336] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4336] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4336] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4337] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4337] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4337] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4336] <... futex resumed>) = 0 [pid 4336] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4336] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4337] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4337] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4336] <... futex resumed>) = 0 [pid 4336] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4336] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4337] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4337] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4336] <... futex resumed>) = 0 [pid 4336] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4336] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4337] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4337] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4336] <... futex resumed>) = 0 [pid 4336] exit_group(0) = ? [pid 4337] +++ exited with 0 +++ [pid 4336] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17977", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17977", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17977/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17977/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17977/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17977") = 0 mkdir("./17978", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4338 ./strace-static-x86_64: Process 4338 attached [pid 4338] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4338] chdir("./17978") = 0 [pid 4338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4338] setpgid(0, 0) = 0 [pid 4338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4338] write(3, "1000", 4) = 4 [pid 4338] close(3) = 0 [pid 4338] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4338] write(1, "executing program\n", 18) = 18 [pid 4338] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4338] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4338] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4338] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4339 attached [pid 4339] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4339] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4338] <... clone3 resumed> => {parent_tid=[4339]}, 88) = 4339 [pid 4338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4338] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4339] <... futex resumed>) = 0 [pid 4339] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4338] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4339] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4339] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4339] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4338] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4339] <... futex resumed>) = 0 [pid 4338] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4339] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4339] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4339] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4338] <... futex resumed>) = 0 [pid 4338] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4339] <... futex resumed>) = 0 [pid 4339] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4339] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4338] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4339] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4338] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4338] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4339] <... futex resumed>) = 0 [pid 4339] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4339] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4338] <... futex resumed>) = 0 [pid 4338] exit_group(0) = ? [pid 4339] +++ exited with 0 +++ [pid 4338] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17978", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17978", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17978/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17978/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17978/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17978") = 0 mkdir("./17979", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4340 ./strace-static-x86_64: Process 4340 attached [pid 4340] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4340] chdir("./17979") = 0 [pid 4340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4340] setpgid(0, 0) = 0 [pid 4340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4340] write(3, "1000", 4) = 4 [pid 4340] close(3) = 0 [pid 4340] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4340] write(1, "executing program\n", 18executing program ) = 18 [pid 4340] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4340] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4340] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4340] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4340] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4341 attached [pid 4341] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4341] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4340] <... clone3 resumed> => {parent_tid=[4341]}, 88) = 4341 [pid 4340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4340] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4341] <... futex resumed>) = 0 [pid 4340] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4341] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4340] <... futex resumed>) = 0 [pid 4340] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4341] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4340] <... futex resumed>) = 0 [pid 4340] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4341] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4340] <... futex resumed>) = 0 [pid 4340] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4341] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4340] <... futex resumed>) = 0 [pid 4340] exit_group(0) = ? [pid 4341] +++ exited with 0 +++ [pid 4340] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17979", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17979", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17979/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17979/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17979/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17979") = 0 mkdir("./17980", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4342 ./strace-static-x86_64: Process 4342 attached [pid 4342] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4342] chdir("./17980") = 0 [pid 4342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4342] setpgid(0, 0) = 0 [pid 4342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4342] write(3, "1000", 4) = 4 [pid 4342] close(3) = 0 [pid 4342] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4342] write(1, "executing program\n", 18) = 18 [pid 4342] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4342] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4342] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4342] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4342] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4342] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4342] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4343]}, 88) = 4343 [pid 4342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4342] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4342] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4343 attached [pid 4343] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4343] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4343] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4342] <... futex resumed>) = 0 [pid 4342] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4342] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4343] <... futex resumed>) = 1 [pid 4343] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4343] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4342] <... futex resumed>) = 0 [pid 4342] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4342] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4343] <... futex resumed>) = 1 [pid 4343] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4343] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4342] <... futex resumed>) = 0 [pid 4342] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4342] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4343] <... futex resumed>) = 1 [pid 4343] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4343] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4342] <... futex resumed>) = 0 [pid 4342] exit_group(0) = ? [pid 4343] <... futex resumed>) = ? [pid 4343] +++ exited with 0 +++ [pid 4342] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17980", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17980", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17980/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17980/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17980/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17980") = 0 mkdir("./17981", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4344 ./strace-static-x86_64: Process 4344 attached [pid 4344] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4344] chdir("./17981") = 0 [pid 4344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4344] setpgid(0, 0) = 0 [pid 4344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4344] write(3, "1000", 4) = 4 [pid 4344] close(3) = 0 [pid 4344] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4344] write(1, "executing program\n", 18executing program ) = 18 [pid 4344] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4344] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4344] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4344] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4344] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4344] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4345 attached => {parent_tid=[4345]}, 88) = 4345 [pid 4345] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4344] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4345] <... set_robust_list resumed>) = 0 [pid 4344] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4345] rt_sigprocmask(SIG_SETMASK, [], [pid 4344] <... futex resumed>) = 0 [pid 4345] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4344] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4345] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4345] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4344] <... futex resumed>) = 0 [pid 4344] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4344] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4345] <... futex resumed>) = 1 [pid 4345] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4345] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4344] <... futex resumed>) = 0 [pid 4344] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4344] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4345] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4345] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4344] <... futex resumed>) = 0 [pid 4344] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4344] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4345] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4345] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4344] <... futex resumed>) = 0 [pid 4344] exit_group(0) = ? [pid 4345] +++ exited with 0 +++ [pid 4344] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17981", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17981", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17981/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17981/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17981/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17981") = 0 mkdir("./17982", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4346 ./strace-static-x86_64: Process 4346 attached [pid 4346] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4346] chdir("./17982") = 0 [pid 4346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4346] setpgid(0, 0) = 0 [pid 4346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4346] write(3, "1000", 4) = 4 [pid 4346] close(3) = 0 [pid 4346] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4346] write(1, "executing program\n", 18) = 18 [pid 4346] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4346] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4346] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4346] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4346] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4347 attached => {parent_tid=[4347]}, 88) = 4347 [pid 4347] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4347] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4347] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4346] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4347] <... futex resumed>) = 0 [pid 4347] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4346] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4347] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4347] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4347] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4346] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4347] <... futex resumed>) = 0 [pid 4346] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4347] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4347] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4346] <... futex resumed>) = 0 [pid 4347] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4346] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4347] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4347] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4346] <... futex resumed>) = 0 [pid 4346] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4347] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4347] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4346] <... futex resumed>) = 0 [pid 4347] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4346] exit_group(0) = ? [pid 4347] <... futex resumed>) = ? [pid 4347] +++ exited with 0 +++ [pid 4346] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17982", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17982", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17982/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17982/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17982/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17982") = 0 mkdir("./17983", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4348 ./strace-static-x86_64: Process 4348 attached [pid 4348] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4348] chdir("./17983") = 0 [pid 4348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4348] setpgid(0, 0) = 0 [pid 4348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4348] write(3, "1000", 4) = 4 [pid 4348] close(3) = 0 [pid 4348] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4348] write(1, "executing program\n", 18executing program ) = 18 [pid 4348] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4348] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4348] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4348] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4348] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4348] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4349 attached => {parent_tid=[4349]}, 88) = 4349 [pid 4349] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4349] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4349] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4348] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4348] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4349] <... futex resumed>) = 0 [pid 4349] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4349] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4348] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4348] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4349] <... futex resumed>) = 0 [pid 4349] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4349] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4348] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4348] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4349] <... futex resumed>) = 0 [pid 4349] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4349] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4348] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4348] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4349] <... futex resumed>) = 0 [pid 4349] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4349] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4348] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4348] exit_group(0) = ? [pid 4349] <... futex resumed>) = ? [pid 4349] +++ exited with 0 +++ [pid 4348] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4348, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17983", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17983", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17983/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17983/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17983/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17983") = 0 mkdir("./17984", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4350 ./strace-static-x86_64: Process 4350 attached [pid 4350] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4350] chdir("./17984") = 0 [pid 4350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4350] setpgid(0, 0) = 0 [pid 4350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4350] write(3, "1000", 4) = 4 [pid 4350] close(3) = 0 [pid 4350] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4350] write(1, "executing program\n", 18executing program ) = 18 [pid 4350] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4350] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4350] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4350] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4350] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4350] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4351 attached => {parent_tid=[4351]}, 88) = 4351 [pid 4351] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4351] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4351] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4350] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4351] <... futex resumed>) = 0 [pid 4351] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4351] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4351] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4350] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4350] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4351] <... futex resumed>) = 0 [pid 4351] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4351] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4351] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4350] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4350] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4351] <... futex resumed>) = 0 [pid 4351] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4351] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4351] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4350] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4350] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4351] <... futex resumed>) = 0 [pid 4350] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4351] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4351] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4350] <... futex resumed>) = 0 [pid 4351] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4350] exit_group(0) = ? [pid 4351] <... futex resumed>) = ? [pid 4351] +++ exited with 0 +++ [pid 4350] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4350, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17984", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17984", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17984/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17984/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17984/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17984") = 0 mkdir("./17985", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4352 ./strace-static-x86_64: Process 4352 attached [pid 4352] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4352] chdir("./17985") = 0 [pid 4352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4352] setpgid(0, 0) = 0 [pid 4352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4352] write(3, "1000", 4) = 4 [pid 4352] close(3) = 0 [pid 4352] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4352] write(1, "executing program\n", 18executing program ) = 18 [pid 4352] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4352] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4352] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4352] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4352] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4353 attached => {parent_tid=[4353]}, 88) = 4353 [pid 4353] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4353] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4353] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4352] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4352] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4353] <... futex resumed>) = 0 [pid 4352] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4353] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4353] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4353] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4352] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4353] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4353] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4353] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4352] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4353] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4353] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4352] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4353] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4353] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4353] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4352] exit_group(0) = ? [pid 4353] <... futex resumed>) = ? [pid 4353] +++ exited with 0 +++ [pid 4352] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17985", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17985", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17985/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17985/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17985/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17985") = 0 mkdir("./17986", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4354 ./strace-static-x86_64: Process 4354 attached [pid 4354] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4354] chdir("./17986") = 0 [pid 4354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4354] setpgid(0, 0) = 0 [pid 4354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4354] write(3, "1000", 4) = 4 [pid 4354] close(3) = 0 [pid 4354] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4354] write(1, "executing program\n", 18) = 18 [pid 4354] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4354] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4354] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4354] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4354] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4354] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4354] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4355 attached [pid 4355] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4355] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4355] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4354] <... clone3 resumed> => {parent_tid=[4355]}, 88) = 4355 [pid 4354] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4354] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4355] <... futex resumed>) = 0 [pid 4355] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4354] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4355] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4355] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4355] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4354] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4355] <... futex resumed>) = 0 [pid 4354] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4355] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4355] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4354] <... futex resumed>) = 0 [pid 4355] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4354] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4354] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4355] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4355] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4354] <... futex resumed>) = 0 [pid 4354] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4354] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4355] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4355] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4354] <... futex resumed>) = 0 [pid 4355] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4354] exit_group(0) = ? [pid 4355] <... futex resumed>) = ? [pid 4355] +++ exited with 0 +++ [pid 4354] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17986", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17986", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17986/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17986/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17986/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17986") = 0 mkdir("./17987", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4356 ./strace-static-x86_64: Process 4356 attached [pid 4356] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4356] chdir("./17987") = 0 [pid 4356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4356] setpgid(0, 0) = 0 [pid 4356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4356] write(3, "1000", 4) = 4 [pid 4356] close(3) = 0 [pid 4356] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4356] write(1, "executing program\n", 18executing program ) = 18 [pid 4356] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4356] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4356] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4356] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4356] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4357 attached => {parent_tid=[4357]}, 88) = 4357 [pid 4357] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4356] rt_sigprocmask(SIG_SETMASK, [], [pid 4357] rt_sigprocmask(SIG_SETMASK, [], [pid 4356] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4357] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4356] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4356] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4357] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4357] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4356] <... futex resumed>) = 0 [pid 4357] <... futex resumed>) = 1 [pid 4356] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4357] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4356] <... futex resumed>) = 0 [pid 4356] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4357] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4357] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4356] <... futex resumed>) = 0 [pid 4357] <... futex resumed>) = 1 [pid 4356] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4357] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4356] <... futex resumed>) = 0 [pid 4356] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4357] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4357] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4356] <... futex resumed>) = 0 [pid 4357] <... futex resumed>) = 1 [pid 4356] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4356] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4357] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4357] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4356] <... futex resumed>) = 0 [pid 4356] exit_group(0) = ? [pid 4357] <... futex resumed>) = ? [pid 4357] +++ exited with 0 +++ [pid 4356] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17987", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17987", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17987/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17987/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17987/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17987") = 0 mkdir("./17988", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4358 ./strace-static-x86_64: Process 4358 attached [pid 4358] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4358] chdir("./17988") = 0 [pid 4358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4358] setpgid(0, 0) = 0 [pid 4358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4358] write(3, "1000", 4) = 4 [pid 4358] close(3) = 0 [pid 4358] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4358] write(1, "executing program\n", 18executing program ) = 18 [pid 4358] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4358] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4358] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4358] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4358] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4359 attached => {parent_tid=[4359]}, 88) = 4359 [pid 4359] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4359] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4358] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4359] <... futex resumed>) = 0 [pid 4359] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4359] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4359] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4358] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4358] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4359] <... futex resumed>) = 0 [pid 4359] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4359] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4359] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4358] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4358] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4359] <... futex resumed>) = 0 [pid 4359] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4359] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4359] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4358] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4358] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4359] <... futex resumed>) = 0 [pid 4358] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4359] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4359] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4358] <... futex resumed>) = 0 [pid 4359] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4358] exit_group(0) = ? [pid 4359] <... futex resumed>) = ? [pid 4359] +++ exited with 0 +++ [pid 4358] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17988", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17988", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17988/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17988/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17988/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17988") = 0 mkdir("./17989", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4360 ./strace-static-x86_64: Process 4360 attached [pid 4360] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4360] chdir("./17989") = 0 [pid 4360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4360] setpgid(0, 0) = 0 [pid 4360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4360] write(3, "1000", 4) = 4 [pid 4360] close(3) = 0 [pid 4360] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4360] write(1, "executing program\n", 18executing program ) = 18 [pid 4360] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4360] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4360] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4360] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4360] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4360] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4360] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4361 attached => {parent_tid=[4361]}, 88) = 4361 [pid 4361] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4360] rt_sigprocmask(SIG_SETMASK, [], [pid 4361] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4361] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4360] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4360] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4361] <... futex resumed>) = 0 [pid 4361] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4361] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4360] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4360] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4361] <... futex resumed>) = 0 [pid 4361] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4361] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4360] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4360] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4361] <... futex resumed>) = 0 [pid 4361] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4361] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4360] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4360] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4361] <... futex resumed>) = 0 [pid 4360] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4361] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4361] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4360] <... futex resumed>) = 0 [pid 4361] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4360] exit_group(0) = ? [pid 4361] <... futex resumed>) = ? [pid 4361] +++ exited with 0 +++ [pid 4360] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17989", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17989", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17989/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17989/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17989/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17989") = 0 mkdir("./17990", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4362 ./strace-static-x86_64: Process 4362 attached [pid 4362] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4362] chdir("./17990") = 0 [pid 4362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4362] setpgid(0, 0) = 0 [pid 4362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4362] write(3, "1000", 4) = 4 [pid 4362] close(3) = 0 [pid 4362] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4362] write(1, "executing program\n", 18executing program ) = 18 [pid 4362] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4362] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4362] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4362] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4362] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4362] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4363 attached [pid 4363] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4362] <... clone3 resumed> => {parent_tid=[4363]}, 88) = 4363 [pid 4363] <... set_robust_list resumed>) = 0 [pid 4363] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4363] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4362] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4363] <... futex resumed>) = 0 [pid 4363] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4363] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4363] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4362] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4362] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4363] <... futex resumed>) = 0 [pid 4363] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4362] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4363] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4363] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4362] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4363] <... futex resumed>) = 0 [pid 4363] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4363] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4363] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4362] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4362] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4363] <... futex resumed>) = 0 [pid 4362] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4363] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4363] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4362] <... futex resumed>) = 0 [pid 4363] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4362] exit_group(0) = ? [pid 4363] <... futex resumed>) = ? [pid 4363] +++ exited with 0 +++ [pid 4362] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17990", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17990", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17990/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17990/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17990/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17990") = 0 mkdir("./17991", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4364 ./strace-static-x86_64: Process 4364 attached [pid 4364] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4364] chdir("./17991") = 0 [pid 4364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4364] setpgid(0, 0) = 0 [pid 4364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4364] write(3, "1000", 4) = 4 [pid 4364] close(3) = 0 [pid 4364] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4364] write(1, "executing program\n", 18) = 18 [pid 4364] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4364] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4364] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4364] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4364] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4365 attached [pid 4365] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4365] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4365] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4364] <... clone3 resumed> => {parent_tid=[4365]}, 88) = 4365 [pid 4364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4364] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4365] <... futex resumed>) = 0 [pid 4364] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4365] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4365] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4364] <... futex resumed>) = 0 [pid 4364] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4365] <... futex resumed>) = 0 [pid 4364] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4365] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4364] <... futex resumed>) = 0 [pid 4365] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4364] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4365] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4364] <... futex resumed>) = 0 [pid 4364] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4365] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4364] <... futex resumed>) = 0 [pid 4364] exit_group(0) = ? [pid 4365] +++ exited with 0 +++ [pid 4364] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4364, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17991", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17991", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17991/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17991/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17991/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17991") = 0 mkdir("./17992", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4366 ./strace-static-x86_64: Process 4366 attached [pid 4366] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4366] chdir("./17992") = 0 [pid 4366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4366] setpgid(0, 0) = 0 [pid 4366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4366] write(3, "1000", 4) = 4 [pid 4366] close(3) = 0 [pid 4366] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4366] write(1, "executing program\n", 18executing program ) = 18 [pid 4366] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4366] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4366] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4366] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4366] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4366] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4367 attached => {parent_tid=[4367]}, 88) = 4367 [pid 4367] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4367] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4367] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4366] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4366] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4367] <... futex resumed>) = 0 [pid 4367] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4366] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4367] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4367] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4366] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4367] <... futex resumed>) = 0 [pid 4367] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4367] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4366] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4366] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4367] <... futex resumed>) = 0 [pid 4367] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4367] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4366] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4366] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4367] <... futex resumed>) = 0 [pid 4366] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4367] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4367] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4366] <... futex resumed>) = 0 [pid 4367] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4366] exit_group(0) = ? [pid 4367] <... futex resumed>) = ? [pid 4367] +++ exited with 0 +++ [pid 4366] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17992", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17992", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17992/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17992/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17992/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17992") = 0 mkdir("./17993", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4368 ./strace-static-x86_64: Process 4368 attached [pid 4368] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4368] chdir("./17993") = 0 [pid 4368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4368] setpgid(0, 0) = 0 [pid 4368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4368] write(3, "1000", 4) = 4 [pid 4368] close(3) = 0 [pid 4368] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4368] write(1, "executing program\n", 18executing program ) = 18 [pid 4368] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4368] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4368] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4368] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4368] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4368] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4369 attached => {parent_tid=[4369]}, 88) = 4369 [pid 4369] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4369] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4368] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4369] <... futex resumed>) = 0 [pid 4369] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4369] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4369] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4368] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4368] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4369] <... futex resumed>) = 0 [pid 4369] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4369] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4369] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4368] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4368] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4369] <... futex resumed>) = 0 [pid 4369] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4369] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4369] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4368] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4368] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4369] <... futex resumed>) = 0 [pid 4368] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4369] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4369] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4368] <... futex resumed>) = 0 [pid 4369] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4368] exit_group(0) = ? [pid 4369] <... futex resumed>) = ? [pid 4369] +++ exited with 0 +++ [pid 4368] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17993", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17993", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17993/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17993/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17993/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17993") = 0 mkdir("./17994", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4370 ./strace-static-x86_64: Process 4370 attached [pid 4370] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4370] chdir("./17994") = 0 [pid 4370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4370] setpgid(0, 0) = 0 [pid 4370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4370] write(3, "1000", 4) = 4 [pid 4370] close(3) = 0 [pid 4370] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4370] write(1, "executing program\n", 18executing program ) = 18 [pid 4370] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4370] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4370] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4370] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4371 attached => {parent_tid=[4371]}, 88) = 4371 [pid 4371] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4371] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4371] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4370] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4370] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4371] <... futex resumed>) = 0 [pid 4371] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4371] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4371] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4370] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4370] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4371] <... futex resumed>) = 0 [pid 4371] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4371] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4371] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4370] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4370] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4371] <... futex resumed>) = 0 [pid 4371] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4371] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4371] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4370] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4370] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4371] <... futex resumed>) = 0 [pid 4370] <... futex resumed>) = 1 [pid 4370] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4371] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4371] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4370] <... futex resumed>) = 0 [pid 4371] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4370] exit_group(0) = ? [pid 4371] <... futex resumed>) = ? [pid 4371] +++ exited with 0 +++ [pid 4370] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17994", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17994", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17994/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17994/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17994/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17994") = 0 mkdir("./17995", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4372 ./strace-static-x86_64: Process 4372 attached [pid 4372] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4372] chdir("./17995") = 0 [pid 4372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4372] setpgid(0, 0) = 0 [pid 4372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4372] write(3, "1000", 4) = 4 [pid 4372] close(3) = 0 [pid 4372] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4372] write(1, "executing program\n", 18executing program ) = 18 [pid 4372] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4372] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4372] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4372] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4372] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4372] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4373 attached => {parent_tid=[4373]}, 88) = 4373 [pid 4373] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4373] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4373] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4372] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4372] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4373] <... futex resumed>) = 0 [pid 4373] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4372] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4373] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4373] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4372] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4373] <... futex resumed>) = 0 [pid 4373] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4373] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4372] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4372] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4373] <... futex resumed>) = 0 [pid 4373] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4373] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4372] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4372] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4373] <... futex resumed>) = 0 [pid 4373] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4373] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4372] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4372] exit_group(0) = ? [pid 4373] <... futex resumed>) = ? [pid 4373] +++ exited with 0 +++ [pid 4372] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17995", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17995", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17995/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17995/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17995/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17995") = 0 mkdir("./17996", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4374 ./strace-static-x86_64: Process 4374 attached [pid 4374] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4374] chdir("./17996") = 0 [pid 4374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4374] setpgid(0, 0) = 0 [pid 4374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4374] write(3, "1000", 4) = 4 [pid 4374] close(3) = 0 [pid 4374] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4374] write(1, "executing program\n", 18executing program ) = 18 [pid 4374] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4374] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4374] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4374] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4375 attached => {parent_tid=[4375]}, 88) = 4375 [pid 4375] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4375] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4375] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4374] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4375] <... futex resumed>) = 0 [pid 4375] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4375] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4375] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4374] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4374] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4375] <... futex resumed>) = 0 [pid 4375] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4374] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4375] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4375] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4374] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4375] <... futex resumed>) = 0 [pid 4375] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4375] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4374] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4375] <... futex resumed>) = 0 [pid 4375] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4374] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4375] <... futex resumed>) = 0 [pid 4375] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4375] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4375] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4374] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4374] exit_group(0) = ? [pid 4375] <... futex resumed>) = ? [pid 4375] +++ exited with 0 +++ [pid 4374] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17996", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17996", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17996/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17996/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17996/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17996") = 0 mkdir("./17997", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4376 ./strace-static-x86_64: Process 4376 attached [pid 4376] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4376] chdir("./17997") = 0 [pid 4376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4376] setpgid(0, 0) = 0 [pid 4376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4376] write(3, "1000", 4) = 4 [pid 4376] close(3) = 0 [pid 4376] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4376] write(1, "executing program\n", 18) = 18 [pid 4376] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4376] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4376] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4377 attached [pid 4377] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4377] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4377] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4376] <... clone3 resumed> => {parent_tid=[4377]}, 88) = 4377 [pid 4376] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4376] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4377] <... futex resumed>) = 0 [pid 4376] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4377] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4377] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4377] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4376] <... futex resumed>) = 0 [pid 4376] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4377] <... futex resumed>) = 0 [pid 4376] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4377] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4377] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4376] <... futex resumed>) = 0 [pid 4377] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4376] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4377] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4377] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4376] <... futex resumed>) = 0 [pid 4376] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4377] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4377] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4376] <... futex resumed>) = 0 [pid 4377] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4376] exit_group(0) = ? [pid 4377] <... futex resumed>) = ? [pid 4377] +++ exited with 0 +++ [pid 4376] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17997", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17997", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17997/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17997/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17997/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17997") = 0 mkdir("./17998", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4378 ./strace-static-x86_64: Process 4378 attached [pid 4378] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4378] chdir("./17998") = 0 [pid 4378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4378] setpgid(0, 0) = 0 [pid 4378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4378] write(3, "1000", 4) = 4 [pid 4378] close(3) = 0 [pid 4378] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4378] write(1, "executing program\n", 18executing program ) = 18 [pid 4378] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4378] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4378] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4378] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4379]}, 88) = 4379 [pid 4378] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4378] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4378] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4379 attached [pid 4379] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4379] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4379] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4379] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4378] <... futex resumed>) = 0 [pid 4379] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4378] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4378] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4379] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4379] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4378] <... futex resumed>) = 0 [pid 4378] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4378] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4379] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4379] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4378] <... futex resumed>) = 0 [pid 4379] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4378] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4378] <... futex resumed>) = 0 [pid 4378] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4379] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4379] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4378] <... futex resumed>) = 0 [pid 4379] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4378] exit_group(0) = ? [pid 4379] <... futex resumed>) = ? [pid 4379] +++ exited with 0 +++ [pid 4378] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17998", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17998", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17998/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17998/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17998/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17998") = 0 mkdir("./17999", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4380 ./strace-static-x86_64: Process 4380 attached [pid 4380] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4380] chdir("./17999") = 0 [pid 4380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4380] setpgid(0, 0) = 0 [pid 4380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4380] write(3, "1000", 4) = 4 [pid 4380] close(3) = 0 [pid 4380] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4380] write(1, "executing program\n", 18) = 18 [pid 4380] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4380] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4380] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4380] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4380] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4380] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4381 attached => {parent_tid=[4381]}, 88) = 4381 [pid 4381] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4381] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4381] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4380] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4381] <... futex resumed>) = 0 [pid 4381] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4380] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4381] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4381] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4381] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4380] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4381] <... futex resumed>) = 0 [pid 4381] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4380] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4381] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4381] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4381] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4380] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4381] <... futex resumed>) = 0 [pid 4380] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4381] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4381] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4380] <... futex resumed>) = 0 [pid 4380] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4381] write(-1, "0x0000000000000001", 18 [pid 4380] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4381] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4381] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4380] <... futex resumed>) = 0 [pid 4381] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4380] exit_group(0) = ? [pid 4381] <... futex resumed>) = ? [pid 4381] +++ exited with 0 +++ [pid 4380] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./17999", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17999", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./17999/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17999/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17999/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17999") = 0 mkdir("./18000", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4382 ./strace-static-x86_64: Process 4382 attached [pid 4382] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4382] chdir("./18000") = 0 [pid 4382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4382] setpgid(0, 0) = 0 [pid 4382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4382] write(3, "1000", 4) = 4 [pid 4382] close(3) = 0 [pid 4382] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4382] write(1, "executing program\n", 18) = 18 [pid 4382] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4382] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4382] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4382] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4382] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4382] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4383 attached => {parent_tid=[4383]}, 88) = 4383 [pid 4383] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4383] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4383] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4382] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4382] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4383] <... futex resumed>) = 0 [pid 4383] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4382] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4383] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4383] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4382] <... futex resumed>) = 0 [pid 4382] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4383] <... futex resumed>) = 0 [pid 4383] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4382] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4383] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4382] <... futex resumed>) = 0 [pid 4382] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4383] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4382] <... futex resumed>) = 0 [pid 4382] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4383] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4382] <... futex resumed>) = 0 [pid 4382] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4382] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4383] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4382] <... futex resumed>) = 0 [pid 4383] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4382] exit_group(0) = ? [pid 4383] <... futex resumed>) = ? [pid 4383] +++ exited with 0 +++ [pid 4382] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18000", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18000", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18000/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18000/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18000/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18000") = 0 mkdir("./18001", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4384 ./strace-static-x86_64: Process 4384 attached [pid 4384] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4384] chdir("./18001") = 0 [pid 4384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4384] setpgid(0, 0) = 0 [pid 4384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4384] write(3, "1000", 4) = 4 [pid 4384] close(3) = 0 [pid 4384] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4384] write(1, "executing program\n", 18) = 18 [pid 4384] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4384] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4384] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4384] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4384] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4384] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4385 attached => {parent_tid=[4385]}, 88) = 4385 [pid 4385] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4385] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4385] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4384] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4385] <... futex resumed>) = 0 [pid 4385] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4384] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4385] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4385] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4384] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4384] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4385] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4384] <... futex resumed>) = 0 [pid 4384] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4385] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4385] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4384] <... futex resumed>) = 0 [pid 4385] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4384] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4384] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4385] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4384] <... futex resumed>) = 0 [pid 4384] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4384] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4385] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4385] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4384] <... futex resumed>) = 0 [pid 4385] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4384] exit_group(0) = ? [pid 4385] <... futex resumed>) = ? [pid 4385] +++ exited with 0 +++ [pid 4384] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18001", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18001", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18001/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18001/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18001/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18001") = 0 mkdir("./18002", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4386 ./strace-static-x86_64: Process 4386 attached [pid 4386] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4386] chdir("./18002") = 0 [pid 4386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4386] setpgid(0, 0) = 0 [pid 4386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4386] write(3, "1000", 4) = 4 [pid 4386] close(3) = 0 [pid 4386] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4386] write(1, "executing program\n", 18executing program ) = 18 [pid 4386] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4386] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4386] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4386] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4386] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4386] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4387 attached => {parent_tid=[4387]}, 88) = 4387 [pid 4387] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4386] rt_sigprocmask(SIG_SETMASK, [], [pid 4387] <... set_robust_list resumed>) = 0 [pid 4387] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4387] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4386] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4386] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4387] <... futex resumed>) = 0 [pid 4387] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4387] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4387] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4386] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4386] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4387] <... futex resumed>) = 0 [pid 4387] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4387] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4387] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4386] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4386] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4387] <... futex resumed>) = 0 [pid 4386] <... futex resumed>) = 1 [pid 4387] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4386] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4387] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4387] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4387] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4386] <... futex resumed>) = 0 [pid 4387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4386] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4387] write(-1, "0x0000000000000001", 18 [pid 4386] <... futex resumed>) = 0 [pid 4387] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4386] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4387] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4386] <... futex resumed>) = 0 [pid 4387] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4386] exit_group(0) = ? [pid 4387] <... futex resumed>) = ? [pid 4387] +++ exited with 0 +++ [pid 4386] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4386, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18002", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18002", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18002/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18002/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18002/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18002") = 0 mkdir("./18003", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4388 ./strace-static-x86_64: Process 4388 attached [pid 4388] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4388] chdir("./18003") = 0 [pid 4388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4388] setpgid(0, 0) = 0 [pid 4388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4388] write(3, "1000", 4) = 4 [pid 4388] close(3) = 0 [pid 4388] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4388] write(1, "executing program\n", 18) = 18 [pid 4388] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4388] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4388] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4389 attached [pid 4389] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4389] rt_sigprocmask(SIG_SETMASK, [], [pid 4388] <... clone3 resumed> => {parent_tid=[4389]}, 88) = 4389 [pid 4389] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4389] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4388] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4389] <... futex resumed>) = 0 [pid 4388] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4389] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4389] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4388] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4388] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4389] <... futex resumed>) = 0 [pid 4388] <... futex resumed>) = 1 [pid 4389] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4388] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4389] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4388] <... futex resumed>) = 0 [pid 4389] <... futex resumed>) = 1 [pid 4388] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4389] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4388] <... futex resumed>) = 0 [pid 4388] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4389] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4388] <... futex resumed>) = 0 [pid 4388] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4389] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4388] <... futex resumed>) = 0 [pid 4389] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4388] exit_group(0) = ? [pid 4389] <... futex resumed>) = ? [pid 4389] +++ exited with 0 +++ [pid 4388] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18003", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18003", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18003/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18003/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18003/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18003") = 0 mkdir("./18004", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4390 ./strace-static-x86_64: Process 4390 attached [pid 4390] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4390] chdir("./18004") = 0 [pid 4390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4390] setpgid(0, 0) = 0 [pid 4390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4390] write(3, "1000", 4) = 4 [pid 4390] close(3) = 0 [pid 4390] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4390] write(1, "executing program\n", 18executing program ) = 18 [pid 4390] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4390] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4390] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4390] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4390] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4390] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4391 attached [pid 4391] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4391] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4391] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4390] <... clone3 resumed> => {parent_tid=[4391]}, 88) = 4391 [pid 4390] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4390] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4391] <... futex resumed>) = 0 [pid 4391] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4391] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4390] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4390] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4391] <... futex resumed>) = 0 [pid 4391] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4391] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4390] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4390] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4391] <... futex resumed>) = 0 [pid 4391] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4391] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4390] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4390] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4391] <... futex resumed>) = 0 [pid 4391] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4391] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4390] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4390] exit_group(0) = ? [pid 4391] <... futex resumed>) = ? [pid 4391] +++ exited with 0 +++ [pid 4390] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18004", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18004", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18004/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18004/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18004/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18004") = 0 mkdir("./18005", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4392 ./strace-static-x86_64: Process 4392 attached [pid 4392] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4392] chdir("./18005") = 0 [pid 4392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4392] setpgid(0, 0) = 0 [pid 4392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4392] write(3, "1000", 4) = 4 [pid 4392] close(3) = 0 [pid 4392] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4392] write(1, "executing program\n", 18executing program ) = 18 [pid 4392] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4392] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4392] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4392] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4392] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4393 attached => {parent_tid=[4393]}, 88) = 4393 [pid 4393] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4393] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4393] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4392] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4392] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4393] <... futex resumed>) = 0 [pid 4393] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4392] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4393] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4393] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4393] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4392] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4392] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4393] <... futex resumed>) = 0 [pid 4393] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4392] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4393] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4393] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4392] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4392] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4393] <... futex resumed>) = 0 [pid 4392] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4393] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4393] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4392] <... futex resumed>) = 0 [pid 4392] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4392] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4393] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4393] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4392] <... futex resumed>) = 0 [pid 4393] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4392] exit_group(0) = ? [pid 4393] <... futex resumed>) = ? [pid 4393] +++ exited with 0 +++ [pid 4392] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18005", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18005", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18005/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18005/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18005/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18005") = 0 mkdir("./18006", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4394 ./strace-static-x86_64: Process 4394 attached [pid 4394] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4394] chdir("./18006") = 0 [pid 4394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4394] setpgid(0, 0) = 0 [pid 4394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4394] write(3, "1000", 4) = 4 [pid 4394] close(3) = 0 [pid 4394] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4394] write(1, "executing program\n", 18) = 18 [pid 4394] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4394] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4394] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4394] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4394] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4394] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4395 attached => {parent_tid=[4395]}, 88) = 4395 [pid 4395] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4395] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4394] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4395] <... futex resumed>) = 0 [pid 4394] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4395] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4395] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4395] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4394] <... futex resumed>) = 0 [pid 4394] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4395] <... futex resumed>) = 0 [pid 4394] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4395] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4395] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4394] <... futex resumed>) = 0 [pid 4395] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4394] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4394] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4395] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4395] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4394] <... futex resumed>) = 0 [pid 4394] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4394] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4395] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4395] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4394] <... futex resumed>) = 0 [pid 4395] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4394] exit_group(0) = ? [pid 4395] <... futex resumed>) = ? [pid 4395] +++ exited with 0 +++ [pid 4394] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4394, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18006", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18006", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18006/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18006/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18006/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18006") = 0 mkdir("./18007", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4396 ./strace-static-x86_64: Process 4396 attached [pid 4396] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4396] chdir("./18007") = 0 [pid 4396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4396] setpgid(0, 0) = 0 [pid 4396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4396] write(3, "1000", 4) = 4 [pid 4396] close(3) = 0 [pid 4396] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4396] write(1, "executing program\n", 18executing program ) = 18 [pid 4396] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4396] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4396] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4396] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4396] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4397 attached => {parent_tid=[4397]}, 88) = 4397 [pid 4397] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4396] rt_sigprocmask(SIG_SETMASK, [], [pid 4397] rt_sigprocmask(SIG_SETMASK, [], [pid 4396] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4397] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4396] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4396] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4397] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4397] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4396] <... futex resumed>) = 0 [pid 4397] <... futex resumed>) = 1 [pid 4396] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4397] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4396] <... futex resumed>) = 0 [pid 4396] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4397] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4397] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4396] <... futex resumed>) = 0 [pid 4397] <... futex resumed>) = 1 [pid 4396] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4397] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4396] <... futex resumed>) = 0 [pid 4396] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4397] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4397] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4396] <... futex resumed>) = 0 [pid 4397] <... futex resumed>) = 1 [pid 4396] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4397] write(-1, "0x0000000000000001", 18 [pid 4396] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4397] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4397] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4396] <... futex resumed>) = 0 [pid 4397] <... futex resumed>) = 1 [pid 4396] exit_group(0 [pid 4397] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4396] <... exit_group resumed>) = ? [pid 4397] <... futex resumed>) = ? [pid 4397] +++ exited with 0 +++ [pid 4396] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18007", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18007", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18007/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18007/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18007/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18007") = 0 mkdir("./18008", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4399 attached , child_tidptr=0x55558931b690) = 4399 [pid 4399] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4399] chdir("./18008") = 0 [pid 4399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4399] setpgid(0, 0) = 0 [pid 4399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4399] write(3, "1000", 4) = 4 [pid 4399] close(3) = 0 [pid 4399] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4399] write(1, "executing program\n", 18executing program ) = 18 [pid 4399] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4399] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4399] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4399] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4399] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4399] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4400 attached => {parent_tid=[4400]}, 88) = 4400 [pid 4400] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4400] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4399] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4400] <... futex resumed>) = 0 [pid 4399] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4400] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4400] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4399] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4400] <... futex resumed>) = 0 [pid 4400] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4400] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4399] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4399] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4400] <... futex resumed>) = 0 [pid 4400] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4400] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4399] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4399] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4400] <... futex resumed>) = 0 [pid 4400] write(-1, "0x0000000000000001", 18 [pid 4399] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4400] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4400] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4399] exit_group(0) = ? [pid 4400] <... futex resumed>) = ? [pid 4400] +++ exited with 0 +++ [pid 4399] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4399, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18008", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18008", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18008/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18008/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18008/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18008") = 0 mkdir("./18009", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4401 ./strace-static-x86_64: Process 4401 attached [pid 4401] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4401] chdir("./18009") = 0 [pid 4401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4401] setpgid(0, 0) = 0 [pid 4401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4401] write(3, "1000", 4) = 4 [pid 4401] close(3) = 0 [pid 4401] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4401] write(1, "executing program\n", 18executing program ) = 18 [pid 4401] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4401] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4401] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4401] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4401] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4401] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4402 attached [pid 4402] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4402] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4401] <... clone3 resumed> => {parent_tid=[4402]}, 88) = 4402 [pid 4402] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4401] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4401] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4402] <... futex resumed>) = 0 [pid 4402] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4401] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4402] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4402] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4401] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4402] <... futex resumed>) = 0 [pid 4402] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4402] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4402] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4401] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4401] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4402] <... futex resumed>) = 0 [pid 4402] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4401] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4402] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4402] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4401] <... futex resumed>) = 0 [pid 4401] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4401] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4402] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4402] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4401] <... futex resumed>) = 0 [pid 4402] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4401] exit_group(0) = ? [pid 4402] <... futex resumed>) = ? [pid 4402] +++ exited with 0 +++ [pid 4401] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18009", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18009", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18009/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18009/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18009/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18009") = 0 mkdir("./18010", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4403 ./strace-static-x86_64: Process 4403 attached [pid 4403] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4403] chdir("./18010") = 0 [pid 4403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4403] setpgid(0, 0) = 0 [pid 4403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4403] write(3, "1000", 4) = 4 [pid 4403] close(3) = 0 [pid 4403] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4403] write(1, "executing program\n", 18) = 18 [pid 4403] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4403] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4403] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4403] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4403] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4404 attached [pid 4404] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4404] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4403] <... clone3 resumed> => {parent_tid=[4404]}, 88) = 4404 [pid 4403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4403] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4404] <... futex resumed>) = 0 [pid 4404] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4403] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4404] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4404] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4403] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4403] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4404] <... futex resumed>) = 0 [pid 4403] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4404] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4403] <... futex resumed>) = 0 [pid 4403] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4404] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4403] <... futex resumed>) = 0 [pid 4403] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4404] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4403] <... futex resumed>) = 0 [pid 4403] exit_group(0) = ? [pid 4404] +++ exited with 0 +++ [pid 4403] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18010", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18010", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18010/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18010/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18010/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18010") = 0 mkdir("./18011", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4405 ./strace-static-x86_64: Process 4405 attached [pid 4405] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4405] chdir("./18011") = 0 [pid 4405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4405] setpgid(0, 0) = 0 [pid 4405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4405] write(3, "1000", 4) = 4 [pid 4405] close(3) = 0 [pid 4405] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4405] write(1, "executing program\n", 18executing program ) = 18 [pid 4405] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4405] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4405] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4405] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4405] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4405] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4405] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4406 attached => {parent_tid=[4406]}, 88) = 4406 [pid 4406] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4406] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4406] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4405] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4405] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4406] <... futex resumed>) = 0 [pid 4406] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4405] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4406] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4406] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4405] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4406] <... futex resumed>) = 0 [pid 4406] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4406] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4405] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4405] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4406] <... futex resumed>) = 0 [pid 4406] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4406] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4405] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4405] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4406] <... futex resumed>) = 0 [pid 4406] write(-1, "0x0000000000000001", 18 [pid 4405] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4406] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4406] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4405] <... futex resumed>) = 0 [pid 4405] exit_group(0) = ? [pid 4406] +++ exited with 0 +++ [pid 4405] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18011", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18011", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18011/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18011/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18011/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18011") = 0 mkdir("./18012", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4407 ./strace-static-x86_64: Process 4407 attached [pid 4407] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4407] chdir("./18012") = 0 [pid 4407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4407] setpgid(0, 0) = 0 [pid 4407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4407] write(3, "1000", 4) = 4 [pid 4407] close(3) = 0 [pid 4407] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4407] write(1, "executing program\n", 18executing program ) = 18 [pid 4407] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4407] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4407] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4407] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4407] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4408 attached => {parent_tid=[4408]}, 88) = 4408 [pid 4408] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4407] rt_sigprocmask(SIG_SETMASK, [], [pid 4408] <... set_robust_list resumed>) = 0 [pid 4408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4408] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4407] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4407] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4408] <... futex resumed>) = 0 [pid 4407] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4408] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4408] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4407] <... futex resumed>) = 0 [pid 4407] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4407] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4408] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4408] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4407] <... futex resumed>) = 0 [pid 4407] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4407] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4408] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4408] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4407] <... futex resumed>) = 0 [pid 4407] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4407] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4408] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4408] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4407] <... futex resumed>) = 0 [pid 4407] exit_group(0) = ? [pid 4408] +++ exited with 0 +++ [pid 4407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4407, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18012", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18012", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18012/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18012/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18012/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18012") = 0 mkdir("./18013", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4409 ./strace-static-x86_64: Process 4409 attached [pid 4409] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4409] chdir("./18013") = 0 [pid 4409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4409] setpgid(0, 0) = 0 [pid 4409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4409] write(3, "1000", 4) = 4 [pid 4409] close(3) = 0 [pid 4409] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4409] write(1, "executing program\n", 18executing program ) = 18 [pid 4409] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4409] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4409] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4410 attached [pid 4410] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4410] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4409] <... clone3 resumed> => {parent_tid=[4410]}, 88) = 4410 [pid 4409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4409] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4410] <... futex resumed>) = 0 [pid 4410] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4410] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4410] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4409] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4409] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4410] <... futex resumed>) = 0 [pid 4410] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4409] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4410] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4410] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4409] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4410] <... futex resumed>) = 0 [pid 4409] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4410] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4410] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4409] <... futex resumed>) = 0 [pid 4409] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4410] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4410] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4409] <... futex resumed>) = 0 [pid 4410] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4409] exit_group(0) = ? [pid 4410] <... futex resumed>) = ? [pid 4410] +++ exited with 0 +++ [pid 4409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4409, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18013", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18013", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18013/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18013/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18013/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18013") = 0 mkdir("./18014", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4411 ./strace-static-x86_64: Process 4411 attached [pid 4411] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4411] chdir("./18014") = 0 [pid 4411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4411] setpgid(0, 0) = 0 [pid 4411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4411] write(3, "1000", 4) = 4 [pid 4411] close(3) = 0 [pid 4411] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4411] write(1, "executing program\n", 18) = 18 [pid 4411] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4411] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4411] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4411] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4412 attached => {parent_tid=[4412]}, 88) = 4412 [pid 4412] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4412] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4411] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4411] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4412] <... futex resumed>) = 0 [pid 4412] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4411] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4412] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4411] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4411] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4411] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4412] <... futex resumed>) = 0 [pid 4412] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4412] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4411] <... futex resumed>) = 0 [pid 4412] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4411] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4411] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4412] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4412] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4411] <... futex resumed>) = 0 [pid 4411] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4411] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4412] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4412] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4411] <... futex resumed>) = 0 [pid 4411] exit_group(0) = ? [pid 4412] +++ exited with 0 +++ [pid 4411] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4411, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18014", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18014", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18014/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18014/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18014/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18014") = 0 mkdir("./18015", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4413 ./strace-static-x86_64: Process 4413 attached [pid 4413] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4413] chdir("./18015") = 0 [pid 4413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4413] setpgid(0, 0) = 0 [pid 4413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4413] write(3, "1000", 4) = 4 [pid 4413] close(3) = 0 [pid 4413] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4413] write(1, "executing program\n", 18executing program ) = 18 [pid 4413] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4413] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4413] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4413] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4413] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4413] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4414 attached => {parent_tid=[4414]}, 88) = 4414 [pid 4414] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4413] rt_sigprocmask(SIG_SETMASK, [], [pid 4414] <... set_robust_list resumed>) = 0 [pid 4413] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4414] rt_sigprocmask(SIG_SETMASK, [], [pid 4413] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4414] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4413] <... futex resumed>) = 0 [pid 4413] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4414] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4414] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4413] <... futex resumed>) = 0 [pid 4414] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4413] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4413] <... futex resumed>) = 0 [pid 4414] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4413] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4414] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4414] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4413] <... futex resumed>) = 0 [pid 4414] <... futex resumed>) = 1 [pid 4413] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4414] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4413] <... futex resumed>) = 0 [pid 4413] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4414] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4414] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4413] <... futex resumed>) = 0 [pid 4413] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4413] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4414] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4414] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4413] <... futex resumed>) = 0 [pid 4414] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4413] exit_group(0) = ? [pid 4414] <... futex resumed>) = ? [pid 4414] +++ exited with 0 +++ [pid 4413] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18015", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18015", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18015/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18015/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18015/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18015") = 0 mkdir("./18016", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4415 ./strace-static-x86_64: Process 4415 attached [pid 4415] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4415] chdir("./18016") = 0 [pid 4415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4415] setpgid(0, 0) = 0 [pid 4415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4415] write(3, "1000", 4) = 4 [pid 4415] close(3) = 0 [pid 4415] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4415] write(1, "executing program\n", 18executing program ) = 18 [pid 4415] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4415] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4415] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4416 attached => {parent_tid=[4416]}, 88) = 4416 [pid 4416] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4415] rt_sigprocmask(SIG_SETMASK, [], [pid 4416] <... set_robust_list resumed>) = 0 [pid 4415] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4416] rt_sigprocmask(SIG_SETMASK, [], [pid 4415] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4416] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4415] <... futex resumed>) = 0 [pid 4415] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4416] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4415] <... futex resumed>) = 0 [pid 4416] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4415] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4416] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4415] <... futex resumed>) = 0 [pid 4416] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4415] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4416] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4415] <... futex resumed>) = 0 [pid 4416] <... futex resumed>) = 1 [pid 4415] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4416] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4415] <... futex resumed>) = 0 [pid 4415] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4416] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4415] <... futex resumed>) = 0 [pid 4416] <... futex resumed>) = 1 [pid 4415] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4416] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4415] <... futex resumed>) = 0 [pid 4416] <... futex resumed>) = 1 [pid 4415] exit_group(0 [pid 4416] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 (errno 18446744073709551414) [pid 4415] <... exit_group resumed>) = ? [pid 4416] +++ exited with 0 +++ [pid 4415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18016", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18016", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18016/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18016/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18016/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18016") = 0 mkdir("./18017", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4417 ./strace-static-x86_64: Process 4417 attached [pid 4417] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4417] chdir("./18017") = 0 [pid 4417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4417] setpgid(0, 0) = 0 [pid 4417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4417] write(3, "1000", 4) = 4 [pid 4417] close(3) = 0 [pid 4417] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4417] write(1, "executing program\n", 18executing program ) = 18 [pid 4417] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4417] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4417] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4417] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4417] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4417] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4418 attached [pid 4418] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4418] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4417] <... clone3 resumed> => {parent_tid=[4418]}, 88) = 4418 [pid 4417] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4417] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4417] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4418] <... futex resumed>) = 0 [pid 4418] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4418] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4417] <... futex resumed>) = 0 [pid 4417] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4417] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4418] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4418] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4417] <... futex resumed>) = 0 [pid 4417] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4417] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4418] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4418] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4417] <... futex resumed>) = 0 [pid 4417] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4417] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4418] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4418] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4417] <... futex resumed>) = 0 [pid 4417] exit_group(0) = ? [pid 4418] +++ exited with 0 +++ [pid 4417] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18017", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18017", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18017/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18017/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18017/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18017") = 0 mkdir("./18018", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4419 ./strace-static-x86_64: Process 4419 attached [pid 4419] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4419] chdir("./18018") = 0 [pid 4419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4419] setpgid(0, 0) = 0 [pid 4419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4419] write(3, "1000", 4) = 4 [pid 4419] close(3) = 0 [pid 4419] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4419] write(1, "executing program\n", 18executing program ) = 18 [pid 4419] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4419] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4419] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4419] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4419] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4419] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4420 attached => {parent_tid=[4420]}, 88) = 4420 [pid 4420] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4420] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4420] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4419] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4419] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4420] <... futex resumed>) = 0 [pid 4420] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4419] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4420] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4420] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4420] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4419] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4420] <... futex resumed>) = 0 [pid 4420] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4420] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4420] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4419] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4419] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4420] <... futex resumed>) = 0 [pid 4420] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4420] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4420] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4419] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4419] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4420] <... futex resumed>) = 0 [pid 4419] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4420] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4420] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4420] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4419] exit_group(0) = ? [pid 4420] <... futex resumed>) = ? [pid 4420] +++ exited with 0 +++ [pid 4419] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18018", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18018", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18018/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18018/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18018/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18018") = 0 mkdir("./18019", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4421 attached , child_tidptr=0x55558931b690) = 4421 [pid 4421] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4421] chdir("./18019") = 0 [pid 4421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4421] setpgid(0, 0) = 0 [pid 4421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4421] write(3, "1000", 4) = 4 [pid 4421] close(3) = 0 [pid 4421] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4421] write(1, "executing program\n", 18executing program ) = 18 [pid 4421] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4421] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4421] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4421] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4421] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4421] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4422 attached => {parent_tid=[4422]}, 88) = 4422 [pid 4422] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4421] rt_sigprocmask(SIG_SETMASK, [], [pid 4422] <... set_robust_list resumed>) = 0 [pid 4421] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4422] rt_sigprocmask(SIG_SETMASK, [], [pid 4421] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4422] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4421] <... futex resumed>) = 0 [pid 4421] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4422] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4421] <... futex resumed>) = 0 [pid 4422] <... futex resumed>) = 1 [pid 4421] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4422] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4421] <... futex resumed>) = 0 [pid 4421] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4422] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4421] <... futex resumed>) = 0 [pid 4422] <... futex resumed>) = 1 [pid 4421] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4422] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4421] <... futex resumed>) = 0 [pid 4421] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4422] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4421] <... futex resumed>) = 0 [pid 4422] <... futex resumed>) = 1 [pid 4421] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4422] write(-1, "0x0000000000000001", 18 [pid 4421] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4422] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4421] <... futex resumed>) = 0 [pid 4422] <... futex resumed>) = 1 [pid 4421] exit_group(0 [pid 4422] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4421] <... exit_group resumed>) = ? [pid 4422] <... futex resumed>) = ? [pid 4422] +++ exited with 0 +++ [pid 4421] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18019", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18019", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18019/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18019/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18019/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18019") = 0 mkdir("./18020", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4423 ./strace-static-x86_64: Process 4423 attached [pid 4423] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4423] chdir("./18020") = 0 [pid 4423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4423] setpgid(0, 0) = 0 [pid 4423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4423] write(3, "1000", 4) = 4 [pid 4423] close(3) = 0 [pid 4423] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4423] write(1, "executing program\n", 18executing program ) = 18 [pid 4423] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4423] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4423] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4423] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4423] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4423] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4423] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4424 attached => {parent_tid=[4424]}, 88) = 4424 [pid 4424] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4423] rt_sigprocmask(SIG_SETMASK, [], [pid 4424] <... set_robust_list resumed>) = 0 [pid 4423] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4424] rt_sigprocmask(SIG_SETMASK, [], [pid 4423] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4424] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4423] <... futex resumed>) = 0 [pid 4423] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4424] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4424] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4423] <... futex resumed>) = 0 [pid 4424] <... futex resumed>) = 1 [pid 4423] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4424] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4423] <... futex resumed>) = 0 [pid 4423] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4424] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4424] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4423] <... futex resumed>) = 0 [pid 4424] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4423] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4423] <... futex resumed>) = 0 [pid 4424] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4423] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4424] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4424] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4423] <... futex resumed>) = 0 [pid 4423] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4424] write(-1, "0x0000000000000001", 18 [pid 4423] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4424] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4424] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4423] <... futex resumed>) = 0 [pid 4424] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4423] exit_group(0) = ? [pid 4424] <... futex resumed>) = ? [pid 4424] +++ exited with 0 +++ [pid 4423] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18020", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18020", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18020/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18020/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18020/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18020") = 0 mkdir("./18021", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4425 ./strace-static-x86_64: Process 4425 attached [pid 4425] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4425] chdir("./18021") = 0 [pid 4425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4425] setpgid(0, 0) = 0 [pid 4425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4425] write(3, "1000", 4) = 4 [pid 4425] close(3) = 0 [pid 4425] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4425] write(1, "executing program\n", 18executing program ) = 18 [pid 4425] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4425] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4425] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4425] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4425] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4425] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4426 attached => {parent_tid=[4426]}, 88) = 4426 [pid 4426] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4425] rt_sigprocmask(SIG_SETMASK, [], [pid 4426] <... set_robust_list resumed>) = 0 [pid 4426] rt_sigprocmask(SIG_SETMASK, [], [pid 4425] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4425] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4426] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4425] <... futex resumed>) = 0 [pid 4425] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4426] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4426] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] <... futex resumed>) = 0 [pid 4426] <... futex resumed>) = 1 [pid 4425] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4426] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4425] <... futex resumed>) = 0 [pid 4425] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4426] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4426] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] <... futex resumed>) = 0 [pid 4426] <... futex resumed>) = 1 [pid 4425] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4426] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4425] <... futex resumed>) = 0 [pid 4425] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4426] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4426] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] <... futex resumed>) = 0 [pid 4426] <... futex resumed>) = 1 [pid 4425] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4425] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4426] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4426] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] <... futex resumed>) = 0 [pid 4426] <... futex resumed>) = 1 [pid 4425] exit_group(0 [pid 4426] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4425] <... exit_group resumed>) = ? [pid 4426] <... futex resumed>) = ? [pid 4426] +++ exited with 0 +++ [pid 4425] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4425, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18021", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18021", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18021/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18021/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18021/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18021") = 0 mkdir("./18022", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4427 ./strace-static-x86_64: Process 4427 attached [pid 4427] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4427] chdir("./18022") = 0 [pid 4427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4427] setpgid(0, 0) = 0 [pid 4427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4427] write(3, "1000", 4) = 4 [pid 4427] close(3) = 0 [pid 4427] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4427] write(1, "executing program\n", 18executing program ) = 18 [pid 4427] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4427] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4427] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4427] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4427] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4428 attached => {parent_tid=[4428]}, 88) = 4428 [pid 4428] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4428] rt_sigprocmask(SIG_SETMASK, [], [pid 4427] rt_sigprocmask(SIG_SETMASK, [], [pid 4428] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4428] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4427] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4427] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4428] <... futex resumed>) = 0 [pid 4428] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4428] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4428] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4427] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4427] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4428] <... futex resumed>) = 0 [pid 4428] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4428] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4428] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4427] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4427] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4428] <... futex resumed>) = 0 [pid 4428] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4428] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4428] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4427] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4427] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4428] <... futex resumed>) = 0 [pid 4427] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4428] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4428] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4427] <... futex resumed>) = 0 [pid 4428] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4427] exit_group(0) = ? [pid 4428] <... futex resumed>) = ? [pid 4428] +++ exited with 0 +++ [pid 4427] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18022", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18022", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18022/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18022/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18022/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18022") = 0 mkdir("./18023", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4429 ./strace-static-x86_64: Process 4429 attached [pid 4429] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4429] chdir("./18023") = 0 [pid 4429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4429] setpgid(0, 0) = 0 [pid 4429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4429] write(3, "1000", 4) = 4 [pid 4429] close(3) = 0 [pid 4429] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4429] write(1, "executing program\n", 18executing program ) = 18 [pid 4429] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4429] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4429] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4429] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4429] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4429] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4430 attached [pid 4430] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4429] <... clone3 resumed> => {parent_tid=[4430]}, 88) = 4430 [pid 4430] <... set_robust_list resumed>) = 0 [pid 4429] rt_sigprocmask(SIG_SETMASK, [], [pid 4430] rt_sigprocmask(SIG_SETMASK, [], [pid 4429] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4430] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4429] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4429] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4430] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4430] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4429] <... futex resumed>) = 0 [pid 4430] <... futex resumed>) = 1 [pid 4429] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4429] <... futex resumed>) = 0 [pid 4429] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4430] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4430] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4429] <... futex resumed>) = 0 [pid 4430] <... futex resumed>) = 1 [pid 4429] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4429] <... futex resumed>) = 0 [pid 4429] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4430] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4430] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4429] <... futex resumed>) = 0 [pid 4430] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4429] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4429] <... futex resumed>) = 0 [pid 4429] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4430] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4430] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4429] <... futex resumed>) = 0 [pid 4430] <... futex resumed>) = 1 [pid 4429] exit_group(0 [pid 4430] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4429] <... exit_group resumed>) = ? [pid 4430] <... futex resumed>) = ? [pid 4430] +++ exited with 0 +++ [pid 4429] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18023", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18023", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18023/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18023/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18023/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18023") = 0 mkdir("./18024", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4431 ./strace-static-x86_64: Process 4431 attached [pid 4431] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4431] chdir("./18024") = 0 [pid 4431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4431] setpgid(0, 0) = 0 [pid 4431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4431] write(3, "1000", 4) = 4 [pid 4431] close(3) = 0 [pid 4431] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4431] write(1, "executing program\n", 18) = 18 [pid 4431] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4431] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4431] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4431] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4431] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4431] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4432 attached => {parent_tid=[4432]}, 88) = 4432 [pid 4432] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4432] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4432] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4431] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4431] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4432] <... futex resumed>) = 0 [pid 4432] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4431] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4432] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4432] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4432] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4431] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4432] <... futex resumed>) = 0 [pid 4431] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4432] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4432] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4431] <... futex resumed>) = 0 [pid 4432] <... futex resumed>) = 1 [pid 4431] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4432] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4431] <... futex resumed>) = 0 [pid 4431] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4432] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4432] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4431] <... futex resumed>) = 0 [pid 4431] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4432] write(-1, "0x0000000000000001", 18 [pid 4431] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4432] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4432] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4431] <... futex resumed>) = 0 [pid 4432] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4431] exit_group(0) = ? [pid 4432] <... futex resumed>) = ? [pid 4432] +++ exited with 0 +++ [pid 4431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18024", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18024", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18024/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18024/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18024/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18024") = 0 mkdir("./18025", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4433 ./strace-static-x86_64: Process 4433 attached [pid 4433] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4433] chdir("./18025") = 0 [pid 4433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4433] setpgid(0, 0) = 0 [pid 4433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4433] write(3, "1000", 4) = 4 [pid 4433] close(3) = 0 [pid 4433] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4433] write(1, "executing program\n", 18executing program ) = 18 [pid 4433] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4433] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4433] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4433] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4433] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4434 attached [pid 4434] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4434] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4434] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4433] <... clone3 resumed> => {parent_tid=[4434]}, 88) = 4434 [pid 4433] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4433] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4434] <... futex resumed>) = 0 [pid 4433] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4434] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4434] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4433] <... futex resumed>) = 0 [pid 4434] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4433] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4433] <... futex resumed>) = 0 [pid 4434] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4433] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4434] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4434] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4433] <... futex resumed>) = 0 [pid 4434] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4433] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4433] <... futex resumed>) = 0 [pid 4434] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4433] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4434] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4434] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4433] <... futex resumed>) = 0 [pid 4434] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4433] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4433] <... futex resumed>) = 0 [pid 4434] write(-1, "0x0000000000000001", 18 [pid 4433] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4434] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4434] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4433] <... futex resumed>) = 0 [pid 4434] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4433] exit_group(0) = ? [pid 4434] <... futex resumed>) = ? [pid 4434] +++ exited with 0 +++ [pid 4433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18025", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18025", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18025/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18025/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18025/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18025") = 0 mkdir("./18026", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4435 ./strace-static-x86_64: Process 4435 attached [pid 4435] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4435] chdir("./18026") = 0 [pid 4435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4435] setpgid(0, 0) = 0 [pid 4435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4435] write(3, "1000", 4) = 4 [pid 4435] close(3) = 0 [pid 4435] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4435] write(1, "executing program\n", 18) = 18 [pid 4435] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4435] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4435] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4435] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4435] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4435] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4436 attached => {parent_tid=[4436]}, 88) = 4436 [pid 4436] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4435] rt_sigprocmask(SIG_SETMASK, [], [pid 4436] <... set_robust_list resumed>) = 0 [pid 4436] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4436] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4435] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4435] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4436] <... futex resumed>) = 0 [pid 4436] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4435] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4436] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4436] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4435] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4436] <... futex resumed>) = 0 [pid 4436] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4435] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4436] <... futex resumed>) = 0 [pid 4436] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4435] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4436] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4436] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4435] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4435] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4436] <... futex resumed>) = 0 [pid 4436] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4436] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4436] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4435] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4435] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4436] <... futex resumed>) = 0 [pid 4435] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4436] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4436] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4435] <... futex resumed>) = 0 [pid 4436] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4435] exit_group(0) = ? [pid 4436] <... futex resumed>) = ? [pid 4436] +++ exited with 0 +++ [pid 4435] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18026", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18026", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18026/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18026/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18026/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18026") = 0 mkdir("./18027", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4437 ./strace-static-x86_64: Process 4437 attached [pid 4437] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4437] chdir("./18027") = 0 [pid 4437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4437] setpgid(0, 0) = 0 [pid 4437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4437] write(3, "1000", 4) = 4 [pid 4437] close(3) = 0 [pid 4437] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4437] write(1, "executing program\n", 18executing program ) = 18 [pid 4437] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4437] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4437] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4437] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4437] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4437] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4438 attached => {parent_tid=[4438]}, 88) = 4438 [pid 4437] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4437] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4437] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4438] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4438] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4438] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4438] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4437] <... futex resumed>) = 0 [pid 4437] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4437] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4438] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4438] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4437] <... futex resumed>) = 0 [pid 4437] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4437] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4438] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4438] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4437] <... futex resumed>) = 0 [pid 4437] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4437] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4438] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4438] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4437] <... futex resumed>) = 0 [pid 4437] exit_group(0) = ? [pid 4438] +++ exited with 0 +++ [pid 4437] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18027", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18027", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18027/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18027/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18027/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18027") = 0 mkdir("./18028", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4439 ./strace-static-x86_64: Process 4439 attached [pid 4439] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4439] chdir("./18028") = 0 [pid 4439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4439] setpgid(0, 0) = 0 [pid 4439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4439] write(3, "1000", 4) = 4 [pid 4439] close(3) = 0 [pid 4439] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4439] write(1, "executing program\n", 18) = 18 [pid 4439] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4439] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4439] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4439] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4439] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4440]}, 88) = 4440 [pid 4439] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4439] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4440 attached [pid 4440] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4440] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4440] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4440] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4439] <... futex resumed>) = 0 [pid 4439] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4440] <... futex resumed>) = 1 [pid 4440] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4440] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4439] <... futex resumed>) = 0 [pid 4439] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4440] <... futex resumed>) = 1 [pid 4440] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4440] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4439] <... futex resumed>) = 0 [pid 4439] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4440] <... futex resumed>) = 1 [pid 4440] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4440] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4439] <... futex resumed>) = 0 [pid 4439] exit_group(0) = ? [pid 4440] +++ exited with 0 +++ [pid 4439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18028", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18028", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18028/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18028/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18028/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18028") = 0 mkdir("./18029", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4441 ./strace-static-x86_64: Process 4441 attached [pid 4441] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4441] chdir("./18029") = 0 [pid 4441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4441] setpgid(0, 0) = 0 [pid 4441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4441] write(3, "1000", 4) = 4 [pid 4441] close(3) = 0 [pid 4441] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4441] write(1, "executing program\n", 18executing program ) = 18 [pid 4441] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4441] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4441] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4441] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4441] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4441] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4442 attached => {parent_tid=[4442]}, 88) = 4442 [pid 4442] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4442] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4442] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4441] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4441] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4442] <... futex resumed>) = 0 [pid 4442] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4441] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4442] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4442] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4441] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4442] <... futex resumed>) = 0 [pid 4441] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4442] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4442] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4441] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4442] <... futex resumed>) = 0 [pid 4442] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4442] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4441] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4441] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4442] <... futex resumed>) = 0 [pid 4441] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4442] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4442] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4441] exit_group(0) = ? [pid 4442] <... futex resumed>) = ? [pid 4442] +++ exited with 0 +++ [pid 4441] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18029", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18029", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18029/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18029/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18029/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18029") = 0 mkdir("./18030", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4443 ./strace-static-x86_64: Process 4443 attached [pid 4443] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4443] chdir("./18030") = 0 [pid 4443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4443] setpgid(0, 0) = 0 [pid 4443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4443] write(3, "1000", 4) = 4 [pid 4443] close(3) = 0 [pid 4443] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4443] write(1, "executing program\n", 18executing program ) = 18 [pid 4443] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4443] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4443] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4443] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4443] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4443] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4444 attached => {parent_tid=[4444]}, 88) = 4444 [pid 4443] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4443] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4443] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4444] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4444] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4444] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4444] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4443] <... futex resumed>) = 0 [pid 4443] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4443] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4444] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4444] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4443] <... futex resumed>) = 0 [pid 4443] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4443] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4444] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4444] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4443] <... futex resumed>) = 0 [pid 4443] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4443] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4444] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4444] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4443] <... futex resumed>) = 0 [pid 4443] exit_group(0) = ? [pid 4444] +++ exited with 0 +++ [pid 4443] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18030", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18030", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18030/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18030/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18030/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18030") = 0 mkdir("./18031", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4445 attached , child_tidptr=0x55558931b690) = 4445 [pid 4445] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4445] chdir("./18031") = 0 [pid 4445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4445] setpgid(0, 0) = 0 [pid 4445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4445] write(3, "1000", 4) = 4 [pid 4445] close(3) = 0 [pid 4445] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4445] write(1, "executing program\n", 18) = 18 [pid 4445] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4445] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4445] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4445] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4445] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4445] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4446 attached => {parent_tid=[4446]}, 88) = 4446 [pid 4446] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4445] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4445] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4446] <... set_robust_list resumed>) = 0 [pid 4446] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4446] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4446] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4445] <... futex resumed>) = 0 [pid 4445] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4446] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4446] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4445] <... futex resumed>) = 0 [pid 4445] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4446] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4445] <... futex resumed>) = 0 [pid 4445] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4446] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4446] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4445] <... futex resumed>) = 0 [pid 4445] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4446] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4446] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4445] <... futex resumed>) = 0 [pid 4446] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4445] exit_group(0) = ? [pid 4446] <... futex resumed>) = ? [pid 4446] +++ exited with 0 +++ [pid 4445] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18031", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18031", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18031/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18031/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18031/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18031") = 0 mkdir("./18032", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4447 ./strace-static-x86_64: Process 4447 attached [pid 4447] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4447] chdir("./18032") = 0 [pid 4447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4447] setpgid(0, 0) = 0 [pid 4447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4447] write(3, "1000", 4) = 4 [pid 4447] close(3) = 0 [pid 4447] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4447] write(1, "executing program\n", 18executing program ) = 18 [pid 4447] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4447] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4447] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4447] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4447] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4447] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4447] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4448 attached => {parent_tid=[4448]}, 88) = 4448 [pid 4448] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4448] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4448] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4447] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4447] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4448] <... futex resumed>) = 0 [pid 4448] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4447] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4448] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4448] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4447] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4447] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4448] <... futex resumed>) = 0 [pid 4448] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4447] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4448] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4447] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4447] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4448] <... futex resumed>) = 0 [pid 4448] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4448] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4447] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4447] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4448] <... futex resumed>) = 0 [pid 4448] write(-1, "0x0000000000000001", 18 [pid 4447] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4448] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4448] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4447] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4447] exit_group(0) = ? [pid 4448] <... futex resumed>) = ? [pid 4448] +++ exited with 0 +++ [pid 4447] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18032", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18032", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18032/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18032/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18032/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18032") = 0 mkdir("./18033", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4449 ./strace-static-x86_64: Process 4449 attached [pid 4449] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4449] chdir("./18033") = 0 [pid 4449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4449] setpgid(0, 0) = 0 [pid 4449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4449] write(3, "1000", 4) = 4 [pid 4449] close(3) = 0 [pid 4449] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4449] write(1, "executing program\n", 18executing program ) = 18 [pid 4449] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4449] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4449] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4449] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4449] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4449] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4450 attached => {parent_tid=[4450]}, 88) = 4450 [pid 4450] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4449] rt_sigprocmask(SIG_SETMASK, [], [pid 4450] <... set_robust_list resumed>) = 0 [pid 4449] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4450] rt_sigprocmask(SIG_SETMASK, [], [pid 4449] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4450] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4449] <... futex resumed>) = 0 [pid 4450] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4449] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4450] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4450] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4449] <... futex resumed>) = 0 [pid 4449] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4449] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4450] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4450] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4449] <... futex resumed>) = 0 [pid 4449] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4449] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4450] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4450] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4449] <... futex resumed>) = 0 [pid 4449] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4449] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4450] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4450] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4449] <... futex resumed>) = 0 [pid 4449] exit_group(0) = ? [pid 4450] +++ exited with 0 +++ [pid 4449] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18033", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18033", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18033/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18033/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18033/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18033") = 0 mkdir("./18034", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4451 ./strace-static-x86_64: Process 4451 attached [pid 4451] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4451] chdir("./18034") = 0 [pid 4451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4451] setpgid(0, 0) = 0 [pid 4451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4451] write(3, "1000", 4) = 4 [pid 4451] close(3) = 0 [pid 4451] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4451] write(1, "executing program\n", 18) = 18 [pid 4451] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4451] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4451] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4451] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4451] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4452]}, 88) = 4452 [pid 4451] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4451] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4452 attached [pid 4452] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4452] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4452] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4452] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4451] <... futex resumed>) = 0 [pid 4451] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4452] <... futex resumed>) = 1 [pid 4452] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4452] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4451] <... futex resumed>) = 0 [pid 4451] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4452] <... futex resumed>) = 1 [pid 4452] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4452] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4451] <... futex resumed>) = 0 [pid 4451] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4452] <... futex resumed>) = 1 [pid 4452] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4452] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4451] <... futex resumed>) = 0 [pid 4451] exit_group(0) = ? [pid 4452] <... futex resumed>) = ? [pid 4452] +++ exited with 0 +++ [pid 4451] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18034", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18034", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18034/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18034/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18034/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18034") = 0 mkdir("./18035", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4453 attached , child_tidptr=0x55558931b690) = 4453 [pid 4453] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4453] chdir("./18035") = 0 [pid 4453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4453] setpgid(0, 0) = 0 [pid 4453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4453] write(3, "1000", 4) = 4 [pid 4453] close(3) = 0 [pid 4453] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4453] write(1, "executing program\n", 18executing program ) = 18 [pid 4453] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4453] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4453] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4453] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4453] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4453] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4454 attached => {parent_tid=[4454]}, 88) = 4454 [pid 4454] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4454] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4454] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4453] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4453] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4454] <... futex resumed>) = 0 [pid 4454] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4454] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4453] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4453] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4454] <... futex resumed>) = 0 [pid 4454] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4454] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4453] <... futex resumed>) = 1 [pid 4453] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4453] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4454] <... futex resumed>) = 0 [pid 4454] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4454] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4453] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4453] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4454] <... futex resumed>) = 0 [pid 4454] write(-1, "0x0000000000000001", 18 [pid 4453] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4454] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4454] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4453] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4454] <... futex resumed>) = 0 [pid 4454] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4453] exit_group(0) = ? [pid 4454] <... futex resumed>) = ? [pid 4454] +++ exited with 0 +++ [pid 4453] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4453, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18035", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18035", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18035/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18035/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18035/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18035") = 0 mkdir("./18036", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4455 attached , child_tidptr=0x55558931b690) = 4455 [pid 4455] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4455] chdir("./18036") = 0 [pid 4455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4455] setpgid(0, 0) = 0 [pid 4455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4455] write(3, "1000", 4) = 4 [pid 4455] close(3) = 0 [pid 4455] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4455] write(1, "executing program\n", 18) = 18 [pid 4455] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4455] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4455] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4455] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4455] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4455] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4456 attached => {parent_tid=[4456]}, 88) = 4456 [pid 4455] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4455] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4455] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4456] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4456] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4456] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4455] <... futex resumed>) = 0 [pid 4455] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4455] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4456] <... futex resumed>) = 1 [pid 4456] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4456] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4455] <... futex resumed>) = 0 [pid 4455] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4455] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4456] <... futex resumed>) = 1 [pid 4456] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4456] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4455] <... futex resumed>) = 0 [pid 4455] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4455] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4456] <... futex resumed>) = 1 [pid 4456] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4456] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4455] <... futex resumed>) = 0 [pid 4455] exit_group(0) = ? [pid 4456] <... futex resumed>) = ? [pid 4456] +++ exited with 0 +++ [pid 4455] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4455, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18036", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18036", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18036/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18036/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18036/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18036") = 0 mkdir("./18037", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4457 ./strace-static-x86_64: Process 4457 attached [pid 4457] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4457] chdir("./18037") = 0 [pid 4457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4457] setpgid(0, 0) = 0 [pid 4457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4457] write(3, "1000", 4) = 4 [pid 4457] close(3) = 0 [pid 4457] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4457] write(1, "executing program\n", 18) = 18 [pid 4457] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4457] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4457] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4457] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4457] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4458 attached => {parent_tid=[4458]}, 88) = 4458 [pid 4457] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4457] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4458] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4458] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4458] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4457] <... futex resumed>) = 0 [pid 4457] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4458] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4457] <... futex resumed>) = 0 [pid 4457] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4458] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4457] <... futex resumed>) = 0 [pid 4457] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4458] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4457] <... futex resumed>) = 0 [pid 4457] exit_group(0) = ? [pid 4458] +++ exited with 0 +++ [pid 4457] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18037", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18037", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18037/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18037/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18037/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18037") = 0 mkdir("./18038", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4459 ./strace-static-x86_64: Process 4459 attached [pid 4459] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4459] chdir("./18038") = 0 [pid 4459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4459] setpgid(0, 0) = 0 [pid 4459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4459] write(3, "1000", 4) = 4 [pid 4459] close(3) = 0 [pid 4459] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4459] write(1, "executing program\n", 18) = 18 [pid 4459] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4459] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4459] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4459] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4459] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4459] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4460 attached => {parent_tid=[4460]}, 88) = 4460 [pid 4459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4459] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4459] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4460] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4460] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4460] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4460] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4459] <... futex resumed>) = 0 [pid 4459] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4459] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4460] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4460] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4459] <... futex resumed>) = 0 [pid 4459] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4459] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4460] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4460] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4460] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4459] <... futex resumed>) = 0 [pid 4459] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4459] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4460] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4460] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4460] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4459] <... futex resumed>) = 0 [pid 4459] exit_group(0) = ? [pid 4460] +++ exited with 0 +++ [pid 4459] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18038", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18038", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18038/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18038/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18038/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18038") = 0 mkdir("./18039", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4461 ./strace-static-x86_64: Process 4461 attached [pid 4461] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4461] chdir("./18039") = 0 [pid 4461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4461] setpgid(0, 0) = 0 [pid 4461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4461] write(3, "1000", 4) = 4 [pid 4461] close(3) = 0 [pid 4461] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4461] write(1, "executing program\n", 18executing program ) = 18 [pid 4461] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4461] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4461] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4461] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4461] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4461] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4462]}, 88) = 4462 [pid 4461] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4461] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4461] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4462 attached [pid 4462] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4462] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4462] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4462] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4461] <... futex resumed>) = 0 [pid 4461] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4461] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4462] <... futex resumed>) = 1 [pid 4462] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4462] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4461] <... futex resumed>) = 0 [pid 4461] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4461] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4462] <... futex resumed>) = 1 [pid 4462] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4462] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4461] <... futex resumed>) = 0 [pid 4461] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4461] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4462] <... futex resumed>) = 1 [pid 4462] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4462] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4461] <... futex resumed>) = 0 [pid 4461] exit_group(0) = ? [pid 4462] <... futex resumed>) = ? [pid 4462] +++ exited with 0 +++ [pid 4461] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4461, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18039", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18039", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18039/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18039/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18039/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18039") = 0 mkdir("./18040", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4463 ./strace-static-x86_64: Process 4463 attached [pid 4463] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4463] chdir("./18040") = 0 [pid 4463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4463] setpgid(0, 0) = 0 [pid 4463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4463] write(3, "1000", 4) = 4 [pid 4463] close(3) = 0 [pid 4463] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4463] write(1, "executing program\n", 18executing program ) = 18 [pid 4463] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4463] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4463] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4463] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4463] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4464 attached => {parent_tid=[4464]}, 88) = 4464 [pid 4464] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4463] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4463] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] <... set_robust_list resumed>) = 0 [pid 4464] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4464] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4464] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4463] <... futex resumed>) = 0 [pid 4463] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4464] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4463] <... futex resumed>) = 0 [pid 4463] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4464] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4463] <... futex resumed>) = 0 [pid 4463] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4464] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4463] <... futex resumed>) = 0 [pid 4463] exit_group(0) = ? [pid 4464] +++ exited with 0 +++ [pid 4463] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18040", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18040", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18040/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18040/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18040/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18040") = 0 mkdir("./18041", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4465 ./strace-static-x86_64: Process 4465 attached [pid 4465] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4465] chdir("./18041") = 0 [pid 4465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4465] setpgid(0, 0) = 0 [pid 4465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4465] write(3, "1000", 4) = 4 [pid 4465] close(3) = 0 [pid 4465] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4465] write(1, "executing program\n", 18executing program ) = 18 [pid 4465] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4465] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4465] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4465] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4465] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4465] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4466 attached [pid 4466] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4466] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4466] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4465] <... clone3 resumed> => {parent_tid=[4466]}, 88) = 4466 [pid 4465] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4465] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4466] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4466] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4465] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4465] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4466] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4466] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4465] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4465] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4466] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4466] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4465] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4465] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4466] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4466] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4465] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4465] exit_group(0) = ? [pid 4466] <... futex resumed>) = ? [pid 4466] +++ exited with 0 +++ [pid 4465] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18041", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18041", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18041/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18041/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18041/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18041") = 0 mkdir("./18042", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4467 ./strace-static-x86_64: Process 4467 attached [pid 4467] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4467] chdir("./18042") = 0 [pid 4467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4467] setpgid(0, 0) = 0 [pid 4467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4467] write(3, "1000", 4) = 4 [pid 4467] close(3) = 0 [pid 4467] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4467] write(1, "executing program\n", 18) = 18 [pid 4467] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4467] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4467] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4467] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4467] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4467] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4468 attached => {parent_tid=[4468]}, 88) = 4468 [pid 4468] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4467] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4468] <... set_robust_list resumed>) = 0 [pid 4467] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4468] rt_sigprocmask(SIG_SETMASK, [], [pid 4467] <... futex resumed>) = 0 [pid 4468] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4468] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4467] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4468] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4468] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4467] <... futex resumed>) = 0 [pid 4467] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4467] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4468] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4468] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4467] <... futex resumed>) = 0 [pid 4467] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4467] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4468] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4468] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4467] <... futex resumed>) = 0 [pid 4467] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4467] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4468] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4468] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4467] <... futex resumed>) = 0 [pid 4467] exit_group(0) = ? [pid 4468] +++ exited with 0 +++ [pid 4467] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18042", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18042", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18042/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18042/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18042/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18042") = 0 mkdir("./18043", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4469 ./strace-static-x86_64: Process 4469 attached [pid 4469] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4469] chdir("./18043") = 0 [pid 4469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4469] setpgid(0, 0) = 0 [pid 4469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4469] write(3, "1000", 4) = 4 [pid 4469] close(3) = 0 [pid 4469] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4469] write(1, "executing program\n", 18executing program ) = 18 [pid 4469] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4469] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4469] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4469] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4469] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4470 attached => {parent_tid=[4470]}, 88) = 4470 [pid 4470] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4470] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4469] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4470] <... futex resumed>) = 0 [pid 4470] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4470] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4470] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4469] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4469] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4470] <... futex resumed>) = 0 [pid 4470] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4470] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4470] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4469] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4469] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4470] <... futex resumed>) = 0 [pid 4470] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4470] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4470] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4469] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4469] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4470] <... futex resumed>) = 0 [pid 4470] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4470] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4470] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4469] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4469] exit_group(0) = ? [pid 4470] <... futex resumed>) = ? [pid 4470] +++ exited with 0 +++ [pid 4469] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18043", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18043", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18043/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18043/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18043/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18043") = 0 mkdir("./18044", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4471 ./strace-static-x86_64: Process 4471 attached [pid 4471] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4471] chdir("./18044") = 0 [pid 4471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4471] setpgid(0, 0) = 0 [pid 4471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4471] write(3, "1000", 4) = 4 [pid 4471] close(3) = 0 [pid 4471] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4471] write(1, "executing program\n", 18) = 18 [pid 4471] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4471] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4471] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4471] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4471] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4471] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4472 attached => {parent_tid=[4472]}, 88) = 4472 [pid 4471] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4471] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4471] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4472] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4472] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4472] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4471] <... futex resumed>) = 0 [pid 4471] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4471] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4472] <... futex resumed>) = 1 [pid 4472] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4472] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4471] <... futex resumed>) = 0 [pid 4471] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4471] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4472] <... futex resumed>) = 1 [pid 4472] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4472] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4471] <... futex resumed>) = 0 [pid 4471] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4471] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4472] <... futex resumed>) = 1 [pid 4472] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4472] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4471] <... futex resumed>) = 0 [pid 4471] exit_group(0) = ? [pid 4472] <... futex resumed>) = ? [pid 4472] +++ exited with 0 +++ [pid 4471] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18044", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18044", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18044/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18044/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18044/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18044") = 0 mkdir("./18045", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4473 ./strace-static-x86_64: Process 4473 attached [pid 4473] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4473] chdir("./18045") = 0 [pid 4473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4473] setpgid(0, 0) = 0 [pid 4473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4473] write(3, "1000", 4) = 4 [pid 4473] close(3) = 0 [pid 4473] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4473] write(1, "executing program\n", 18) = 18 [pid 4473] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4473] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4473] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4473] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4473] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4473] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4474 attached => {parent_tid=[4474]}, 88) = 4474 [pid 4473] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4473] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4474] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4473] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4474] <... set_robust_list resumed>) = 0 [pid 4474] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4474] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4474] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4473] <... futex resumed>) = 0 [pid 4474] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4473] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4474] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4473] <... futex resumed>) = 0 [pid 4474] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4473] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4474] <... futex resumed>) = 0 [pid 4473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4474] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4473] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4474] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4473] <... futex resumed>) = 0 [pid 4474] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4473] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4474] <... futex resumed>) = 0 [pid 4473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4474] write(-1, "0x0000000000000001", 18 [pid 4473] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4474] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4473] <... futex resumed>) = 0 [pid 4474] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4473] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4474] <... futex resumed>) = 0 [pid 4473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4474] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4473] exit_group(0 [pid 4474] <... futex resumed>) = ? [pid 4473] <... exit_group resumed>) = ? [pid 4474] +++ exited with 0 +++ [pid 4473] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18045", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18045", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18045/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18045/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18045/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18045") = 0 mkdir("./18046", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4475 attached , child_tidptr=0x55558931b690) = 4475 [pid 4475] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4475] chdir("./18046") = 0 [pid 4475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4475] setpgid(0, 0) = 0 [pid 4475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4475] write(3, "1000", 4) = 4 [pid 4475] close(3) = 0 [pid 4475] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4475] write(1, "executing program\n", 18executing program ) = 18 [pid 4475] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4475] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4475] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4475] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4475] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4476 attached [pid 4476] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4476] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4476] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4475] <... clone3 resumed> => {parent_tid=[4476]}, 88) = 4476 [pid 4475] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4475] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4476] <... futex resumed>) = 0 [pid 4476] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4476] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4475] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4476] <... futex resumed>) = 0 [pid 4476] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4475] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4475] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4476] <... futex resumed>) = 0 [pid 4475] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4476] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4476] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4475] <... futex resumed>) = 0 [pid 4475] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4476] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4476] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4475] <... futex resumed>) = 0 [pid 4475] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4476] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4476] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4475] <... futex resumed>) = 0 [pid 4475] exit_group(0) = ? [pid 4476] +++ exited with 0 +++ [pid 4475] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18046", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18046", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18046/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18046/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18046/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18046") = 0 mkdir("./18047", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4477 attached , child_tidptr=0x55558931b690) = 4477 [pid 4477] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4477] chdir("./18047") = 0 [pid 4477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4477] setpgid(0, 0) = 0 [pid 4477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4477] write(3, "1000", 4) = 4 [pid 4477] close(3) = 0 [pid 4477] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4477] write(1, "executing program\n", 18executing program ) = 18 [pid 4477] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4477] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4477] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4477] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4477] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4477] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4478 attached [pid 4478] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4478] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4478] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4477] <... clone3 resumed> => {parent_tid=[4478]}, 88) = 4478 [pid 4477] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4477] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4478] <... futex resumed>) = 0 [pid 4477] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4478] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4478] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4477] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4478] <... futex resumed>) = 0 [pid 4478] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4477] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4478] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4477] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4478] <... futex resumed>) = 0 [pid 4478] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4478] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4477] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4477] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4478] <... futex resumed>) = 0 [pid 4477] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4478] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4478] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4477] exit_group(0) = ? [pid 4478] <... futex resumed>) = ? [pid 4478] +++ exited with 0 +++ [pid 4477] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18047", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18047", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18047/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18047/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18047/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18047") = 0 mkdir("./18048", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4479 ./strace-static-x86_64: Process 4479 attached [pid 4479] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4479] chdir("./18048") = 0 [pid 4479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4479] setpgid(0, 0) = 0 [pid 4479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4479] write(3, "1000", 4) = 4 [pid 4479] close(3) = 0 [pid 4479] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4479] write(1, "executing program\n", 18) = 18 [pid 4479] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4479] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4479] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4479] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4479] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4479] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4479] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4480 attached [pid 4480] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4479] <... clone3 resumed> => {parent_tid=[4480]}, 88) = 4480 [pid 4480] <... set_robust_list resumed>) = 0 [pid 4479] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4479] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4479] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4480] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4480] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4480] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4479] <... futex resumed>) = 0 [pid 4479] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4479] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4480] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4480] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4479] <... futex resumed>) = 0 [pid 4479] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4479] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4480] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4480] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4479] <... futex resumed>) = 0 [pid 4479] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4479] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4480] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4480] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4479] <... futex resumed>) = 0 [pid 4479] exit_group(0) = ? [pid 4480] +++ exited with 0 +++ [pid 4479] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4479, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18048", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18048", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18048/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18048/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18048/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18048") = 0 mkdir("./18049", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4481 attached , child_tidptr=0x55558931b690) = 4481 [pid 4481] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4481] chdir("./18049") = 0 [pid 4481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4481] setpgid(0, 0) = 0 [pid 4481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4481] write(3, "1000", 4) = 4 [pid 4481] close(3) = 0 [pid 4481] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4481] write(1, "executing program\n", 18executing program ) = 18 [pid 4481] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4481] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4481] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4481] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4481] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4482 attached => {parent_tid=[4482]}, 88) = 4482 [pid 4482] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4482] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4482] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4481] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4481] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4482] <... futex resumed>) = 0 [pid 4482] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4481] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4482] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4482] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4481] <... futex resumed>) = 0 [pid 4482] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4481] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4482] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4482] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4481] <... futex resumed>) = 0 [pid 4482] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4481] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4482] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4482] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4481] <... futex resumed>) = 0 [pid 4481] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4482] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4482] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4481] <... futex resumed>) = 0 [pid 4482] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4481] exit_group(0) = ? [pid 4482] <... futex resumed>) = ? [pid 4482] +++ exited with 0 +++ [pid 4481] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4481, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18049", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18049", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18049/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18049/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18049/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18049") = 0 mkdir("./18050", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4483 ./strace-static-x86_64: Process 4483 attached [pid 4483] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4483] chdir("./18050") = 0 [pid 4483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4483] setpgid(0, 0) = 0 [pid 4483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4483] write(3, "1000", 4) = 4 [pid 4483] close(3) = 0 [pid 4483] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4483] write(1, "executing program\n", 18) = 18 [pid 4483] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4483] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4483] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4483] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4483] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4483] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4484 attached [pid 4484] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4483] <... clone3 resumed> => {parent_tid=[4484]}, 88) = 4484 [pid 4483] rt_sigprocmask(SIG_SETMASK, [], [pid 4484] <... set_robust_list resumed>) = 0 [pid 4483] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4484] rt_sigprocmask(SIG_SETMASK, [], [pid 4483] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4484] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4483] <... futex resumed>) = 0 [pid 4484] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4483] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4484] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4484] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4483] <... futex resumed>) = 0 [pid 4483] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4483] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4484] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4484] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4483] <... futex resumed>) = 0 [pid 4483] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4483] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4484] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4484] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4483] <... futex resumed>) = 0 [pid 4483] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4483] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4484] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4484] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4483] <... futex resumed>) = 0 [pid 4483] exit_group(0) = ? [pid 4484] +++ exited with 0 +++ [pid 4483] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4483, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18050", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18050", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18050/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18050/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18050/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18050") = 0 mkdir("./18051", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4485 ./strace-static-x86_64: Process 4485 attached [pid 4485] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4485] chdir("./18051") = 0 [pid 4485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4485] setpgid(0, 0) = 0 [pid 4485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4485] write(3, "1000", 4) = 4 [pid 4485] close(3) = 0 [pid 4485] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4485] write(1, "executing program\n", 18executing program ) = 18 [pid 4485] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4485] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4485] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4485] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4485] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4485] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4485] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4486]}, 88) = 4486 [pid 4485] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4485] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4485] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4486 attached [pid 4486] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4486] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4486] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4486] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4485] <... futex resumed>) = 0 [pid 4485] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4485] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4486] <... futex resumed>) = 1 [pid 4486] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4486] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4485] <... futex resumed>) = 0 [pid 4485] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4485] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4486] <... futex resumed>) = 1 [pid 4486] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4486] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4485] <... futex resumed>) = 0 [pid 4485] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4485] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4486] <... futex resumed>) = 1 [pid 4486] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4486] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4485] <... futex resumed>) = 0 [pid 4485] exit_group(0) = ? [pid 4486] <... futex resumed>) = ? [pid 4486] +++ exited with 0 +++ [pid 4485] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4485, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18051", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18051", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18051/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18051/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18051/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18051") = 0 mkdir("./18052", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4487 ./strace-static-x86_64: Process 4487 attached [pid 4487] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4487] chdir("./18052") = 0 [pid 4487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4487] setpgid(0, 0) = 0 [pid 4487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4487] write(3, "1000", 4) = 4 [pid 4487] close(3) = 0 [pid 4487] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4487] write(1, "executing program\n", 18) = 18 [pid 4487] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4487] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4487] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4487] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4487] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4488 attached [pid 4488] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4487] <... clone3 resumed> => {parent_tid=[4488]}, 88) = 4488 [pid 4488] <... set_robust_list resumed>) = 0 [pid 4487] rt_sigprocmask(SIG_SETMASK, [], [pid 4488] rt_sigprocmask(SIG_SETMASK, [], [pid 4487] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4488] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4487] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4488] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4487] <... futex resumed>) = 0 [pid 4488] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4487] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4488] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4487] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4488] <... futex resumed>) = 0 [pid 4487] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4488] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4487] <... futex resumed>) = 0 [pid 4487] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4488] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4488] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4487] <... futex resumed>) = 0 [pid 4487] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4488] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4488] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4487] <... futex resumed>) = 0 [pid 4487] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4488] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4488] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4487] <... futex resumed>) = 0 [pid 4487] exit_group(0) = ? [pid 4488] +++ exited with 0 +++ [pid 4487] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18052", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18052", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18052/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18052/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18052/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18052") = 0 mkdir("./18053", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4489 ./strace-static-x86_64: Process 4489 attached [pid 4489] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4489] chdir("./18053") = 0 [pid 4489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4489] setpgid(0, 0) = 0 [pid 4489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4489] write(3, "1000", 4) = 4 [pid 4489] close(3) = 0 [pid 4489] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4489] write(1, "executing program\n", 18executing program ) = 18 [pid 4489] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4489] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4489] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4489] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4489] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4489] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4489] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4490 attached => {parent_tid=[4490]}, 88) = 4490 [pid 4490] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4490] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4489] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4489] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4490] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4490] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4489] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4489] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4490] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4490] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4489] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4489] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4490] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4490] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4489] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4489] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4490] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4490] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4489] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4489] exit_group(0) = ? [pid 4490] <... futex resumed>) = ? [pid 4490] +++ exited with 0 +++ [pid 4489] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4489, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18053", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18053", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18053/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18053/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18053/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18053") = 0 mkdir("./18054", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4491 ./strace-static-x86_64: Process 4491 attached [pid 4491] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4491] chdir("./18054") = 0 [pid 4491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4491] setpgid(0, 0) = 0 [pid 4491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4491] write(3, "1000", 4) = 4 [pid 4491] close(3) = 0 [pid 4491] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4491] write(1, "executing program\n", 18executing program ) = 18 [pid 4491] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4491] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4491] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4491] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4491] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4491] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4491] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4492 attached => {parent_tid=[4492]}, 88) = 4492 [pid 4492] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4491] rt_sigprocmask(SIG_SETMASK, [], [pid 4492] <... set_robust_list resumed>) = 0 [pid 4491] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4492] rt_sigprocmask(SIG_SETMASK, [], [pid 4491] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4492] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4491] <... futex resumed>) = 0 [pid 4492] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4491] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4492] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4492] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4491] <... futex resumed>) = 0 [pid 4491] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4491] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4492] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4492] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4491] <... futex resumed>) = 0 [pid 4491] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4492] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4491] <... futex resumed>) = 0 [pid 4491] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4492] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4492] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4491] <... futex resumed>) = 0 [pid 4491] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4491] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4492] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4492] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4491] <... futex resumed>) = 0 [pid 4491] exit_group(0) = ? [pid 4492] +++ exited with 0 +++ [pid 4491] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18054", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18054", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18054/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18054/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18054/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18054") = 0 mkdir("./18055", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4493 attached , child_tidptr=0x55558931b690) = 4493 [pid 4493] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4493] chdir("./18055") = 0 [pid 4493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4493] setpgid(0, 0) = 0 [pid 4493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4493] write(3, "1000", 4) = 4 [pid 4493] close(3) = 0 [pid 4493] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4493] write(1, "executing program\n", 18executing program ) = 18 [pid 4493] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4493] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4493] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4493] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4493] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4494 attached [pid 4494] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4494] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4494] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4493] <... clone3 resumed> => {parent_tid=[4494]}, 88) = 4494 [pid 4493] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4493] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4494] <... futex resumed>) = 0 [pid 4494] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4494] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4494] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4493] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4493] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4494] <... futex resumed>) = 0 [pid 4494] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4493] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4494] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4493] <... futex resumed>) = 0 [pid 4493] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4494] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4494] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4493] <... futex resumed>) = 0 [pid 4493] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4494] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4494] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4493] <... futex resumed>) = 0 [pid 4494] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4493] exit_group(0) = ? [pid 4494] <... futex resumed>) = ? [pid 4494] +++ exited with 0 +++ [pid 4493] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18055", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18055", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18055/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18055/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18055/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18055") = 0 mkdir("./18056", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4495 attached , child_tidptr=0x55558931b690) = 4495 [pid 4495] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4495] chdir("./18056") = 0 [pid 4495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4495] setpgid(0, 0) = 0 [pid 4495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4495] write(3, "1000", 4) = 4 [pid 4495] close(3) = 0 [pid 4495] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4495] write(1, "executing program\n", 18) = 18 [pid 4495] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4495] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4495] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4495] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4495] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4495] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4496 attached [pid 4496] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4496] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4496] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4495] <... clone3 resumed> => {parent_tid=[4496]}, 88) = 4496 [pid 4495] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4495] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4496] <... futex resumed>) = 0 [pid 4496] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4495] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4496] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4496] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4495] <... futex resumed>) = 0 [pid 4495] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4496] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4495] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4496] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4496] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4495] <... futex resumed>) = 0 [pid 4495] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4495] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4496] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4496] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4495] <... futex resumed>) = 0 [pid 4495] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4495] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4496] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4496] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4495] <... futex resumed>) = 0 [pid 4495] exit_group(0) = ? [pid 4496] +++ exited with 0 +++ [pid 4495] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18056", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18056", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18056/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18056/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18056/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18056") = 0 mkdir("./18057", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4497 ./strace-static-x86_64: Process 4497 attached [pid 4497] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4497] chdir("./18057") = 0 [pid 4497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4497] setpgid(0, 0) = 0 [pid 4497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4497] write(3, "1000", 4) = 4 [pid 4497] close(3) = 0 [pid 4497] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4497] write(1, "executing program\n", 18) = 18 [pid 4497] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4497] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4497] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4497] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4497] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4497] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4497] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4498 attached => {parent_tid=[4498]}, 88) = 4498 [pid 4498] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4498] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4498] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4497] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4497] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4498] <... futex resumed>) = 0 [pid 4498] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4498] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4498] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4497] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4497] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4498] <... futex resumed>) = 0 [pid 4498] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4498] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4498] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4497] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4497] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4498] <... futex resumed>) = 0 [pid 4498] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4498] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4498] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4497] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4497] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4498] <... futex resumed>) = 0 [pid 4497] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4498] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4498] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4498] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4497] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4497] exit_group(0) = ? [pid 4498] <... futex resumed>) = ? [pid 4498] +++ exited with 0 +++ [pid 4497] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4497, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18057", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18057", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18057/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18057/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18057/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18057") = 0 mkdir("./18058", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4499 attached , child_tidptr=0x55558931b690) = 4499 [pid 4499] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4499] chdir("./18058") = 0 [pid 4499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4499] setpgid(0, 0) = 0 [pid 4499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4499] write(3, "1000", 4) = 4 [pid 4499] close(3) = 0 [pid 4499] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4499] write(1, "executing program\n", 18) = 18 [pid 4499] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4499] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4499] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4499] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4499] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4500 attached => {parent_tid=[4500]}, 88) = 4500 [pid 4500] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4499] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4500] <... set_robust_list resumed>) = 0 [pid 4500] rt_sigprocmask(SIG_SETMASK, [], [pid 4499] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4500] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4499] <... futex resumed>) = 0 [pid 4500] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4499] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4500] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4500] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4499] <... futex resumed>) = 0 [pid 4499] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4500] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4500] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4499] <... futex resumed>) = 0 [pid 4500] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4499] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4499] <... futex resumed>) = 0 [pid 4500] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4499] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4500] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4500] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4500] <... futex resumed>) = 0 [pid 4499] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4500] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4499] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4500] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4500] <... futex resumed>) = 0 [pid 4499] exit_group(0 [pid 4500] ????( [pid 4499] <... exit_group resumed>) = ? [pid 4500] <... ???? resumed>) = 0xe7 [pid 4500] +++ exited with 0 +++ [pid 4499] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18058", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18058", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18058/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18058/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18058/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18058") = 0 mkdir("./18059", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4501 attached , child_tidptr=0x55558931b690) = 4501 [pid 4501] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4501] chdir("./18059") = 0 [pid 4501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4501] setpgid(0, 0) = 0 [pid 4501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4501] write(3, "1000", 4) = 4 [pid 4501] close(3) = 0 [pid 4501] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4501] write(1, "executing program\n", 18) = 18 [pid 4501] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4501] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4501] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4501] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4501] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4501] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4501] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4502 attached => {parent_tid=[4502]}, 88) = 4502 [pid 4502] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4501] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4502] <... set_robust_list resumed>) = 0 [pid 4501] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4502] rt_sigprocmask(SIG_SETMASK, [], [pid 4501] <... futex resumed>) = 0 [pid 4502] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4501] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4502] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4502] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4501] <... futex resumed>) = 0 [pid 4501] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4501] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4502] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4502] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4501] <... futex resumed>) = 0 [pid 4501] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4501] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4502] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4502] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4501] <... futex resumed>) = 0 [pid 4501] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4501] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4502] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4502] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4501] <... futex resumed>) = 0 [pid 4501] exit_group(0) = ? [pid 4502] +++ exited with 0 +++ [pid 4501] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18059", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18059", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18059/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18059/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18059/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18059") = 0 mkdir("./18060", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4503 ./strace-static-x86_64: Process 4503 attached [pid 4503] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4503] chdir("./18060") = 0 [pid 4503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4503] setpgid(0, 0) = 0 [pid 4503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4503] write(3, "1000", 4) = 4 [pid 4503] close(3) = 0 [pid 4503] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4503] write(1, "executing program\n", 18executing program ) = 18 [pid 4503] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4503] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4503] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4503] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4503] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4503] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4503] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4504 attached => {parent_tid=[4504]}, 88) = 4504 [pid 4504] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4504] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4504] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4503] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4504] <... futex resumed>) = 0 [pid 4504] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4504] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4504] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4503] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4503] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4504] <... futex resumed>) = 0 [pid 4504] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4504] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4504] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4503] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4503] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4504] <... futex resumed>) = 0 [pid 4504] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4504] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4504] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4503] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4503] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4504] <... futex resumed>) = 0 [pid 4503] <... futex resumed>) = 1 [pid 4504] write(-1, "0x0000000000000001", 18 [pid 4503] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4504] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4504] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4503] <... futex resumed>) = 0 [pid 4503] exit_group(0) = ? [pid 4504] +++ exited with 0 +++ [pid 4503] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18060", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18060", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18060/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18060/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18060/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18060") = 0 mkdir("./18061", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4505 attached [pid 4505] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4505] chdir("./18061" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 4505 [pid 4505] <... chdir resumed>) = 0 [pid 4505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4505] setpgid(0, 0) = 0 [pid 4505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4505] write(3, "1000", 4) = 4 [pid 4505] close(3) = 0 [pid 4505] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4505] write(1, "executing program\n", 18) = 18 [pid 4505] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4505] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4505] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4505] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4505] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4506]}, 88) = 4506 [pid 4505] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4505] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4506 attached [pid 4506] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4506] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4506] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4505] <... futex resumed>) = 0 [pid 4505] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4506] <... futex resumed>) = 1 [pid 4506] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4506] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4505] <... futex resumed>) = 0 [pid 4505] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4506] <... futex resumed>) = 1 [pid 4506] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4506] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4505] <... futex resumed>) = 0 [pid 4505] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4506] <... futex resumed>) = 1 [pid 4506] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4506] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4505] <... futex resumed>) = 0 [pid 4505] exit_group(0) = ? [pid 4506] <... futex resumed>) = ? [pid 4506] +++ exited with 0 +++ [pid 4505] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18061", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18061", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18061/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18061/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18061/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18061") = 0 mkdir("./18062", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4507 attached , child_tidptr=0x55558931b690) = 4507 [pid 4507] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4507] chdir("./18062") = 0 [pid 4507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4507] setpgid(0, 0) = 0 [pid 4507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4507] write(3, "1000", 4) = 4 [pid 4507] close(3) = 0 [pid 4507] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4507] write(1, "executing program\n", 18) = 18 [pid 4507] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4507] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4507] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4507] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4507] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4507] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4508]}, 88) = 4508 [pid 4507] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4507] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4507] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4508 attached [pid 4508] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4508] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4508] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4508] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4507] <... futex resumed>) = 0 [pid 4508] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4507] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4508] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4507] <... futex resumed>) = 0 [pid 4508] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4507] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4508] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4508] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4507] <... futex resumed>) = 0 [pid 4508] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4507] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4508] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4507] <... futex resumed>) = 0 [pid 4508] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4507] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4508] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4508] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4507] <... futex resumed>) = 0 [pid 4508] <... futex resumed>) = 1 [pid 4507] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] write(-1, "0x0000000000000001", 18 [pid 4507] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4508] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4508] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4507] <... futex resumed>) = 0 [pid 4508] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4507] exit_group(0) = ? [pid 4508] <... futex resumed>) = ? [pid 4508] +++ exited with 0 +++ [pid 4507] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4507, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18062", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18062", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18062/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18062/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18062/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18062") = 0 mkdir("./18063", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4509 ./strace-static-x86_64: Process 4509 attached [pid 4509] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4509] chdir("./18063") = 0 [pid 4509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4509] setpgid(0, 0) = 0 [pid 4509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4509] write(3, "1000", 4) = 4 [pid 4509] close(3) = 0 [pid 4509] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4509] write(1, "executing program\n", 18) = 18 [pid 4509] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4509] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4509] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4509] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4509] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4509] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4509] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4510]}, 88) = 4510 ./strace-static-x86_64: Process 4510 attached [pid 4510] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4510] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4510] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4509] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4509] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4510] <... futex resumed>) = 0 [pid 4510] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4509] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4510] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4510] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4509] <... futex resumed>) = 0 [pid 4509] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4510] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4509] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4510] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4510] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4509] <... futex resumed>) = 0 [pid 4509] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4509] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4510] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4510] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4509] <... futex resumed>) = 0 [pid 4509] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4509] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4510] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4510] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4509] <... futex resumed>) = 0 [pid 4509] exit_group(0) = ? [pid 4510] +++ exited with 0 +++ [pid 4509] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4509, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18063", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18063", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18063/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18063/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18063/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18063") = 0 mkdir("./18064", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4511 ./strace-static-x86_64: Process 4511 attached [pid 4511] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4511] chdir("./18064") = 0 [pid 4511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4511] setpgid(0, 0) = 0 [pid 4511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4511] write(3, "1000", 4) = 4 [pid 4511] close(3) = 0 executing program [pid 4511] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4511] write(1, "executing program\n", 18) = 18 [pid 4511] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4511] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4511] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4511] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4511] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4512 attached [pid 4512] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4511] <... clone3 resumed> => {parent_tid=[4512]}, 88) = 4512 [pid 4511] rt_sigprocmask(SIG_SETMASK, [], [pid 4512] <... set_robust_list resumed>) = 0 [pid 4511] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4512] rt_sigprocmask(SIG_SETMASK, [], [pid 4511] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4512] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4511] <... futex resumed>) = 0 [pid 4512] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4511] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4512] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4512] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4511] <... futex resumed>) = 0 [pid 4511] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4512] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4512] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4511] <... futex resumed>) = 0 [pid 4511] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4512] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4512] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4511] <... futex resumed>) = 0 [pid 4511] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4512] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4512] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4511] <... futex resumed>) = 0 [pid 4511] exit_group(0) = ? [pid 4512] +++ exited with 0 +++ [pid 4511] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4511, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18064", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18064", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18064/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18064/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18064/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18064") = 0 mkdir("./18065", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4513 attached , child_tidptr=0x55558931b690) = 4513 [pid 4513] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4513] chdir("./18065") = 0 [pid 4513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4513] setpgid(0, 0) = 0 [pid 4513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4513] write(3, "1000", 4) = 4 [pid 4513] close(3) = 0 [pid 4513] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4513] write(1, "executing program\n", 18executing program ) = 18 [pid 4513] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4513] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4513] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4513] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4513] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4513] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4514 attached => {parent_tid=[4514]}, 88) = 4514 [pid 4514] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4514] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4514] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4513] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4513] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4514] <... futex resumed>) = 0 [pid 4513] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4514] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4514] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4514] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4513] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4514] <... futex resumed>) = 0 [pid 4514] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4514] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4513] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4514] <... futex resumed>) = 0 [pid 4513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4514] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4513] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4514] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4513] <... futex resumed>) = 0 [pid 4514] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4513] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4514] <... futex resumed>) = 0 [pid 4513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4513] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4514] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4513] <... futex resumed>) = 0 [pid 4514] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4513] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4514] <... futex resumed>) = 0 [pid 4513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4514] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4513] exit_group(0) = ? [pid 4514] <... futex resumed>) = ? [pid 4514] +++ exited with 0 +++ [pid 4513] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18065", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18065", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18065/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18065/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18065/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18065") = 0 mkdir("./18066", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4515 ./strace-static-x86_64: Process 4515 attached [pid 4515] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4515] chdir("./18066") = 0 [pid 4515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4515] setpgid(0, 0) = 0 [pid 4515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4515] write(3, "1000", 4) = 4 [pid 4515] close(3) = 0 [pid 4515] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4515] write(1, "executing program\n", 18executing program ) = 18 [pid 4515] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4515] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4515] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4515] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4515] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4515] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4515] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4516]}, 88) = 4516 [pid 4515] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4515] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4515] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4516 attached [pid 4516] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4516] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4516] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4516] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... futex resumed>) = 0 [pid 4515] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4515] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4516] <... futex resumed>) = 1 [pid 4516] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4516] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... futex resumed>) = 0 [pid 4515] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4515] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4516] <... futex resumed>) = 1 [pid 4516] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4516] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... futex resumed>) = 0 [pid 4515] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4515] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4516] <... futex resumed>) = 1 [pid 4516] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4516] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... futex resumed>) = 0 [pid 4515] exit_group(0) = ? [pid 4516] <... futex resumed>) = ? [pid 4516] +++ exited with 0 +++ [pid 4515] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18066", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18066", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18066/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18066/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18066/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18066") = 0 mkdir("./18067", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4517 ./strace-static-x86_64: Process 4517 attached [pid 4517] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4517] chdir("./18067") = 0 [pid 4517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4517] setpgid(0, 0) = 0 [pid 4517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4517] write(3, "1000", 4) = 4 [pid 4517] close(3) = 0 [pid 4517] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4517] write(1, "executing program\n", 18) = 18 [pid 4517] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4517] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4517] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4517] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4517] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4517] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4518 attached => {parent_tid=[4518]}, 88) = 4518 [pid 4518] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4518] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4518] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4517] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4517] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4518] <... futex resumed>) = 0 [pid 4518] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4518] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4518] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4517] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4517] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4518] <... futex resumed>) = 0 [pid 4518] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4518] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4518] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4517] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4517] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4518] <... futex resumed>) = 0 [pid 4518] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4518] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4518] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4517] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4517] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4518] <... futex resumed>) = 0 [pid 4518] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4518] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4518] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4517] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4517] exit_group(0) = ? [pid 4518] <... futex resumed>) = ? [pid 4518] +++ exited with 0 +++ [pid 4517] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18067", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18067", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18067/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18067/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18067/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18067") = 0 mkdir("./18068", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4519 ./strace-static-x86_64: Process 4519 attached [pid 4519] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4519] chdir("./18068") = 0 [pid 4519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4519] setpgid(0, 0) = 0 [pid 4519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4519] write(3, "1000", 4) = 4 [pid 4519] close(3) = 0 [pid 4519] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4519] write(1, "executing program\n", 18executing program ) = 18 [pid 4519] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4519] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4519] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4519] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4519] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4519] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4519] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4520 attached => {parent_tid=[4520]}, 88) = 4520 [pid 4520] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4520] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4520] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4519] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4519] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4520] <... futex resumed>) = 0 [pid 4520] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4520] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4519] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4519] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4520] <... futex resumed>) = 0 [pid 4520] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4520] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4519] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4519] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4520] <... futex resumed>) = 0 [pid 4520] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4520] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4519] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4519] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4520] <... futex resumed>) = 0 [pid 4520] write(-1, "0x0000000000000001", 18 [pid 4519] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4520] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4520] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4519] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4519] exit_group(0) = ? [pid 4520] <... futex resumed>) = ? [pid 4520] +++ exited with 0 +++ [pid 4519] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4519, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18068", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18068", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18068/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18068/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18068/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18068") = 0 mkdir("./18069", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4522 ./strace-static-x86_64: Process 4522 attached [pid 4522] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4522] chdir("./18069") = 0 [pid 4522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4522] setpgid(0, 0) = 0 [pid 4522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4522] write(3, "1000", 4) = 4 [pid 4522] close(3) = 0 [pid 4522] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4522] write(1, "executing program\n", 18) = 18 [pid 4522] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4522] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4522] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4522] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4522] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4522] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4523]}, 88) = 4523 [pid 4522] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4522] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4522] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4523 attached [pid 4523] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4523] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4523] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4523] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4522] <... futex resumed>) = 0 [pid 4522] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4522] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4523] <... futex resumed>) = 1 [pid 4523] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4523] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4522] <... futex resumed>) = 0 [pid 4522] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4522] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4523] <... futex resumed>) = 1 [pid 4523] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4523] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4522] <... futex resumed>) = 0 [pid 4522] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4522] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4523] <... futex resumed>) = 1 [pid 4523] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4523] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4522] <... futex resumed>) = 0 [pid 4522] exit_group(0) = ? [pid 4523] <... futex resumed>) = ? [pid 4523] +++ exited with 0 +++ [pid 4522] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18069", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18069", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18069/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18069/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18069/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18069") = 0 mkdir("./18070", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4524 ./strace-static-x86_64: Process 4524 attached [pid 4524] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4524] chdir("./18070") = 0 [pid 4524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4524] setpgid(0, 0) = 0 [pid 4524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4524] write(3, "1000", 4) = 4 [pid 4524] close(3) = 0 [pid 4524] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4524] write(1, "executing program\n", 18executing program ) = 18 [pid 4524] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4524] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4524] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4524] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4524] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4524] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4524] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4525]}, 88) = 4525 [pid 4524] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4524] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4524] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4525 attached [pid 4525] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4525] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4525] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4525] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4524] <... futex resumed>) = 0 [pid 4524] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4524] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4525] <... futex resumed>) = 1 [pid 4525] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4525] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4524] <... futex resumed>) = 0 [pid 4524] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4524] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4525] <... futex resumed>) = 1 [pid 4525] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4525] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4524] <... futex resumed>) = 0 [pid 4524] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4524] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4525] <... futex resumed>) = 1 [pid 4525] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4525] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4524] <... futex resumed>) = 0 [pid 4524] exit_group(0 [pid 4525] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4524] <... exit_group resumed>) = ? [pid 4525] <... futex resumed>) = ? [pid 4525] +++ exited with 0 +++ [pid 4524] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18070", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18070", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18070/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18070/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18070/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18070") = 0 mkdir("./18071", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4526 ./strace-static-x86_64: Process 4526 attached [pid 4526] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4526] chdir("./18071") = 0 [pid 4526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4526] setpgid(0, 0) = 0 [pid 4526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4526] write(3, "1000", 4) = 4 [pid 4526] close(3) = 0 [pid 4526] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4526] write(1, "executing program\n", 18) = 18 [pid 4526] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4526] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4526] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4526] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4526] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4526] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4527]}, 88) = 4527 [pid 4526] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4526] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4526] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4527 attached [pid 4527] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4527] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4527] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4527] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4526] <... futex resumed>) = 0 [pid 4527] <... futex resumed>) = 1 [pid 4526] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4527] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4526] <... futex resumed>) = 0 [pid 4526] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4527] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4527] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4526] <... futex resumed>) = 0 [pid 4527] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4526] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4527] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4526] <... futex resumed>) = 0 [pid 4527] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4526] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4527] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4527] <... futex resumed>) = 0 [pid 4526] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4527] write(-1, "0x0000000000000001", 18 [pid 4526] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4527] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4527] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4526] <... futex resumed>) = 0 [pid 4526] exit_group(0) = ? [pid 4527] +++ exited with 0 +++ [pid 4526] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18071", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18071", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18071/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18071/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18071/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18071") = 0 mkdir("./18072", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4528 attached , child_tidptr=0x55558931b690) = 4528 [pid 4528] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4528] chdir("./18072") = 0 [pid 4528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4528] setpgid(0, 0) = 0 [pid 4528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4528] write(3, "1000", 4) = 4 [pid 4528] close(3) = 0 [pid 4528] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4528] write(1, "executing program\n", 18executing program ) = 18 [pid 4528] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4528] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4528] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4528] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4528] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4528] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4528] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4529]}, 88) = 4529 [pid 4528] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4528] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4528] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4529 attached [pid 4529] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4529] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4529] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4529] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4528] <... futex resumed>) = 0 [pid 4528] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4528] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4529] <... futex resumed>) = 1 [pid 4529] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4529] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4528] <... futex resumed>) = 0 [pid 4528] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4529] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4528] <... futex resumed>) = 0 [pid 4528] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4529] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4529] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4528] <... futex resumed>) = 0 [pid 4528] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4528] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4529] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4529] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4528] <... futex resumed>) = 0 [pid 4528] exit_group(0 [pid 4529] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4528] <... exit_group resumed>) = ? [pid 4529] <... futex resumed>) = ? [pid 4529] +++ exited with 0 +++ [pid 4528] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18072", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18072", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18072/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18072/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18072/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18072") = 0 mkdir("./18073", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4530 attached , child_tidptr=0x55558931b690) = 4530 [pid 4530] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4530] chdir("./18073") = 0 [pid 4530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4530] setpgid(0, 0) = 0 [pid 4530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4530] write(3, "1000", 4) = 4 [pid 4530] close(3) = 0 [pid 4530] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4530] write(1, "executing program\n", 18executing program ) = 18 [pid 4530] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4530] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4530] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4530] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4530] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4530] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4531 attached => {parent_tid=[4531]}, 88) = 4531 [pid 4531] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4531] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4531] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4530] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4530] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4531] <... futex resumed>) = 0 [pid 4531] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4531] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4531] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4530] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4530] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4531] <... futex resumed>) = 0 [pid 4531] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4531] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4531] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4530] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4530] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4531] <... futex resumed>) = 0 [pid 4531] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4531] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4531] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4530] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4530] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4531] <... futex resumed>) = 0 [pid 4530] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4531] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4531] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4530] <... futex resumed>) = 0 [pid 4531] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4530] exit_group(0) = ? [pid 4531] <... futex resumed>) = ? [pid 4531] +++ exited with 0 +++ [pid 4530] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18073", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18073", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18073/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18073/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18073/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18073") = 0 mkdir("./18074", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4532 ./strace-static-x86_64: Process 4532 attached [pid 4532] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4532] chdir("./18074") = 0 [pid 4532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4532] setpgid(0, 0) = 0 [pid 4532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4532] write(3, "1000", 4) = 4 [pid 4532] close(3) = 0 [pid 4532] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4532] write(1, "executing program\n", 18executing program ) = 18 [pid 4532] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4532] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4532] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4532] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4532] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4533]}, 88) = 4533 [pid 4532] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4532] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4533 attached [pid 4533] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4533] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4533] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4533] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4533] <... futex resumed>) = 1 [pid 4533] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4533] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4533] <... futex resumed>) = 1 [pid 4533] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4533] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4533] <... futex resumed>) = 1 [pid 4533] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4533] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4532] exit_group(0) = ? [pid 4533] <... futex resumed>) = ? [pid 4533] +++ exited with 0 +++ [pid 4532] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18074", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18074", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18074/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18074/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18074/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18074") = 0 mkdir("./18075", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4534 ./strace-static-x86_64: Process 4534 attached [pid 4534] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4534] chdir("./18075") = 0 [pid 4534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4534] setpgid(0, 0) = 0 [pid 4534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4534] write(3, "1000", 4) = 4 [pid 4534] close(3) = 0 [pid 4534] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4534] write(1, "executing program\n", 18) = 18 [pid 4534] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4534] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4534] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4534] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4534] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4534] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4534] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4535 attached => {parent_tid=[4535]}, 88) = 4535 [pid 4534] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4534] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4534] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4535] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4535] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4535] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4535] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4534] <... futex resumed>) = 0 [pid 4534] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4534] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4535] <... futex resumed>) = 1 [pid 4535] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4535] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4534] <... futex resumed>) = 0 [pid 4534] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4534] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4535] <... futex resumed>) = 1 [pid 4535] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4535] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4534] <... futex resumed>) = 0 [pid 4534] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4534] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4535] <... futex resumed>) = 1 [pid 4535] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4535] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4534] <... futex resumed>) = 0 [pid 4534] exit_group(0) = ? [pid 4535] +++ exited with 0 +++ [pid 4534] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18075", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18075", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18075/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18075/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18075/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18075") = 0 mkdir("./18076", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4536 ./strace-static-x86_64: Process 4536 attached [pid 4536] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4536] chdir("./18076") = 0 [pid 4536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4536] setpgid(0, 0) = 0 [pid 4536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4536] write(3, "1000", 4) = 4 [pid 4536] close(3) = 0 [pid 4536] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4536] write(1, "executing program\n", 18executing program ) = 18 [pid 4536] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4536] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4536] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4536] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4536] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4536] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4537 attached [pid 4537] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4537] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4537] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4536] <... clone3 resumed> => {parent_tid=[4537]}, 88) = 4537 [pid 4536] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4536] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4537] <... futex resumed>) = 0 [pid 4537] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4537] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4537] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4536] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4536] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4537] <... futex resumed>) = 0 [pid 4537] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4537] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4537] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4536] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4536] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4537] <... futex resumed>) = 0 [pid 4537] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4537] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4537] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4536] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4536] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4537] <... futex resumed>) = 0 [pid 4537] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4537] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4537] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4536] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4536] exit_group(0) = ? [pid 4537] <... futex resumed>) = ? [pid 4537] +++ exited with 0 +++ [pid 4536] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4536, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18076", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18076", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18076/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18076/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18076/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18076") = 0 mkdir("./18077", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4538 ./strace-static-x86_64: Process 4538 attached [pid 4538] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4538] chdir("./18077") = 0 [pid 4538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4538] setpgid(0, 0) = 0 [pid 4538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4538] write(3, "1000", 4) = 4 [pid 4538] close(3) = 0 [pid 4538] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4538] write(1, "executing program\n", 18) = 18 [pid 4538] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4538] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4538] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4538] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4538] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4539]}, 88) = 4539 [pid 4538] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4538] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4539 attached [pid 4539] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4539] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4539] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4539] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4538] <... futex resumed>) = 0 [pid 4538] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4539] <... futex resumed>) = 1 [pid 4539] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4539] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4538] <... futex resumed>) = 0 [pid 4538] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4539] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4539] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4538] <... futex resumed>) = 0 [pid 4538] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4539] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4539] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4538] <... futex resumed>) = 0 [pid 4538] exit_group(0 [pid 4539] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4538] <... exit_group resumed>) = ? [pid 4539] <... futex resumed>) = ? [pid 4539] +++ exited with 0 +++ [pid 4538] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18077", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18077", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18077/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18077/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18077/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18077") = 0 mkdir("./18078", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4540 ./strace-static-x86_64: Process 4540 attached [pid 4540] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4540] chdir("./18078") = 0 [pid 4540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4540] setpgid(0, 0) = 0 [pid 4540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4540] write(3, "1000", 4) = 4 [pid 4540] close(3) = 0 [pid 4540] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4540] write(1, "executing program\n", 18) = 18 [pid 4540] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4540] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4540] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4540] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4540] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4540] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4541]}, 88) = 4541 [pid 4540] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4540] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4540] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4541 attached [pid 4541] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4541] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4541] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4541] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4540] <... futex resumed>) = 0 [pid 4540] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4540] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4541] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4541] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4540] <... futex resumed>) = 0 [pid 4540] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4540] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4541] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4541] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4540] <... futex resumed>) = 0 [pid 4540] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4540] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4541] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4541] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4540] <... futex resumed>) = 0 [pid 4540] exit_group(0) = ? [pid 4541] +++ exited with 0 +++ [pid 4540] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18078", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18078", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18078/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18078/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18078/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18078") = 0 mkdir("./18079", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4542 ./strace-static-x86_64: Process 4542 attached [pid 4542] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4542] chdir("./18079") = 0 [pid 4542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4542] setpgid(0, 0) = 0 [pid 4542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4542] write(3, "1000", 4) = 4 [pid 4542] close(3) = 0 [pid 4542] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4542] write(1, "executing program\n", 18executing program ) = 18 [pid 4542] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4542] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4542] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4542] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4542] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4542] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4543 attached => {parent_tid=[4543]}, 88) = 4543 [pid 4543] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4542] rt_sigprocmask(SIG_SETMASK, [], [pid 4543] <... set_robust_list resumed>) = 0 [pid 4543] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4543] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4542] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4542] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4543] <... futex resumed>) = 0 [pid 4543] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4543] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4543] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4542] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4542] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4543] <... futex resumed>) = 0 [pid 4543] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4542] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4543] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4543] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4542] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4543] <... futex resumed>) = 0 [pid 4543] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4543] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4543] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4542] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4542] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4543] <... futex resumed>) = 0 [pid 4543] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4543] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4543] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4542] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4542] exit_group(0) = ? [pid 4543] <... futex resumed>) = ? [pid 4543] +++ exited with 0 +++ [pid 4542] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18079", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18079", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18079/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18079/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18079/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18079") = 0 mkdir("./18080", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4544 ./strace-static-x86_64: Process 4544 attached [pid 4544] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4544] chdir("./18080") = 0 [pid 4544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4544] setpgid(0, 0) = 0 [pid 4544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4544] write(3, "1000", 4) = 4 [pid 4544] close(3) = 0 [pid 4544] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4544] write(1, "executing program\n", 18) = 18 [pid 4544] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4544] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4544] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4544] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4544] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4545 attached => {parent_tid=[4545]}, 88) = 4545 [pid 4544] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4544] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4545] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4545] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4545] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4545] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4544] <... futex resumed>) = 0 [pid 4544] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4545] <... futex resumed>) = 1 [pid 4545] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4545] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4544] <... futex resumed>) = 0 [pid 4544] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4545] <... futex resumed>) = 1 [pid 4545] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4545] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4544] <... futex resumed>) = 0 [pid 4544] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4545] <... futex resumed>) = 1 [pid 4545] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4545] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4544] <... futex resumed>) = 0 [pid 4544] exit_group(0) = ? [pid 4545] <... futex resumed>) = ? [pid 4545] +++ exited with 0 +++ [pid 4544] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18080", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18080", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18080/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18080/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18080/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18080") = 0 mkdir("./18081", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4546 ./strace-static-x86_64: Process 4546 attached [pid 4546] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4546] chdir("./18081") = 0 [pid 4546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4546] setpgid(0, 0) = 0 [pid 4546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4546] write(3, "1000", 4) = 4 [pid 4546] close(3) = 0 [pid 4546] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4546] write(1, "executing program\n", 18executing program ) = 18 [pid 4546] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4546] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4546] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4546] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4546] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4546] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4546] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4547 attached [pid 4547] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4547] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4547] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4546] <... clone3 resumed> => {parent_tid=[4547]}, 88) = 4547 [pid 4546] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4546] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4547] <... futex resumed>) = 0 [pid 4547] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4547] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4546] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4546] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4547] <... futex resumed>) = 0 [pid 4547] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4547] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4546] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4546] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4547] <... futex resumed>) = 0 [pid 4547] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4547] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4546] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4546] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4547] <... futex resumed>) = 0 [pid 4547] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4547] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4546] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4546] exit_group(0) = ? [pid 4547] <... futex resumed>) = ? [pid 4547] +++ exited with 0 +++ [pid 4546] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18081", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18081", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18081/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18081/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18081/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18081") = 0 mkdir("./18082", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4548 attached , child_tidptr=0x55558931b690) = 4548 [pid 4548] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4548] chdir("./18082") = 0 [pid 4548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4548] setpgid(0, 0) = 0 [pid 4548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4548] write(3, "1000", 4) = 4 [pid 4548] close(3) = 0 [pid 4548] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4548] write(1, "executing program\n", 18executing program ) = 18 [pid 4548] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4548] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4548] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4548] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4548] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4548] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4549 attached => {parent_tid=[4549]}, 88) = 4549 [pid 4549] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4549] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4549] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4548] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4548] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4549] <... futex resumed>) = 0 [pid 4549] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4549] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4549] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4548] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4548] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4549] <... futex resumed>) = 0 [pid 4549] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4549] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4549] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4548] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4548] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4549] <... futex resumed>) = 0 [pid 4549] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4549] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4549] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4548] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4548] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4549] <... futex resumed>) = 0 [pid 4549] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4549] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4549] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4548] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4548] exit_group(0) = ? [pid 4549] <... futex resumed>) = ? [pid 4549] +++ exited with 0 +++ [pid 4548] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18082", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18082", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18082/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18082/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18082/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18082") = 0 mkdir("./18083", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4550 ./strace-static-x86_64: Process 4550 attached [pid 4550] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4550] chdir("./18083") = 0 [pid 4550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4550] setpgid(0, 0) = 0 [pid 4550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4550] write(3, "1000", 4) = 4 [pid 4550] close(3) = 0 [pid 4550] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4550] write(1, "executing program\n", 18executing program ) = 18 [pid 4550] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4550] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4550] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4550] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4550] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4551 attached => {parent_tid=[4551]}, 88) = 4551 [pid 4550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4550] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4551] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4551] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4551] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4551] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4550] <... futex resumed>) = 0 [pid 4550] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4551] <... futex resumed>) = 1 [pid 4551] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4551] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4550] <... futex resumed>) = 0 [pid 4550] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4551] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4551] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4550] <... futex resumed>) = 0 [pid 4550] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4551] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4551] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4550] <... futex resumed>) = 0 [pid 4550] exit_group(0) = ? [pid 4551] <... futex resumed>) = ? [pid 4551] +++ exited with 0 +++ [pid 4550] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18083", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18083", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18083/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18083/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18083/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18083") = 0 mkdir("./18084", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4552 ./strace-static-x86_64: Process 4552 attached [pid 4552] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4552] chdir("./18084") = 0 [pid 4552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4552] setpgid(0, 0) = 0 [pid 4552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4552] write(3, "1000", 4) = 4 [pid 4552] close(3) = 0 [pid 4552] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4552] write(1, "executing program\n", 18) = 18 [pid 4552] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4552] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4552] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4552] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4552] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4552] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4552] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4553 attached => {parent_tid=[4553]}, 88) = 4553 [pid 4553] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4553] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4553] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4552] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4552] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4553] <... futex resumed>) = 0 [pid 4552] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4553] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4553] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4552] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4552] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4553] <... futex resumed>) = 0 [pid 4553] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4553] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4552] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4552] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4553] <... futex resumed>) = 0 [pid 4553] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4553] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4552] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4552] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4553] <... futex resumed>) = 0 [pid 4552] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4553] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4553] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4553] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4552] <... futex resumed>) = 0 [pid 4552] exit_group(0) = ? [pid 4553] <... futex resumed>) = ? [pid 4553] +++ exited with 0 +++ [pid 4552] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4552, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18084", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18084", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18084/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18084/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18084/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18084") = 0 mkdir("./18085", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4554 ./strace-static-x86_64: Process 4554 attached [pid 4554] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4554] chdir("./18085") = 0 [pid 4554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4554] setpgid(0, 0) = 0 [pid 4554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4554] write(3, "1000", 4) = 4 [pid 4554] close(3) = 0 [pid 4554] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4554] write(1, "executing program\n", 18) = 18 [pid 4554] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4554] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4554] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4554] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4554] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4554] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4555 attached => {parent_tid=[4555]}, 88) = 4555 [pid 4554] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4554] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4554] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4555] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4555] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4555] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4555] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4554] <... futex resumed>) = 0 [pid 4554] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4554] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4555] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4555] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4554] <... futex resumed>) = 0 [pid 4554] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4555] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4554] <... futex resumed>) = 0 [pid 4554] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4555] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4555] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4554] <... futex resumed>) = 0 [pid 4554] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4555] write(-1, "0x0000000000000001", 18 [pid 4554] <... futex resumed>) = 0 [pid 4554] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4555] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4555] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4555] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4554] <... futex resumed>) = 0 [pid 4554] exit_group(0) = ? [pid 4555] <... futex resumed>) = ? [pid 4555] +++ exited with 0 +++ [pid 4554] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4554, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18085", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18085", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18085/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18085/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18085/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18085") = 0 mkdir("./18086", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4556 ./strace-static-x86_64: Process 4556 attached [pid 4556] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4556] chdir("./18086") = 0 [pid 4556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4556] setpgid(0, 0) = 0 [pid 4556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4556] write(3, "1000", 4) = 4 [pid 4556] close(3) = 0 [pid 4556] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4556] write(1, "executing program\n", 18executing program ) = 18 [pid 4556] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4556] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4556] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4556] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4556] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4556] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4557 attached => {parent_tid=[4557]}, 88) = 4557 [pid 4557] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4557] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4557] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4556] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4556] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4557] <... futex resumed>) = 0 [pid 4557] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4557] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4557] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4556] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4556] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4557] <... futex resumed>) = 0 [pid 4557] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4557] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4557] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4556] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4556] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4557] <... futex resumed>) = 0 [pid 4556] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4557] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4557] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4557] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4556] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4557] <... futex resumed>) = 0 [pid 4557] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4557] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4557] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4556] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4556] exit_group(0) = ? [pid 4557] <... futex resumed>) = ? [pid 4557] +++ exited with 0 +++ [pid 4556] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4556, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18086", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18086", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18086/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18086/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18086/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18086") = 0 mkdir("./18087", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4558 ./strace-static-x86_64: Process 4558 attached [pid 4558] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4558] chdir("./18087") = 0 [pid 4558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4558] setpgid(0, 0) = 0 [pid 4558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4558] write(3, "1000", 4) = 4 [pid 4558] close(3) = 0 [pid 4558] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4558] write(1, "executing program\n", 18executing program ) = 18 [pid 4558] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4558] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4558] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4558] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4558] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4558] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4559 attached => {parent_tid=[4559]}, 88) = 4559 [pid 4559] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4558] rt_sigprocmask(SIG_SETMASK, [], [pid 4559] <... set_robust_list resumed>) = 0 [pid 4559] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4559] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4558] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4558] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4559] <... futex resumed>) = 0 [pid 4558] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4559] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4559] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4558] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4559] <... futex resumed>) = 0 [pid 4559] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4559] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4558] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4558] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4559] <... futex resumed>) = 0 [pid 4559] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4559] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4558] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4558] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4559] <... futex resumed>) = 0 [pid 4558] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4559] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4559] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4558] exit_group(0) = ? [pid 4559] <... futex resumed>) = ? [pid 4559] +++ exited with 0 +++ [pid 4558] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18087", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18087", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18087/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18087/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18087/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18087") = 0 mkdir("./18088", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4560 ./strace-static-x86_64: Process 4560 attached [pid 4560] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4560] chdir("./18088") = 0 [pid 4560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4560] setpgid(0, 0) = 0 [pid 4560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4560] write(3, "1000", 4) = 4 [pid 4560] close(3) = 0 [pid 4560] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4560] write(1, "executing program\n", 18executing program ) = 18 [pid 4560] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4560] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4560] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4560] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4560] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4560] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4561 attached => {parent_tid=[4561]}, 88) = 4561 [pid 4561] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4561] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4561] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4560] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4560] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4561] <... futex resumed>) = 0 [pid 4561] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4561] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4561] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4560] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4560] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4561] <... futex resumed>) = 0 [pid 4561] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4561] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4561] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4560] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4560] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4561] <... futex resumed>) = 0 [pid 4561] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4561] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4561] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4560] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4560] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4561] <... futex resumed>) = 0 [pid 4560] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4561] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4561] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4560] <... futex resumed>) = 0 [pid 4561] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4560] exit_group(0) = ? [pid 4561] <... futex resumed>) = ? [pid 4561] +++ exited with 0 +++ [pid 4560] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18088", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18088", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18088/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18088/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18088/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18088") = 0 mkdir("./18089", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4562 ./strace-static-x86_64: Process 4562 attached [pid 4562] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4562] chdir("./18089") = 0 [pid 4562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4562] setpgid(0, 0) = 0 [pid 4562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4562] write(3, "1000", 4) = 4 [pid 4562] close(3) = 0 [pid 4562] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4562] write(1, "executing program\n", 18) = 18 [pid 4562] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4562] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4562] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4562] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4562] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4563]}, 88) = 4563 [pid 4562] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4562] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4563 attached [pid 4563] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4563] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4563] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4563] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4563] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4562] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4563] <... futex resumed>) = 0 [pid 4563] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4562] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4563] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4562] <... futex resumed>) = 0 [pid 4562] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4563] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4563] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4562] <... futex resumed>) = 0 [pid 4562] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4563] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4563] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4562] <... futex resumed>) = 0 [pid 4562] exit_group(0) = ? [pid 4563] +++ exited with 0 +++ [pid 4562] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18089", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18089", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18089/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18089/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18089/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18089") = 0 mkdir("./18090", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4564 ./strace-static-x86_64: Process 4564 attached [pid 4564] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4564] chdir("./18090") = 0 [pid 4564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4564] setpgid(0, 0) = 0 [pid 4564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4564] write(3, "1000", 4) = 4 [pid 4564] close(3) = 0 [pid 4564] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4564] write(1, "executing program\n", 18) = 18 [pid 4564] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4564] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4564] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4564] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4564] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4564] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4564] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4565]}, 88) = 4565 [pid 4564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4564] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4564] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4565 attached [pid 4565] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4565] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4565] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4565] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4564] <... futex resumed>) = 0 [pid 4564] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4564] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4565] <... futex resumed>) = 1 [pid 4565] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4565] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4564] <... futex resumed>) = 0 [pid 4564] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4564] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4565] <... futex resumed>) = 1 [pid 4565] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4565] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4564] <... futex resumed>) = 0 [pid 4564] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4564] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4565] <... futex resumed>) = 1 [pid 4565] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4565] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4564] <... futex resumed>) = 0 [pid 4564] exit_group(0) = ? [pid 4565] <... futex resumed>) = ? [pid 4565] +++ exited with 0 +++ [pid 4564] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18090", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18090", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18090/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18090/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18090/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18090") = 0 mkdir("./18091", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4566 ./strace-static-x86_64: Process 4566 attached [pid 4566] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4566] chdir("./18091") = 0 [pid 4566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4566] setpgid(0, 0) = 0 [pid 4566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4566] write(3, "1000", 4) = 4 [pid 4566] close(3) = 0 [pid 4566] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4566] write(1, "executing program\n", 18executing program ) = 18 [pid 4566] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4566] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4566] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4566] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4566] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4566] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4567]}, 88) = 4567 [pid 4566] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4566] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4566] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4567 attached [pid 4567] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4567] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4567] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4567] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4566] <... futex resumed>) = 0 [pid 4566] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4566] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4567] <... futex resumed>) = 1 [pid 4567] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4567] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4566] <... futex resumed>) = 0 [pid 4566] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4566] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4567] <... futex resumed>) = 1 [pid 4567] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4567] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4566] <... futex resumed>) = 0 [pid 4566] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4566] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4567] <... futex resumed>) = 1 [pid 4567] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4567] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4566] <... futex resumed>) = 0 [pid 4566] exit_group(0) = ? [pid 4567] <... futex resumed>) = ? [pid 4567] +++ exited with 0 +++ [pid 4566] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4566, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18091", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18091", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18091/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18091/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18091/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18091") = 0 mkdir("./18092", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4568 ./strace-static-x86_64: Process 4568 attached [pid 4568] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4568] chdir("./18092") = 0 [pid 4568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4568] setpgid(0, 0) = 0 [pid 4568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4568] write(3, "1000", 4) = 4 [pid 4568] close(3) = 0 [pid 4568] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4568] write(1, "executing program\n", 18) = 18 [pid 4568] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4568] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4568] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4568] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4568] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4569]}, 88) = 4569 [pid 4568] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4568] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4569 attached [pid 4569] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4569] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4569] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4569] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4568] <... futex resumed>) = 0 [pid 4568] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4569] <... futex resumed>) = 1 [pid 4569] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4569] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4568] <... futex resumed>) = 0 [pid 4568] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4569] <... futex resumed>) = 1 [pid 4569] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4569] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4568] <... futex resumed>) = 0 [pid 4568] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4569] <... futex resumed>) = 1 [pid 4569] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4569] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4568] <... futex resumed>) = 0 [pid 4568] exit_group(0) = ? [pid 4569] +++ exited with 0 +++ [pid 4568] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18092", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18092", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18092/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18092/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18092/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18092") = 0 mkdir("./18093", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4570 ./strace-static-x86_64: Process 4570 attached [pid 4570] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4570] chdir("./18093") = 0 [pid 4570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4570] setpgid(0, 0) = 0 [pid 4570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4570] write(3, "1000", 4) = 4 [pid 4570] close(3) = 0 [pid 4570] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4570] write(1, "executing program\n", 18executing program ) = 18 [pid 4570] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4570] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4570] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4570] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4570] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4570] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4571 attached => {parent_tid=[4571]}, 88) = 4571 [pid 4571] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4571] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4570] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4570] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4571] <... futex resumed>) = 0 [pid 4571] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4571] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4570] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4570] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4571] <... futex resumed>) = 0 [pid 4571] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4571] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4570] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4570] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4571] <... futex resumed>) = 0 [pid 4571] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4571] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4570] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4570] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4571] <... futex resumed>) = 0 [pid 4571] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4571] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4570] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4570] exit_group(0) = ? [pid 4571] <... futex resumed>) = ? [pid 4571] +++ exited with 0 +++ [pid 4570] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4570, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18093", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18093", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18093/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18093/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18093/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18093") = 0 mkdir("./18094", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4572 ./strace-static-x86_64: Process 4572 attached [pid 4572] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4572] chdir("./18094") = 0 [pid 4572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4572] setpgid(0, 0) = 0 [pid 4572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4572] write(3, "1000", 4) = 4 [pid 4572] close(3) = 0 [pid 4572] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4572] write(1, "executing program\n", 18executing program ) = 18 [pid 4572] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4572] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4572] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4572] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4572] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4572] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4572] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4573 attached => {parent_tid=[4573]}, 88) = 4573 [pid 4573] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4573] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4572] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4572] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4573] <... futex resumed>) = 0 [pid 4573] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4573] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4573] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4572] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4572] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4573] <... futex resumed>) = 0 [pid 4573] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4573] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4573] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4572] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4572] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4573] <... futex resumed>) = 0 [pid 4573] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4573] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4573] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4572] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4572] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4573] <... futex resumed>) = 0 [pid 4573] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4573] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4573] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4572] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4572] exit_group(0) = ? [pid 4573] <... futex resumed>) = ? [pid 4573] +++ exited with 0 +++ [pid 4572] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4572, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18094", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18094", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18094/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18094/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18094/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18094") = 0 mkdir("./18095", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4574 attached , child_tidptr=0x55558931b690) = 4574 [pid 4574] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4574] chdir("./18095") = 0 [pid 4574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4574] setpgid(0, 0) = 0 [pid 4574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4574] write(3, "1000", 4) = 4 [pid 4574] close(3) = 0 [pid 4574] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4574] write(1, "executing program\n", 18) = 18 [pid 4574] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4574] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4574] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4574] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4574] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4575 attached [pid 4575] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4574] <... clone3 resumed> => {parent_tid=[4575]}, 88) = 4575 [pid 4574] rt_sigprocmask(SIG_SETMASK, [], [pid 4575] <... set_robust_list resumed>) = 0 [pid 4574] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4575] rt_sigprocmask(SIG_SETMASK, [], [pid 4574] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4575] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4574] <... futex resumed>) = 0 [pid 4575] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4574] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4575] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4575] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4574] <... futex resumed>) = 0 [pid 4574] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4575] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4575] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4574] <... futex resumed>) = 0 [pid 4575] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4574] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4574] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4575] <... futex resumed>) = 0 [pid 4575] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4575] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4574] <... futex resumed>) = 0 [pid 4574] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4575] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4575] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4574] <... futex resumed>) = 0 [pid 4574] exit_group(0) = ? [pid 4575] +++ exited with 0 +++ [pid 4574] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18095", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18095", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18095/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18095/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18095/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18095") = 0 mkdir("./18096", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4576 ./strace-static-x86_64: Process 4576 attached [pid 4576] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4576] chdir("./18096") = 0 [pid 4576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4576] setpgid(0, 0) = 0 [pid 4576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4576] write(3, "1000", 4) = 4 [pid 4576] close(3) = 0 [pid 4576] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4576] write(1, "executing program\n", 18) = 18 [pid 4576] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4576] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4576] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4576] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4576] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4576] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4576] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4577]}, 88) = 4577 [pid 4576] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4576] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4576] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4577 attached [pid 4577] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4577] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4577] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4577] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4576] <... futex resumed>) = 0 [pid 4576] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4576] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4577] <... futex resumed>) = 1 [pid 4577] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4577] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4576] <... futex resumed>) = 0 [pid 4576] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4576] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4577] <... futex resumed>) = 1 [pid 4577] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4577] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4576] <... futex resumed>) = 0 [pid 4576] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4576] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4577] <... futex resumed>) = 1 [pid 4577] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4577] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4576] <... futex resumed>) = 0 [pid 4576] exit_group(0) = ? [pid 4577] <... futex resumed>) = ? [pid 4577] +++ exited with 0 +++ [pid 4576] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18096", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18096", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18096/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18096/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18096/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18096") = 0 mkdir("./18097", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4578 ./strace-static-x86_64: Process 4578 attached [pid 4578] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4578] chdir("./18097") = 0 [pid 4578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4578] setpgid(0, 0) = 0 [pid 4578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4578] write(3, "1000", 4) = 4 [pid 4578] close(3) = 0 [pid 4578] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4578] write(1, "executing program\n", 18executing program ) = 18 [pid 4578] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4578] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4578] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4578] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4578] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4578] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4579 attached => {parent_tid=[4579]}, 88) = 4579 [pid 4579] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4579] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4579] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4578] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4578] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4579] <... futex resumed>) = 0 [pid 4578] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4579] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4579] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4579] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4578] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4579] <... futex resumed>) = 0 [pid 4579] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4579] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4579] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4578] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4578] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4579] <... futex resumed>) = 0 [pid 4579] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4579] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4579] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4578] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4578] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4579] <... futex resumed>) = 0 [pid 4579] write(-1, "0x0000000000000001", 18 [pid 4578] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4579] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4579] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4579] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4578] exit_group(0) = ? [pid 4579] <... futex resumed>) = ? [pid 4579] +++ exited with 0 +++ [pid 4578] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4578, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18097", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18097", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18097/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18097/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18097/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18097") = 0 mkdir("./18098", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4580 attached , child_tidptr=0x55558931b690) = 4580 [pid 4580] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4580] chdir("./18098") = 0 [pid 4580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4580] setpgid(0, 0) = 0 [pid 4580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4580] write(3, "1000", 4) = 4 [pid 4580] close(3) = 0 [pid 4580] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4580] write(1, "executing program\n", 18executing program ) = 18 [pid 4580] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4580] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4580] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4580] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4580] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4581]}, 88) = 4581 ./strace-static-x86_64: Process 4581 attached [pid 4581] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4581] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4581] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4580] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4580] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4581] <... futex resumed>) = 0 [pid 4581] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4580] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4581] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4581] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4580] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4581] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4581] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4580] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4581] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4581] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4580] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4581] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4581] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4580] exit_group(0) = ? [pid 4581] +++ exited with 0 +++ [pid 4580] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18098", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18098", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18098/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18098/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18098/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18098") = 0 mkdir("./18099", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4582 ./strace-static-x86_64: Process 4582 attached [pid 4582] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4582] chdir("./18099") = 0 [pid 4582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4582] setpgid(0, 0) = 0 [pid 4582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4582] write(3, "1000", 4) = 4 [pid 4582] close(3) = 0 [pid 4582] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4582] write(1, "executing program\n", 18executing program ) = 18 [pid 4582] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4582] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4582] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4582] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4582] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4582] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4582] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4583 attached => {parent_tid=[4583]}, 88) = 4583 [pid 4583] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4582] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4582] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] <... set_robust_list resumed>) = 0 [pid 4582] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4583] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4583] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4583] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4582] <... futex resumed>) = 0 [pid 4582] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4582] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4583] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4583] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4582] <... futex resumed>) = 0 [pid 4582] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4582] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4583] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4583] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4582] <... futex resumed>) = 0 [pid 4582] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4582] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4583] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4583] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4582] <... futex resumed>) = 0 [pid 4582] exit_group(0) = ? [pid 4583] +++ exited with 0 +++ [pid 4582] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18099", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18099", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18099/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18099/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18099/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18099") = 0 mkdir("./18100", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4584 ./strace-static-x86_64: Process 4584 attached [pid 4584] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4584] chdir("./18100") = 0 [pid 4584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4584] setpgid(0, 0) = 0 [pid 4584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4584] write(3, "1000", 4) = 4 [pid 4584] close(3) = 0 [pid 4584] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4584] write(1, "executing program\n", 18executing program ) = 18 [pid 4584] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4584] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4584] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4584] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4584] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4584] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4584] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4585]}, 88) = 4585 ./strace-static-x86_64: Process 4585 attached [pid 4585] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4585] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4585] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4584] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4584] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4585] <... futex resumed>) = 0 [pid 4585] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4584] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4585] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4585] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4584] <... futex resumed>) = 0 [pid 4584] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4584] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4585] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4585] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4584] <... futex resumed>) = 0 [pid 4584] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4584] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4585] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4585] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4584] <... futex resumed>) = 0 [pid 4584] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4584] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4585] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4585] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4584] <... futex resumed>) = 0 [pid 4584] exit_group(0) = ? [pid 4585] +++ exited with 0 +++ [pid 4584] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18100", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18100/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18100/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18100") = 0 mkdir("./18101", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4586 attached , child_tidptr=0x55558931b690) = 4586 [pid 4586] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4586] chdir("./18101") = 0 [pid 4586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4586] setpgid(0, 0) = 0 [pid 4586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4586] write(3, "1000", 4) = 4 [pid 4586] close(3) = 0 [pid 4586] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4586] write(1, "executing program\n", 18) = 18 [pid 4586] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4586] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4586] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4586] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4586] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4587 attached => {parent_tid=[4587]}, 88) = 4587 [pid 4586] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4586] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4587] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4587] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4587] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4586] <... futex resumed>) = 0 [pid 4586] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4587] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4586] <... futex resumed>) = 0 [pid 4586] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4587] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4586] <... futex resumed>) = 0 [pid 4586] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4587] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4587] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4586] <... futex resumed>) = 0 [pid 4586] exit_group(0 [pid 4587] <... futex resumed>) = ? [pid 4586] <... exit_group resumed>) = ? [pid 4587] +++ exited with 0 +++ [pid 4586] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18101", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18101/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18101/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18101") = 0 mkdir("./18102", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4588 ./strace-static-x86_64: Process 4588 attached [pid 4588] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4588] chdir("./18102") = 0 [pid 4588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4588] setpgid(0, 0) = 0 [pid 4588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4588] write(3, "1000", 4) = 4 [pid 4588] close(3) = 0 [pid 4588] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4588] write(1, "executing program\n", 18executing program ) = 18 [pid 4588] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4588] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4588] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4588] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4588] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4588] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4588] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4589 attached => {parent_tid=[4589]}, 88) = 4589 [pid 4589] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4589] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4589] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4588] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4588] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4589] <... futex resumed>) = 0 [pid 4589] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4588] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4589] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4589] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4588] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4589] <... futex resumed>) = 0 [pid 4589] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4588] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4589] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4588] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4589] <... futex resumed>) = 0 [pid 4588] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4589] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4589] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4588] <... futex resumed>) = 0 [pid 4588] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4588] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4589] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4589] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4588] <... futex resumed>) = 0 [pid 4589] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4588] exit_group(0) = ? [pid 4589] <... futex resumed>) = ? [pid 4589] +++ exited with 0 +++ [pid 4588] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18102", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18102/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18102/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18102") = 0 mkdir("./18103", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4590 attached , child_tidptr=0x55558931b690) = 4590 [pid 4590] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4590] chdir("./18103") = 0 [pid 4590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4590] setpgid(0, 0) = 0 [pid 4590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4590] write(3, "1000", 4) = 4 [pid 4590] close(3) = 0 [pid 4590] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4590] write(1, "executing program\n", 18executing program ) = 18 [pid 4590] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4590] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4590] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4590] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4590] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4590] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4590] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4591]}, 88) = 4591 [pid 4590] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4590] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4590] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4591 attached [pid 4591] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4591] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4591] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4591] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4590] <... futex resumed>) = 0 [pid 4590] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4590] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4591] <... futex resumed>) = 1 [pid 4591] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4591] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4590] <... futex resumed>) = 0 [pid 4590] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4590] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4591] <... futex resumed>) = 1 [pid 4591] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4591] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4590] <... futex resumed>) = 0 [pid 4590] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4590] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4591] <... futex resumed>) = 1 [pid 4591] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4591] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4590] <... futex resumed>) = 0 [pid 4590] exit_group(0) = ? [pid 4591] <... futex resumed>) = ? [pid 4591] +++ exited with 0 +++ [pid 4590] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18103", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18103/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18103/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18103") = 0 mkdir("./18104", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4592 ./strace-static-x86_64: Process 4592 attached [pid 4592] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4592] chdir("./18104") = 0 [pid 4592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4592] setpgid(0, 0) = 0 [pid 4592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4592] write(3, "1000", 4) = 4 [pid 4592] close(3) = 0 [pid 4592] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4592] write(1, "executing program\n", 18executing program ) = 18 [pid 4592] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4592] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4592] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4592] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4592] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4592] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4593 attached => {parent_tid=[4593]}, 88) = 4593 [pid 4593] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4593] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4593] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4592] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4592] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4593] <... futex resumed>) = 0 [pid 4593] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4593] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4593] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4592] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4592] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4593] <... futex resumed>) = 0 [pid 4593] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4593] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4593] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4592] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4592] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4593] <... futex resumed>) = 0 [pid 4593] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4593] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4593] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4592] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4592] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4593] <... futex resumed>) = 0 [pid 4592] <... futex resumed>) = 1 [pid 4593] write(-1, "0x0000000000000001", 18 [pid 4592] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4593] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4593] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4592] <... futex resumed>) = 0 [pid 4592] exit_group(0) = ? [pid 4593] +++ exited with 0 +++ [pid 4592] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18104", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18104/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18104/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18104") = 0 mkdir("./18105", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4594 ./strace-static-x86_64: Process 4594 attached [pid 4594] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4594] chdir("./18105") = 0 [pid 4594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4594] setpgid(0, 0) = 0 [pid 4594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4594] write(3, "1000", 4) = 4 [pid 4594] close(3) = 0 [pid 4594] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4594] write(1, "executing program\n", 18) = 18 [pid 4594] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4594] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4594] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4594] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4594] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4594] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4595 attached => {parent_tid=[4595]}, 88) = 4595 [pid 4594] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4594] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4594] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4595] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4595] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4595] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4595] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4594] <... futex resumed>) = 0 [pid 4594] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4594] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4595] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4595] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4594] <... futex resumed>) = 0 [pid 4594] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4594] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4595] <... futex resumed>) = 1 [pid 4595] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4595] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4594] <... futex resumed>) = 0 [pid 4594] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4594] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4595] <... futex resumed>) = 1 [pid 4595] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4595] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4594] <... futex resumed>) = 0 [pid 4594] exit_group(0) = ? [pid 4595] <... futex resumed>) = ? [pid 4595] +++ exited with 0 +++ [pid 4594] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4594, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18105", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18105/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18105/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18105") = 0 mkdir("./18106", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4596 ./strace-static-x86_64: Process 4596 attached [pid 4596] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4596] chdir("./18106") = 0 [pid 4596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4596] setpgid(0, 0) = 0 [pid 4596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4596] write(3, "1000", 4) = 4 [pid 4596] close(3) = 0 [pid 4596] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4596] write(1, "executing program\n", 18executing program ) = 18 [pid 4596] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4596] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4596] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4596] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4596] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4596] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4596] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4597 attached => {parent_tid=[4597]}, 88) = 4597 [pid 4597] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4597] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4597] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4596] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4596] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4597] <... futex resumed>) = 0 [pid 4597] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4597] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4597] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4596] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4596] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4597] <... futex resumed>) = 0 [pid 4597] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4597] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4597] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4596] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4596] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4597] <... futex resumed>) = 0 [pid 4597] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4597] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4597] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4596] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4596] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4597] <... futex resumed>) = 0 [pid 4597] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4597] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4597] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4596] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4596] exit_group(0) = ? [pid 4597] <... futex resumed>) = ? [pid 4597] +++ exited with 0 +++ [pid 4596] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18106", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18106/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18106/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18106") = 0 mkdir("./18107", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4598 ./strace-static-x86_64: Process 4598 attached [pid 4598] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4598] chdir("./18107") = 0 [pid 4598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4598] setpgid(0, 0) = 0 [pid 4598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4598] write(3, "1000", 4) = 4 [pid 4598] close(3) = 0 [pid 4598] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4598] write(1, "executing program\n", 18executing program ) = 18 [pid 4598] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4598] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4598] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4598] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4598] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4598] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4599 attached => {parent_tid=[4599]}, 88) = 4599 [pid 4599] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4599] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4599] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4598] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4599] <... futex resumed>) = 0 [pid 4599] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4598] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4599] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4599] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4598] <... futex resumed>) = 0 [pid 4599] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4598] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4599] <... futex resumed>) = 0 [pid 4599] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4599] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4599] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4598] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4598] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4599] <... futex resumed>) = 0 [pid 4599] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4599] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4599] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4598] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4598] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4599] <... futex resumed>) = 0 [pid 4599] write(-1, "0x0000000000000001", 18 [pid 4598] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4599] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4599] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4599] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4598] exit_group(0) = ? [pid 4599] <... futex resumed>) = ? [pid 4599] +++ exited with 0 +++ [pid 4598] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4598, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18107", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18107/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18107/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18107") = 0 mkdir("./18108", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4600 ./strace-static-x86_64: Process 4600 attached [pid 4600] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4600] chdir("./18108") = 0 [pid 4600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4600] setpgid(0, 0) = 0 [pid 4600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4600] write(3, "1000", 4) = 4 [pid 4600] close(3) = 0 [pid 4600] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4600] write(1, "executing program\n", 18executing program ) = 18 [pid 4600] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4600] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4600] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4600] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4600] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4600] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4601]}, 88) = 4601 ./strace-static-x86_64: Process 4601 attached [pid 4601] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4601] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4601] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4600] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4601] <... futex resumed>) = 0 [pid 4601] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4601] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4600] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4600] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4601] <... futex resumed>) = 0 [pid 4601] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4601] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4600] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4600] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4601] <... futex resumed>) = 0 [pid 4601] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4601] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4600] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4600] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4601] <... futex resumed>) = 0 [pid 4601] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4601] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4600] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4600] exit_group(0) = ? [pid 4601] <... futex resumed>) = ? [pid 4601] +++ exited with 0 +++ [pid 4600] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18108", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18108/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18108/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18108") = 0 mkdir("./18109", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4602 ./strace-static-x86_64: Process 4602 attached [pid 4602] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4602] chdir("./18109") = 0 [pid 4602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4602] setpgid(0, 0) = 0 [pid 4602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4602] write(3, "1000", 4) = 4 [pid 4602] close(3) = 0 executing program [pid 4602] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4602] write(1, "executing program\n", 18) = 18 [pid 4602] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4602] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4602] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4602] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4602] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4602] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4603]}, 88) = 4603 [pid 4602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4602] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4602] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4603 attached [pid 4603] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4603] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4603] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4603] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4602] <... futex resumed>) = 0 [pid 4602] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4602] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4603] <... futex resumed>) = 1 [pid 4603] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4603] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4602] <... futex resumed>) = 0 [pid 4602] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4602] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4603] <... futex resumed>) = 1 [pid 4603] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4603] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4602] <... futex resumed>) = 0 [pid 4602] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4602] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4603] <... futex resumed>) = 1 [pid 4603] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4603] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4602] <... futex resumed>) = 0 [pid 4602] exit_group(0) = ? [pid 4603] <... futex resumed>) = ? [pid 4603] +++ exited with 0 +++ [pid 4602] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18109", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18109/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18109/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18109") = 0 mkdir("./18110", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4604 attached , child_tidptr=0x55558931b690) = 4604 [pid 4604] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4604] chdir("./18110") = 0 [pid 4604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4604] setpgid(0, 0) = 0 [pid 4604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4604] write(3, "1000", 4) = 4 [pid 4604] close(3) = 0 [pid 4604] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4604] write(1, "executing program\n", 18) = 18 [pid 4604] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4604] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4604] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4604] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4604] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4605]}, 88) = 4605 [pid 4604] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4604] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4605 attached [pid 4605] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4605] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4605] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4605] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4605] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4604] <... futex resumed>) = 0 [pid 4604] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4605] <... futex resumed>) = 0 [pid 4605] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4604] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4605] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4605] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4604] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4605] <... futex resumed>) = 0 [pid 4604] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4605] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4605] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4605] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4604] <... futex resumed>) = 0 [pid 4604] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4605] <... futex resumed>) = 0 [pid 4605] write(-1, "0x0000000000000001", 18 [pid 4604] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4605] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4605] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4605] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4604] exit_group(0) = ? [pid 4605] <... futex resumed>) = ? [pid 4605] +++ exited with 0 +++ [pid 4604] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18110", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18110/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18110/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18110") = 0 mkdir("./18111", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4606 ./strace-static-x86_64: Process 4606 attached [pid 4606] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4606] chdir("./18111") = 0 [pid 4606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4606] setpgid(0, 0) = 0 [pid 4606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4606] write(3, "1000", 4) = 4 [pid 4606] close(3) = 0 [pid 4606] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4606] write(1, "executing program\n", 18) = 18 [pid 4606] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4606] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4606] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4606] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4606] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4606] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4607]}, 88) = 4607 [pid 4606] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4606] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4606] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4607 attached [pid 4607] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4607] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4607] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4607] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4606] <... futex resumed>) = 0 [pid 4606] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4606] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4607] <... futex resumed>) = 1 [pid 4607] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4607] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4606] <... futex resumed>) = 0 [pid 4606] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4606] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4607] <... futex resumed>) = 1 [pid 4607] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4607] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4606] <... futex resumed>) = 0 [pid 4606] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4606] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4607] <... futex resumed>) = 1 [pid 4607] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4607] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4606] <... futex resumed>) = 0 [pid 4606] exit_group(0) = ? [pid 4607] +++ exited with 0 +++ [pid 4606] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18111", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18111/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18111/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18111") = 0 mkdir("./18112", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4608 ./strace-static-x86_64: Process 4608 attached [pid 4608] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4608] chdir("./18112") = 0 [pid 4608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4608] setpgid(0, 0) = 0 [pid 4608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4608] write(3, "1000", 4) = 4 [pid 4608] close(3) = 0 [pid 4608] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4608] write(1, "executing program\n", 18) = 18 [pid 4608] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4608] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4608] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4608] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4608] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4608] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4609 attached => {parent_tid=[4609]}, 88) = 4609 [pid 4609] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4609] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4609] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4608] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4608] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4609] <... futex resumed>) = 0 [pid 4609] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4608] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4609] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4609] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4609] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4608] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4609] <... futex resumed>) = 0 [pid 4609] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4608] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4609] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4609] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4609] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4608] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4609] <... futex resumed>) = 0 [pid 4609] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4609] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4609] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4608] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4608] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4609] <... futex resumed>) = 0 [pid 4609] write(-1, "0x0000000000000001", 18 [pid 4608] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4609] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4609] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4609] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4608] exit_group(0) = ? [pid 4609] <... futex resumed>) = ? [pid 4609] +++ exited with 0 +++ [pid 4608] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18112", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18112/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18112/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18112") = 0 mkdir("./18113", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4610 ./strace-static-x86_64: Process 4610 attached [pid 4610] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4610] chdir("./18113") = 0 [pid 4610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4610] setpgid(0, 0) = 0 [pid 4610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4610] write(3, "1000", 4) = 4 [pid 4610] close(3) = 0 executing program [pid 4610] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4610] write(1, "executing program\n", 18) = 18 [pid 4610] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4610] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4610] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4610] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4610] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4611 attached => {parent_tid=[4611]}, 88) = 4611 [pid 4610] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4610] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4611] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4611] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4611] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4611] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4610] <... futex resumed>) = 0 [pid 4610] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4611] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4611] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4610] <... futex resumed>) = 0 [pid 4610] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4611] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4611] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4610] <... futex resumed>) = 0 [pid 4610] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4611] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4611] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4610] <... futex resumed>) = 0 [pid 4611] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4610] exit_group(0) = ? [pid 4611] <... futex resumed>) = ? [pid 4611] +++ exited with 0 +++ [pid 4610] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18113", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18113/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18113/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18113") = 0 mkdir("./18114", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4612 ./strace-static-x86_64: Process 4612 attached [pid 4612] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4612] chdir("./18114") = 0 [pid 4612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4612] setpgid(0, 0) = 0 [pid 4612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4612] write(3, "1000", 4) = 4 [pid 4612] close(3) = 0 [pid 4612] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4612] write(1, "executing program\n", 18) = 18 [pid 4612] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4612] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4612] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4612] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4612] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4612] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4613]}, 88) = 4613 [pid 4612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4612] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4612] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4613 attached [pid 4613] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4613] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4613] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4612] <... futex resumed>) = 0 [pid 4612] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4612] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4613] <... futex resumed>) = 1 [pid 4613] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4613] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4612] <... futex resumed>) = 0 [pid 4612] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4612] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4613] <... futex resumed>) = 1 [pid 4613] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4613] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4612] <... futex resumed>) = 0 [pid 4612] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4612] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4613] <... futex resumed>) = 1 [pid 4613] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4613] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4612] <... futex resumed>) = 0 [pid 4612] exit_group(0) = ? [pid 4613] +++ exited with 0 +++ [pid 4612] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18114", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18114/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18114/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18114") = 0 mkdir("./18115", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4614 attached [pid 4614] set_robust_list(0x55558931b6a0, 24) = 0 [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 4614 [pid 4614] chdir("./18115") = 0 [pid 4614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4614] setpgid(0, 0) = 0 [pid 4614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4614] write(3, "1000", 4) = 4 [pid 4614] close(3) = 0 [pid 4614] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4614] write(1, "executing program\n", 18) = 18 [pid 4614] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4614] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4614] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4614] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4614] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4614] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4615]}, 88) = 4615 [pid 4614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4614] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4614] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4615 attached [pid 4615] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4615] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4615] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4614] <... futex resumed>) = 0 [pid 4614] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4614] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4615] <... futex resumed>) = 1 [pid 4615] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4615] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4614] <... futex resumed>) = 0 [pid 4614] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4614] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4615] <... futex resumed>) = 1 [pid 4615] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4615] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4614] <... futex resumed>) = 0 [pid 4614] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4614] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4615] <... futex resumed>) = 1 [pid 4615] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4615] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4614] <... futex resumed>) = 0 [pid 4614] exit_group(0) = ? [pid 4615] <... futex resumed>) = ? [pid 4615] +++ exited with 0 +++ [pid 4614] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18115", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18115/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18115/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18115") = 0 mkdir("./18116", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4616 ./strace-static-x86_64: Process 4616 attached [pid 4616] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4616] chdir("./18116") = 0 [pid 4616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4616] setpgid(0, 0) = 0 [pid 4616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4616] write(3, "1000", 4) = 4 [pid 4616] close(3) = 0 [pid 4616] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4616] write(1, "executing program\n", 18) = 18 [pid 4616] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4616] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4616] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4616] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4616] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4617 attached => {parent_tid=[4617]}, 88) = 4617 [pid 4617] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4616] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] <... set_robust_list resumed>) = 0 [pid 4617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4617] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4617] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4617] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4617] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4617] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4617] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4616] <... futex resumed>) = 0 [pid 4617] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4616] exit_group(0) = ? [pid 4617] <... futex resumed>) = ? [pid 4617] +++ exited with 0 +++ [pid 4616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18116", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18116/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18116/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18116/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18116") = 0 mkdir("./18117", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4618 attached , child_tidptr=0x55558931b690) = 4618 [pid 4618] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4618] chdir("./18117") = 0 [pid 4618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4618] setpgid(0, 0) = 0 [pid 4618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4618] write(3, "1000", 4) = 4 [pid 4618] close(3) = 0 [pid 4618] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4618] write(1, "executing program\n", 18) = 18 [pid 4618] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4618] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4618] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4618] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4618] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4618] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4619]}, 88) = 4619 [pid 4618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4618] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4618] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4619 attached [pid 4619] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4619] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4619] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4619] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4618] <... futex resumed>) = 0 [pid 4618] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4618] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4619] <... futex resumed>) = 1 [pid 4619] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4619] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4618] <... futex resumed>) = 0 [pid 4618] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4618] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4619] <... futex resumed>) = 1 [pid 4619] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4619] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4618] <... futex resumed>) = 0 [pid 4618] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4618] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4619] <... futex resumed>) = 1 [pid 4619] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4619] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4618] <... futex resumed>) = 0 [pid 4618] exit_group(0) = ? [pid 4619] <... futex resumed>) = ? [pid 4619] +++ exited with 0 +++ [pid 4618] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18117", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18117/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18117/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18117") = 0 mkdir("./18118", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4620 attached , child_tidptr=0x55558931b690) = 4620 [pid 4620] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4620] chdir("./18118") = 0 [pid 4620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4620] setpgid(0, 0) = 0 [pid 4620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4620] write(3, "1000", 4) = 4 [pid 4620] close(3) = 0 [pid 4620] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4620] write(1, "executing program\n", 18) = 18 [pid 4620] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4620] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4620] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4620] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4620] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4620] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4621 attached [pid 4621] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4621] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4620] <... clone3 resumed> => {parent_tid=[4621]}, 88) = 4621 [pid 4620] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4620] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4621] <... futex resumed>) = 0 [pid 4621] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4621] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4621] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4620] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4620] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4621] <... futex resumed>) = 0 [pid 4621] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4621] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4621] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4620] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4620] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4621] <... futex resumed>) = 0 [pid 4620] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4621] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4621] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4621] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4620] <... futex resumed>) = 0 [pid 4621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4620] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4620] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4621] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4621] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4620] <... futex resumed>) = 0 [pid 4621] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4620] exit_group(0) = ? [pid 4621] <... futex resumed>) = ? [pid 4621] +++ exited with 0 +++ [pid 4620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18118", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18118/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18118/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18118") = 0 mkdir("./18119", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4622 ./strace-static-x86_64: Process 4622 attached [pid 4622] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4622] chdir("./18119") = 0 [pid 4622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4622] setpgid(0, 0) = 0 [pid 4622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4622] write(3, "1000", 4) = 4 [pid 4622] close(3) = 0 [pid 4622] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4622] write(1, "executing program\n", 18executing program ) = 18 [pid 4622] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4622] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4622] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4622] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4623 attached => {parent_tid=[4623]}, 88) = 4623 [pid 4622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4622] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4623] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4623] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4623] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4623] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4622] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4623] <... futex resumed>) = 1 [pid 4623] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4623] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4622] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4623] <... futex resumed>) = 1 [pid 4623] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4623] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4622] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4623] <... futex resumed>) = 1 [pid 4623] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4623] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4622] exit_group(0) = ? [pid 4623] <... futex resumed>) = ? [pid 4623] +++ exited with 0 +++ [pid 4622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18119", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18119/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18119/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18119") = 0 mkdir("./18120", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4624 ./strace-static-x86_64: Process 4624 attached [pid 4624] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4624] chdir("./18120") = 0 [pid 4624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4624] setpgid(0, 0) = 0 [pid 4624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4624] write(3, "1000", 4) = 4 [pid 4624] close(3) = 0 [pid 4624] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4624] write(1, "executing program\n", 18executing program ) = 18 [pid 4624] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4624] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4624] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4624] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4624] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4624] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4624] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4625 attached => {parent_tid=[4625]}, 88) = 4625 [pid 4625] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4625] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4625] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4624] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4624] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4625] <... futex resumed>) = 0 [pid 4624] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4625] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4625] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4624] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4625] <... futex resumed>) = 0 [pid 4625] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4625] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4624] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4625] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4624] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4625] <... futex resumed>) = 0 [pid 4625] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4625] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4624] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4624] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4625] <... futex resumed>) = 0 [pid 4625] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4625] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4624] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4624] exit_group(0) = ? [pid 4625] <... futex resumed>) = ? [pid 4625] +++ exited with 0 +++ [pid 4624] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18120", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18120/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18120/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18120/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18120") = 0 mkdir("./18121", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4626 attached , child_tidptr=0x55558931b690) = 4626 [pid 4626] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4626] chdir("./18121") = 0 [pid 4626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4626] setpgid(0, 0) = 0 [pid 4626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4626] write(3, "1000", 4) = 4 [pid 4626] close(3) = 0 [pid 4626] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4626] write(1, "executing program\n", 18) = 18 [pid 4626] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4626] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4626] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4626] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4626] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4626] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4627]}, 88) = 4627 [pid 4626] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4626] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4626] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4627 attached [pid 4627] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4627] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4627] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4627] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4626] <... futex resumed>) = 0 [pid 4626] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4626] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4627] <... futex resumed>) = 1 [pid 4627] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4627] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4626] <... futex resumed>) = 0 [pid 4626] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4626] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4627] <... futex resumed>) = 1 [pid 4627] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4627] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4626] <... futex resumed>) = 0 [pid 4626] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4626] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4627] <... futex resumed>) = 1 [pid 4627] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4627] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4626] <... futex resumed>) = 0 [pid 4626] exit_group(0) = ? [pid 4627] <... futex resumed>) = ? [pid 4627] +++ exited with 0 +++ [pid 4626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18121", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18121/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18121/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18121") = 0 mkdir("./18122", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4628 ./strace-static-x86_64: Process 4628 attached [pid 4628] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4628] chdir("./18122") = 0 [pid 4628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4628] setpgid(0, 0) = 0 [pid 4628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4628] write(3, "1000", 4) = 4 [pid 4628] close(3) = 0 [pid 4628] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4628] write(1, "executing program\n", 18executing program ) = 18 [pid 4628] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4628] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4628] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4628] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4629 attached => {parent_tid=[4629]}, 88) = 4629 [pid 4628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4628] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4629] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4629] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4629] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4628] <... futex resumed>) = 0 [pid 4628] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4629] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4629] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4628] <... futex resumed>) = 0 [pid 4628] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4629] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4629] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4628] <... futex resumed>) = 0 [pid 4628] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4629] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4629] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4628] <... futex resumed>) = 0 [pid 4628] exit_group(0) = ? [pid 4629] +++ exited with 0 +++ [pid 4628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18122", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18122/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18122/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18122/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18122") = 0 mkdir("./18123", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4630 ./strace-static-x86_64: Process 4630 attached [pid 4630] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4630] chdir("./18123") = 0 [pid 4630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4630] setpgid(0, 0) = 0 [pid 4630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4630] write(3, "1000", 4) = 4 [pid 4630] close(3) = 0 [pid 4630] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4630] write(1, "executing program\n", 18) = 18 [pid 4630] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4630] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4630] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4630] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4630] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4630] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4631]}, 88) = 4631 ./strace-static-x86_64: Process 4631 attached [pid 4631] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4631] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4630] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4631] <... futex resumed>) = 0 [pid 4631] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4630] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4631] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4631] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4631] <... futex resumed>) = 0 [pid 4630] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4631] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4630] <... futex resumed>) = 0 [pid 4631] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4630] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4631] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4630] <... futex resumed>) = 0 [pid 4630] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4630] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4631] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4631] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4630] <... futex resumed>) = 0 [pid 4630] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4630] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4631] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4631] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4630] <... futex resumed>) = 0 [pid 4630] exit_group(0) = ? [pid 4631] +++ exited with 0 +++ [pid 4630] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4630, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18123", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18123/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18123/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18123/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18123") = 0 mkdir("./18124", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4632 attached , child_tidptr=0x55558931b690) = 4632 [pid 4632] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4632] chdir("./18124") = 0 [pid 4632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4632] setpgid(0, 0) = 0 [pid 4632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4632] write(3, "1000", 4) = 4 [pid 4632] close(3) = 0 [pid 4632] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4632] write(1, "executing program\n", 18executing program ) = 18 [pid 4632] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4632] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4632] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4632] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4632] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4632] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4633]}, 88) = 4633 [pid 4632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4632] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4632] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4633 attached [pid 4633] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4633] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4633] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4632] <... futex resumed>) = 0 [pid 4632] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4632] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4633] <... futex resumed>) = 1 [pid 4633] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4633] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4632] <... futex resumed>) = 0 [pid 4632] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4632] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4633] <... futex resumed>) = 1 [pid 4633] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4633] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4632] <... futex resumed>) = 0 [pid 4632] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4632] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4633] <... futex resumed>) = 1 [pid 4633] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4633] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4632] <... futex resumed>) = 0 [pid 4632] exit_group(0) = ? [pid 4633] <... futex resumed>) = ? [pid 4633] +++ exited with 0 +++ [pid 4632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18124", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18124/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18124/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18124") = 0 mkdir("./18125", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4634 ./strace-static-x86_64: Process 4634 attached [pid 4634] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4634] chdir("./18125") = 0 [pid 4634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4634] setpgid(0, 0) = 0 [pid 4634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4634] write(3, "1000", 4) = 4 [pid 4634] close(3) = 0 [pid 4634] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4634] write(1, "executing program\n", 18executing program ) = 18 [pid 4634] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4634] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4634] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4634] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4635]}, 88) = 4635 [pid 4634] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4634] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4635 attached [pid 4635] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4635] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4635] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4634] <... futex resumed>) = 0 [pid 4634] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4635] <... futex resumed>) = 1 [pid 4635] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4635] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4634] <... futex resumed>) = 0 [pid 4634] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4635] <... futex resumed>) = 1 [pid 4635] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4635] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4634] <... futex resumed>) = 0 [pid 4634] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4635] <... futex resumed>) = 1 [pid 4635] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4635] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4634] <... futex resumed>) = 0 [pid 4634] exit_group(0) = ? [pid 4635] +++ exited with 0 +++ [pid 4634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18125", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18125/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18125/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18125/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18125") = 0 mkdir("./18126", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4636 ./strace-static-x86_64: Process 4636 attached [pid 4636] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4636] chdir("./18126") = 0 [pid 4636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4636] setpgid(0, 0) = 0 [pid 4636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4636] write(3, "1000", 4) = 4 [pid 4636] close(3) = 0 [pid 4636] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4636] write(1, "executing program\n", 18) = 18 [pid 4636] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4636] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4636] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4636] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4636] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4636] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4637]}, 88) = 4637 [pid 4636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4636] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4636] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4637 attached [pid 4637] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4637] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4637] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4636] <... futex resumed>) = 0 [pid 4636] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4636] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4637] <... futex resumed>) = 1 [pid 4637] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4637] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4636] <... futex resumed>) = 0 [pid 4636] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4636] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4637] <... futex resumed>) = 1 [pid 4637] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4637] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4636] <... futex resumed>) = 0 [pid 4636] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4636] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4637] <... futex resumed>) = 1 [pid 4637] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4637] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4636] <... futex resumed>) = 0 [pid 4636] exit_group(0) = ? [pid 4637] <... futex resumed>) = ? [pid 4637] +++ exited with 0 +++ [pid 4636] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18126", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18126/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18126/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18126") = 0 mkdir("./18127", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4638 attached , child_tidptr=0x55558931b690) = 4638 [pid 4638] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4638] chdir("./18127") = 0 [pid 4638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4638] setpgid(0, 0) = 0 [pid 4638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4638] write(3, "1000", 4) = 4 [pid 4638] close(3) = 0 [pid 4638] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4638] write(1, "executing program\n", 18executing program ) = 18 [pid 4638] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4638] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4638] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4638] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4638] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4638] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4639 attached => {parent_tid=[4639]}, 88) = 4639 [pid 4639] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4639] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4638] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4639] <... futex resumed>) = 0 [pid 4639] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4639] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4639] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4638] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4638] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4639] <... futex resumed>) = 0 [pid 4639] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4638] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4639] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4639] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4638] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4639] <... futex resumed>) = 0 [pid 4639] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4639] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4639] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4638] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4638] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4639] <... futex resumed>) = 0 [pid 4639] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4639] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4639] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4638] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4638] exit_group(0) = ? [pid 4639] <... futex resumed>) = ? [pid 4639] +++ exited with 0 +++ [pid 4638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4638, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18127", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18127/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18127/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18127") = 0 mkdir("./18128", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4640 attached , child_tidptr=0x55558931b690) = 4640 [pid 4640] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4640] chdir("./18128") = 0 [pid 4640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4640] setpgid(0, 0) = 0 [pid 4640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4640] write(3, "1000", 4) = 4 [pid 4640] close(3) = 0 [pid 4640] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4640] write(1, "executing program\n", 18executing program ) = 18 [pid 4640] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4640] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4640] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4640] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4640] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4641 attached [pid 4641] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4640] <... clone3 resumed> => {parent_tid=[4641]}, 88) = 4641 [pid 4640] rt_sigprocmask(SIG_SETMASK, [], [pid 4641] <... set_robust_list resumed>) = 0 [pid 4640] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4641] rt_sigprocmask(SIG_SETMASK, [], [pid 4640] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4641] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4640] <... futex resumed>) = 0 [pid 4641] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4640] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4641] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4641] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4640] <... futex resumed>) = 0 [pid 4640] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4641] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4641] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4640] <... futex resumed>) = 0 [pid 4640] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4641] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4641] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4640] <... futex resumed>) = 0 [pid 4640] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4641] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4641] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4640] <... futex resumed>) = 0 [pid 4640] exit_group(0) = ? [pid 4641] +++ exited with 0 +++ [pid 4640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18128", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18128/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18128/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18128/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18128") = 0 mkdir("./18129", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4642 ./strace-static-x86_64: Process 4642 attached [pid 4642] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4642] chdir("./18129") = 0 [pid 4642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4642] setpgid(0, 0) = 0 [pid 4642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4642] write(3, "1000", 4) = 4 [pid 4642] close(3) = 0 [pid 4642] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4642] write(1, "executing program\n", 18executing program ) = 18 [pid 4642] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4642] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4642] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4642] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4642] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4642] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4643 attached => {parent_tid=[4643]}, 88) = 4643 [pid 4642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4642] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4643] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4642] <... futex resumed>) = 0 [pid 4643] <... set_robust_list resumed>) = 0 [pid 4642] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4643] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4643] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4643] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4642] <... futex resumed>) = 0 [pid 4642] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4642] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4643] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4643] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4642] <... futex resumed>) = 0 [pid 4642] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4642] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4643] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4643] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4642] <... futex resumed>) = 0 [pid 4642] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4642] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4643] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4643] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4642] <... futex resumed>) = 0 [pid 4642] exit_group(0) = ? [pid 4643] +++ exited with 0 +++ [pid 4642] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18129", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18129/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18129/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18129") = 0 mkdir("./18130", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4644 ./strace-static-x86_64: Process 4644 attached [pid 4644] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4644] chdir("./18130") = 0 [pid 4644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4644] setpgid(0, 0) = 0 [pid 4644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4644] write(3, "1000", 4) = 4 [pid 4644] close(3) = 0 [pid 4644] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4644] write(1, "executing program\n", 18executing program ) = 18 [pid 4644] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4644] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4644] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4644] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4644] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4644] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4645 attached => {parent_tid=[4645]}, 88) = 4645 [pid 4645] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4645] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4644] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4645] <... futex resumed>) = 0 [pid 4645] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4644] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4645] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4645] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4645] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4644] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4644] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4645] <... futex resumed>) = 0 [pid 4645] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4645] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4645] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4644] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4644] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4645] <... futex resumed>) = 0 [pid 4645] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4644] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4645] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4644] <... futex resumed>) = 0 [pid 4644] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4644] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4645] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4645] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4644] <... futex resumed>) = 0 [pid 4645] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4644] exit_group(0) = ? [pid 4645] <... futex resumed>) = 231 [pid 4645] +++ exited with 0 +++ [pid 4644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18130", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18130/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18130/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18130") = 0 mkdir("./18131", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4646 ./strace-static-x86_64: Process 4646 attached [pid 4646] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4646] chdir("./18131") = 0 [pid 4646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4646] setpgid(0, 0) = 0 [pid 4646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4646] write(3, "1000", 4) = 4 [pid 4646] close(3) = 0 [pid 4646] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4646] write(1, "executing program\n", 18) = 18 [pid 4646] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4646] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4646] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4646] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4646] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4646] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4647 attached [pid 4647] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4646] <... clone3 resumed> => {parent_tid=[4647]}, 88) = 4647 [pid 4646] rt_sigprocmask(SIG_SETMASK, [], [pid 4647] <... set_robust_list resumed>) = 0 [pid 4646] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4647] rt_sigprocmask(SIG_SETMASK, [], [pid 4646] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4647] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4646] <... futex resumed>) = 0 [pid 4647] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4646] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4647] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4647] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4646] <... futex resumed>) = 0 [pid 4646] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4646] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4647] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4647] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4646] <... futex resumed>) = 0 [pid 4646] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4646] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4647] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4647] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4646] <... futex resumed>) = 0 [pid 4646] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4646] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4647] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4647] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4646] <... futex resumed>) = 0 [pid 4646] exit_group(0) = ? [pid 4647] +++ exited with 0 +++ [pid 4646] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18131", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18131/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18131/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18131") = 0 mkdir("./18132", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4649 attached , child_tidptr=0x55558931b690) = 4649 [pid 4649] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4649] chdir("./18132") = 0 [pid 4649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4649] setpgid(0, 0) = 0 [pid 4649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4649] write(3, "1000", 4) = 4 [pid 4649] close(3) = 0 [pid 4649] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4649] write(1, "executing program\n", 18) = 18 [pid 4649] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4649] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4649] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4649] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4649] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4649] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4649] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4650]}, 88) = 4650 ./strace-static-x86_64: Process 4650 attached [pid 4650] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4650] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4650] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4649] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4650] <... futex resumed>) = 0 [pid 4650] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4649] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4650] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4650] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4649] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4650] <... futex resumed>) = 0 [pid 4650] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4649] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4650] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4650] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4649] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4650] <... futex resumed>) = 0 [pid 4650] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4650] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4649] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4649] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4650] <... futex resumed>) = 0 [pid 4649] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4650] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4650] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4649] exit_group(0) = ? [pid 4650] <... futex resumed>) = ? [pid 4650] +++ exited with 0 +++ [pid 4649] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4649, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18132", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18132/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18132/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18132") = 0 mkdir("./18133", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4651 ./strace-static-x86_64: Process 4651 attached [pid 4651] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4651] chdir("./18133") = 0 [pid 4651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4651] setpgid(0, 0) = 0 [pid 4651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4651] write(3, "1000", 4) = 4 [pid 4651] close(3) = 0 [pid 4651] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4651] write(1, "executing program\n", 18) = 18 [pid 4651] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4651] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4651] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4651] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4651] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4651] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4651] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4652 attached => {parent_tid=[4652]}, 88) = 4652 [pid 4651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4651] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4651] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4652] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4652] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4652] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4651] <... futex resumed>) = 0 [pid 4651] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4651] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4652] <... futex resumed>) = 1 [pid 4652] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4652] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4651] <... futex resumed>) = 0 [pid 4651] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4651] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4652] <... futex resumed>) = 1 [pid 4652] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4652] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4651] <... futex resumed>) = 0 [pid 4651] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4651] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4652] <... futex resumed>) = 1 [pid 4652] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4652] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4651] <... futex resumed>) = 0 [pid 4651] exit_group(0) = ? [pid 4652] <... futex resumed>) = ? [pid 4652] +++ exited with 0 +++ [pid 4651] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18133", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18133/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18133/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18133") = 0 mkdir("./18134", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4653 ./strace-static-x86_64: Process 4653 attached [pid 4653] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4653] chdir("./18134") = 0 [pid 4653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4653] setpgid(0, 0) = 0 [pid 4653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4653] write(3, "1000", 4) = 4 [pid 4653] close(3) = 0 [pid 4653] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4653] write(1, "executing program\n", 18executing program ) = 18 [pid 4653] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4653] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4653] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4653] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4653] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4653] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4654 attached => {parent_tid=[4654]}, 88) = 4654 [pid 4654] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4654] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4653] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4654] <... futex resumed>) = 0 [pid 4654] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4654] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4654] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4653] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4654] <... futex resumed>) = 0 [pid 4654] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4654] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4654] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4653] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4654] <... futex resumed>) = 0 [pid 4654] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4654] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4654] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4653] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4654] <... futex resumed>) = 0 [pid 4654] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4654] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4654] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4653] exit_group(0) = ? [pid 4654] <... futex resumed>) = ? [pid 4654] +++ exited with 0 +++ [pid 4653] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18134", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18134/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18134/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18134/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18134") = 0 mkdir("./18135", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4655 ./strace-static-x86_64: Process 4655 attached [pid 4655] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4655] chdir("./18135") = 0 [pid 4655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4655] setpgid(0, 0) = 0 [pid 4655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4655] write(3, "1000", 4) = 4 [pid 4655] close(3) = 0 [pid 4655] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4655] write(1, "executing program\n", 18executing program ) = 18 [pid 4655] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4655] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4655] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4655] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4655] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4655] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4656 attached => {parent_tid=[4656]}, 88) = 4656 [pid 4656] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4656] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4655] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4656] <... futex resumed>) = 0 [pid 4655] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4656] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4656] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4656] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4655] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4655] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4656] <... futex resumed>) = 0 [pid 4656] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4656] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4656] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4655] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4655] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4656] <... futex resumed>) = 0 [pid 4656] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4656] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4656] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4655] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4655] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4656] <... futex resumed>) = 0 [pid 4656] write(-1, "0x0000000000000001", 18 [pid 4655] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4656] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4656] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4656] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4655] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4655] exit_group(0) = ? [pid 4656] <... futex resumed>) = ? [pid 4656] +++ exited with 0 +++ [pid 4655] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18135", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18135/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18135/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18135/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18135") = 0 mkdir("./18136", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4657 ./strace-static-x86_64: Process 4657 attached [pid 4657] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4657] chdir("./18136") = 0 [pid 4657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4657] setpgid(0, 0) = 0 [pid 4657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4657] write(3, "1000", 4) = 4 [pid 4657] close(3) = 0 [pid 4657] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4657] write(1, "executing program\n", 18executing program ) = 18 [pid 4657] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4657] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4657] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4657] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4657] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4658 attached => {parent_tid=[4658]}, 88) = 4658 [pid 4658] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4658] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4657] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4657] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4658] <... futex resumed>) = 0 [pid 4658] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4657] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4658] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4658] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4658] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4657] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4657] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4658] <... futex resumed>) = 0 [pid 4658] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4658] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4658] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4657] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4657] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4658] <... futex resumed>) = 0 [pid 4658] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4657] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4658] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4658] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4657] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4657] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4658] <... futex resumed>) = 0 [pid 4658] write(-1, "0x0000000000000001", 18 [pid 4657] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4658] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4658] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4658] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4657] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4657] exit_group(0) = ? [pid 4658] <... futex resumed>) = ? [pid 4658] +++ exited with 0 +++ [pid 4657] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18136", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18136/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18136/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18136/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18136") = 0 mkdir("./18137", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4659 attached , child_tidptr=0x55558931b690) = 4659 [pid 4659] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4659] chdir("./18137") = 0 [pid 4659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4659] setpgid(0, 0) = 0 [pid 4659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4659] write(3, "1000", 4) = 4 [pid 4659] close(3) = 0 [pid 4659] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4659] write(1, "executing program\n", 18) = 18 [pid 4659] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4659] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4659] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4659] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4659] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4659] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4660 attached => {parent_tid=[4660]}, 88) = 4660 [pid 4659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4659] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4659] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4660] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4660] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4660] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4659] <... futex resumed>) = 0 [pid 4659] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4659] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4660] <... futex resumed>) = 1 [pid 4660] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4660] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4659] <... futex resumed>) = 0 [pid 4659] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4659] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4660] <... futex resumed>) = 1 [pid 4660] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4660] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4659] <... futex resumed>) = 0 [pid 4659] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4659] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4660] <... futex resumed>) = 1 [pid 4660] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4660] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4659] <... futex resumed>) = 0 [pid 4659] exit_group(0) = ? [pid 4660] <... futex resumed>) = ? [pid 4660] +++ exited with 0 +++ [pid 4659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4659, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18137", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18137/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18137/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18137/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18137") = 0 mkdir("./18138", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4661 attached , child_tidptr=0x55558931b690) = 4661 [pid 4661] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4661] chdir("./18138") = 0 [pid 4661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4661] setpgid(0, 0) = 0 [pid 4661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4661] write(3, "1000", 4) = 4 [pid 4661] close(3) = 0 [pid 4661] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4661] write(1, "executing program\n", 18) = 18 [pid 4661] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4661] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4661] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4661] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4661] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4661] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4662 attached => {parent_tid=[4662]}, 88) = 4662 [pid 4662] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4662] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4661] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4662] <... futex resumed>) = 0 [pid 4662] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4662] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4662] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4661] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4662] <... futex resumed>) = 0 [pid 4662] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4662] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4662] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4661] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4662] <... futex resumed>) = 0 [pid 4662] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4662] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4662] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4661] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4662] <... futex resumed>) = 0 [pid 4662] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4662] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4662] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4661] exit_group(0) = ? [pid 4662] <... futex resumed>) = ? [pid 4662] +++ exited with 0 +++ [pid 4661] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4661, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18138", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18138/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18138/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18138/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18138") = 0 mkdir("./18139", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4663 ./strace-static-x86_64: Process 4663 attached [pid 4663] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4663] chdir("./18139") = 0 [pid 4663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4663] setpgid(0, 0) = 0 [pid 4663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4663] write(3, "1000", 4) = 4 [pid 4663] close(3) = 0 [pid 4663] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4663] write(1, "executing program\n", 18) = 18 [pid 4663] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4663] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4663] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4663] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4663] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4663] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4663] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4664 attached [pid 4664] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4663] <... clone3 resumed> => {parent_tid=[4664]}, 88) = 4664 [pid 4664] <... set_robust_list resumed>) = 0 [pid 4664] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4664] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4663] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4663] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4664] <... futex resumed>) = 0 [pid 4664] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4664] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4663] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4663] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4664] <... futex resumed>) = 0 [pid 4663] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4664] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4664] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4663] <... futex resumed>) = 0 [pid 4664] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4663] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4664] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4663] <... futex resumed>) = 0 [pid 4664] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4663] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4664] <... futex resumed>) = 0 [pid 4663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4663] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4663] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4664] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4664] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4664] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4663] <... futex resumed>) = 0 [pid 4663] exit_group(0) = ? [pid 4664] <... futex resumed>) = ? [pid 4664] +++ exited with 0 +++ [pid 4663] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4663, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18139", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18139/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18139/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18139/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18139") = 0 mkdir("./18140", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4665 ./strace-static-x86_64: Process 4665 attached [pid 4665] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4665] chdir("./18140") = 0 [pid 4665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4665] setpgid(0, 0) = 0 [pid 4665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4665] write(3, "1000", 4) = 4 [pid 4665] close(3) = 0 [pid 4665] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4665] write(1, "executing program\n", 18) = 18 [pid 4665] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4665] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4665] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4665] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4665] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4665] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4666 attached [pid 4666] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4666] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4666] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4665] <... clone3 resumed> => {parent_tid=[4666]}, 88) = 4666 [pid 4665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4665] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4666] <... futex resumed>) = 0 [pid 4665] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4666] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4666] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4666] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4665] <... futex resumed>) = 0 [pid 4665] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4666] <... futex resumed>) = 0 [pid 4665] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4666] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4666] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4665] <... futex resumed>) = 0 [pid 4666] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4665] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4665] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4666] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4666] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4665] <... futex resumed>) = 0 [pid 4665] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4665] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4666] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4666] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4665] <... futex resumed>) = 0 [pid 4666] <... futex resumed>) = 1 [pid 4665] exit_group(0) = ? [pid 4666] +++ exited with 0 +++ [pid 4665] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18140", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18140/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18140/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18140/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18140") = 0 mkdir("./18141", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4667 ./strace-static-x86_64: Process 4667 attached [pid 4667] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4667] chdir("./18141") = 0 [pid 4667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4667] setpgid(0, 0) = 0 [pid 4667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4667] write(3, "1000", 4) = 4 [pid 4667] close(3) = 0 [pid 4667] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4667] write(1, "executing program\n", 18executing program ) = 18 [pid 4667] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4667] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4667] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4667] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4667] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4668 attached => {parent_tid=[4668]}, 88) = 4668 [pid 4668] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4667] rt_sigprocmask(SIG_SETMASK, [], [pid 4668] <... set_robust_list resumed>) = 0 [pid 4667] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4668] rt_sigprocmask(SIG_SETMASK, [], [pid 4667] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4668] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4667] <... futex resumed>) = 0 [pid 4667] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4668] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4668] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4667] <... futex resumed>) = 0 [pid 4668] <... futex resumed>) = 1 [pid 4667] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4668] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4667] <... futex resumed>) = 0 [pid 4667] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4668] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4668] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4667] <... futex resumed>) = 0 [pid 4668] <... futex resumed>) = 1 [pid 4667] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4668] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4667] <... futex resumed>) = 0 [pid 4667] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4668] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4668] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4667] <... futex resumed>) = 0 [pid 4668] <... futex resumed>) = 1 [pid 4667] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4668] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4668] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4667] <... futex resumed>) = 0 [pid 4668] <... futex resumed>) = 1 [pid 4667] exit_group(0 [pid 4668] exit_group(0 [pid 4667] <... exit_group resumed>) = ? [pid 4668] +++ exited with 0 +++ [pid 4667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18141", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18141/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18141/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18141") = 0 mkdir("./18142", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4669 ./strace-static-x86_64: Process 4669 attached [pid 4669] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4669] chdir("./18142") = 0 [pid 4669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4669] setpgid(0, 0) = 0 [pid 4669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4669] write(3, "1000", 4) = 4 [pid 4669] close(3) = 0 [pid 4669] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4669] write(1, "executing program\n", 18executing program ) = 18 [pid 4669] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4669] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4669] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4669] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4669] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4670 attached => {parent_tid=[4670]}, 88) = 4670 [pid 4670] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4669] rt_sigprocmask(SIG_SETMASK, [], [pid 4670] <... set_robust_list resumed>) = 0 [pid 4669] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4670] rt_sigprocmask(SIG_SETMASK, [], [pid 4669] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4669] <... futex resumed>) = 0 [pid 4669] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4670] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4670] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4669] <... futex resumed>) = 0 [pid 4670] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4669] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4669] <... futex resumed>) = 0 [pid 4670] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4669] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4670] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4670] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4669] <... futex resumed>) = 0 [pid 4670] <... futex resumed>) = 1 [pid 4669] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4669] <... futex resumed>) = 0 [pid 4669] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4670] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4670] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4669] <... futex resumed>) = 0 [pid 4670] <... futex resumed>) = 1 [pid 4669] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4669] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4670] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4670] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4669] <... futex resumed>) = 0 [pid 4669] exit_group(0 [pid 4670] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4669] <... exit_group resumed>) = ? [pid 4670] <... futex resumed>) = ? [pid 4670] +++ exited with 0 +++ [pid 4669] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18142", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18142/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18142/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18142/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18142") = 0 mkdir("./18143", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4671 ./strace-static-x86_64: Process 4671 attached [pid 4671] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4671] chdir("./18143") = 0 [pid 4671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4671] setpgid(0, 0) = 0 [pid 4671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4671] write(3, "1000", 4) = 4 [pid 4671] close(3) = 0 [pid 4671] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4671] write(1, "executing program\n", 18) = 18 [pid 4671] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4671] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4671] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4671] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4671] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4671] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4672 attached => {parent_tid=[4672]}, 88) = 4672 [pid 4672] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4672] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4671] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4671] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4672] <... futex resumed>) = 0 [pid 4672] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4671] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4672] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4672] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4672] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4671] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4672] <... futex resumed>) = 0 [pid 4671] <... futex resumed>) = 1 [pid 4672] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4671] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4672] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4672] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4671] <... futex resumed>) = 0 [pid 4672] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4671] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4671] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4672] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4672] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4671] <... futex resumed>) = 0 [pid 4671] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4671] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4672] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4672] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4671] <... futex resumed>) = 0 [pid 4672] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4671] exit_group(0) = ? [pid 4672] <... futex resumed>) = ? [pid 4672] +++ exited with 0 +++ [pid 4671] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18143", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18143/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18143/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18143") = 0 mkdir("./18144", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4673 attached , child_tidptr=0x55558931b690) = 4673 [pid 4673] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4673] chdir("./18144") = 0 [pid 4673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4673] setpgid(0, 0) = 0 [pid 4673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4673] write(3, "1000", 4) = 4 [pid 4673] close(3) = 0 [pid 4673] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4673] write(1, "executing program\n", 18executing program ) = 18 [pid 4673] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4673] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4673] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4673] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4673] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4673] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4674 attached [pid 4674] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4673] <... clone3 resumed> => {parent_tid=[4674]}, 88) = 4674 [pid 4674] <... set_robust_list resumed>) = 0 [pid 4674] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4674] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4673] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4673] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4674] <... futex resumed>) = 0 [pid 4674] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4674] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4673] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4673] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4674] <... futex resumed>) = 0 [pid 4674] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4673] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4674] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4673] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4673] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4674] <... futex resumed>) = 0 [pid 4674] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4674] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4673] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4673] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4674] <... futex resumed>) = 0 [pid 4674] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4674] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4673] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4673] exit_group(0) = ? [pid 4674] <... futex resumed>) = ? [pid 4674] +++ exited with 0 +++ [pid 4673] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4673, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18144", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18144/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18144/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18144/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18144") = 0 mkdir("./18145", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4675 ./strace-static-x86_64: Process 4675 attached [pid 4675] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4675] chdir("./18145") = 0 [pid 4675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4675] setpgid(0, 0) = 0 [pid 4675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4675] write(3, "1000", 4) = 4 [pid 4675] close(3) = 0 [pid 4675] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4675] write(1, "executing program\n", 18) = 18 [pid 4675] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4675] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4675] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4675] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4675] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4675] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4675] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4676 attached => {parent_tid=[4676]}, 88) = 4676 [pid 4676] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4676] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4676] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4675] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4675] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4676] <... futex resumed>) = 0 [pid 4676] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4676] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4675] <... futex resumed>) = 0 [pid 4675] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4675] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4676] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4676] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4675] <... futex resumed>) = 0 [pid 4675] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4675] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4676] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4676] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4675] <... futex resumed>) = 0 [pid 4675] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4675] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4676] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4676] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4675] <... futex resumed>) = 0 [pid 4675] exit_group(0) = ? [pid 4676] +++ exited with 0 +++ [pid 4675] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18145", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18145/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18145/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18145/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18145") = 0 mkdir("./18146", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4677 ./strace-static-x86_64: Process 4677 attached [pid 4677] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4677] chdir("./18146") = 0 [pid 4677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4677] setpgid(0, 0) = 0 [pid 4677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4677] write(3, "1000", 4) = 4 [pid 4677] close(3) = 0 [pid 4677] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4677] write(1, "executing program\n", 18executing program ) = 18 [pid 4677] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4677] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4677] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4677] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4677] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4677] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4678 attached [pid 4678] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4678] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4678] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] <... clone3 resumed> => {parent_tid=[4678]}, 88) = 4678 [pid 4677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4677] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4678] <... futex resumed>) = 0 [pid 4677] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4678] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4678] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4678] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4677] <... futex resumed>) = 0 [pid 4678] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4677] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4678] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4678] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4678] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4677] <... futex resumed>) = 0 [pid 4678] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4677] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4678] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4678] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4678] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4677] <... futex resumed>) = 0 [pid 4678] write(-1, "0x0000000000000001", 18 [pid 4677] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4678] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4678] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4677] exit_group(0) = ? [pid 4678] +++ exited with 0 +++ [pid 4677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18146", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18146/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18146/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18146/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18146") = 0 mkdir("./18147", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4679 ./strace-static-x86_64: Process 4679 attached [pid 4679] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4679] chdir("./18147") = 0 [pid 4679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4679] setpgid(0, 0) = 0 [pid 4679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4679] write(3, "1000", 4) = 4 [pid 4679] close(3) = 0 [pid 4679] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4679] write(1, "executing program\n", 18executing program ) = 18 [pid 4679] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4679] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4679] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4679] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4679] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4679] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4680 attached => {parent_tid=[4680]}, 88) = 4680 [pid 4680] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4680] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4679] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4680] <... futex resumed>) = 0 [pid 4680] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4680] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4679] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4679] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4680] <... futex resumed>) = 0 [pid 4680] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4679] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4680] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4679] <... futex resumed>) = 0 [pid 4679] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4679] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4680] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4680] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4679] <... futex resumed>) = 0 [pid 4679] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4679] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4680] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4680] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4679] <... futex resumed>) = 0 [pid 4679] exit_group(0) = ? [pid 4680] +++ exited with 0 +++ [pid 4679] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18147", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18147/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18147/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18147/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18147") = 0 mkdir("./18148", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4681 attached , child_tidptr=0x55558931b690) = 4681 [pid 4681] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4681] chdir("./18148") = 0 [pid 4681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4681] setpgid(0, 0) = 0 [pid 4681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4681] write(3, "1000", 4) = 4 [pid 4681] close(3) = 0 [pid 4681] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4681] write(1, "executing program\n", 18executing program ) = 18 [pid 4681] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4681] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4681] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4681] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4681] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4681] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4682 attached => {parent_tid=[4682]}, 88) = 4682 [pid 4682] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4682] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4682] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4681] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4682] <... futex resumed>) = 0 [pid 4681] <... futex resumed>) = 1 [pid 4682] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4681] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4682] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4682] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4681] <... futex resumed>) = 0 [pid 4681] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4681] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4682] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4682] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4681] <... futex resumed>) = 0 [pid 4681] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4682] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4681] <... futex resumed>) = 0 [pid 4682] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4681] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4682] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4682] <... futex resumed>) = 0 [pid 4681] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4682] write(-1, "0x0000000000000001", 18 [pid 4681] <... futex resumed>) = 0 [pid 4682] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4681] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4682] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4682] <... futex resumed>) = 0 [pid 4682] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4681] exit_group(0) = ? [pid 4682] <... futex resumed>) = ? [pid 4682] +++ exited with 0 +++ [pid 4681] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4681, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18148", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18148/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18148/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18148/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18148") = 0 mkdir("./18149", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4683 ./strace-static-x86_64: Process 4683 attached [pid 4683] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4683] chdir("./18149") = 0 [pid 4683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4683] setpgid(0, 0) = 0 [pid 4683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4683] write(3, "1000", 4) = 4 [pid 4683] close(3) = 0 [pid 4683] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4683] write(1, "executing program\n", 18) = 18 [pid 4683] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4683] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4683] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4683] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4683] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4684 attached => {parent_tid=[4684]}, 88) = 4684 [pid 4684] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4683] rt_sigprocmask(SIG_SETMASK, [], [pid 4684] <... set_robust_list resumed>) = 0 [pid 4684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4684] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4683] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4683] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4684] <... futex resumed>) = 0 [pid 4684] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4683] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4684] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4684] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4684] <... futex resumed>) = 0 [pid 4684] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4683] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4684] <... futex resumed>) = 0 [pid 4684] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4683] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4684] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4683] <... futex resumed>) = 0 [pid 4684] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4683] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4684] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4684] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4683] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4684] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4684] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4683] <... futex resumed>) = 0 [pid 4684] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4683] exit_group(0) = ? [pid 4684] <... futex resumed>) = ? [pid 4684] +++ exited with 0 +++ [pid 4683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18149", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18149/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18149/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18149/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18149") = 0 mkdir("./18150", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4685 ./strace-static-x86_64: Process 4685 attached [pid 4685] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4685] chdir("./18150") = 0 [pid 4685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4685] setpgid(0, 0) = 0 [pid 4685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4685] write(3, "1000", 4) = 4 [pid 4685] close(3) = 0 [pid 4685] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4685] write(1, "executing program\n", 18executing program ) = 18 [pid 4685] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4685] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4685] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4685] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4685] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4685] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4685] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4686 attached => {parent_tid=[4686]}, 88) = 4686 [pid 4686] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4686] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4686] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4685] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4685] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4686] <... futex resumed>) = 0 [pid 4686] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4686] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4685] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4685] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4686] <... futex resumed>) = 0 [pid 4686] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4686] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4685] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4685] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4686] <... futex resumed>) = 0 [pid 4685] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4686] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4686] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4685] <... futex resumed>) = 0 [pid 4685] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4685] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4686] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4686] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4686] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4685] <... futex resumed>) = 0 [pid 4685] exit_group(0) = ? [pid 4686] <... futex resumed>) = ? [pid 4686] +++ exited with 0 +++ [pid 4685] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4685, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18150", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18150/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18150/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18150/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18150") = 0 mkdir("./18151", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4687 ./strace-static-x86_64: Process 4687 attached [pid 4687] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4687] chdir("./18151") = 0 [pid 4687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4687] setpgid(0, 0) = 0 [pid 4687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4687] write(3, "1000", 4) = 4 [pid 4687] close(3) = 0 [pid 4687] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4687] write(1, "executing program\n", 18executing program ) = 18 [pid 4687] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4687] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4687] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4687] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4687] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4687] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4687] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4688 attached => {parent_tid=[4688]}, 88) = 4688 [pid 4688] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4688] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4688] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4687] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4688] <... futex resumed>) = 0 [pid 4688] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4688] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4688] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4687] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4687] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4688] <... futex resumed>) = 0 [pid 4688] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4688] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4688] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4687] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4687] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4688] <... futex resumed>) = 0 [pid 4687] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4688] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4688] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4687] <... futex resumed>) = 0 [pid 4688] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4687] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4688] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4687] <... futex resumed>) = 0 [pid 4687] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4688] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4688] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4687] <... futex resumed>) = 0 [pid 4688] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4687] exit_group(0) = ? [pid 4688] <... futex resumed>) = ? [pid 4688] +++ exited with 0 +++ [pid 4687] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18151", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18151/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18151/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18151/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18151") = 0 mkdir("./18152", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4689 attached , child_tidptr=0x55558931b690) = 4689 [pid 4689] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4689] chdir("./18152") = 0 [pid 4689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4689] setpgid(0, 0) = 0 [pid 4689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4689] write(3, "1000", 4) = 4 [pid 4689] close(3) = 0 [pid 4689] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4689] write(1, "executing program\n", 18executing program ) = 18 [pid 4689] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4689] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4689] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4689] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4689] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4690 attached => {parent_tid=[4690]}, 88) = 4690 [pid 4690] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4689] rt_sigprocmask(SIG_SETMASK, [], [pid 4690] <... set_robust_list resumed>) = 0 [pid 4689] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4690] rt_sigprocmask(SIG_SETMASK, [], [pid 4689] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4690] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4689] <... futex resumed>) = 0 [pid 4689] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4690] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4689] <... futex resumed>) = 0 [pid 4690] <... futex resumed>) = 1 [pid 4689] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4690] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4689] <... futex resumed>) = 0 [pid 4689] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] <... futex resumed>) = 1 [pid 4690] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4690] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4689] <... futex resumed>) = 0 [pid 4689] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4690] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4689] <... futex resumed>) = 0 [pid 4689] exit_group(0) = ? [pid 4690] +++ exited with 0 +++ [pid 4689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18152", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18152/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18152/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18152/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18152") = 0 mkdir("./18153", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4691 ./strace-static-x86_64: Process 4691 attached [pid 4691] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4691] chdir("./18153") = 0 [pid 4691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4691] setpgid(0, 0) = 0 [pid 4691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4691] write(3, "1000", 4) = 4 [pid 4691] close(3) = 0 [pid 4691] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4691] write(1, "executing program\n", 18executing program ) = 18 [pid 4691] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4691] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4691] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4691] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4691] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4691] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4692 attached => {parent_tid=[4692]}, 88) = 4692 [pid 4692] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4692] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4691] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4692] <... futex resumed>) = 0 [pid 4692] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4692] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4691] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4691] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4692] <... futex resumed>) = 0 [pid 4692] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4692] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4691] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4692] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4691] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4691] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4692] <... futex resumed>) = 0 [pid 4692] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4692] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4691] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4691] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4692] <... futex resumed>) = 0 [pid 4691] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4692] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4692] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4692] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4691] <... futex resumed>) = 0 [pid 4691] exit_group(0) = ? [pid 4692] <... futex resumed>) = ? [pid 4692] +++ exited with 0 +++ [pid 4691] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18153", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18153/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18153/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18153") = 0 mkdir("./18154", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4693 attached , child_tidptr=0x55558931b690) = 4693 [pid 4693] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4693] chdir("./18154") = 0 [pid 4693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4693] setpgid(0, 0) = 0 [pid 4693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4693] write(3, "1000", 4) = 4 [pid 4693] close(3) = 0 [pid 4693] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4693] write(1, "executing program\n", 18) = 18 [pid 4693] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4693] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4693] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4693] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4693] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4693] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4693] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4694 attached [pid 4694] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4693] <... clone3 resumed> => {parent_tid=[4694]}, 88) = 4694 [pid 4693] rt_sigprocmask(SIG_SETMASK, [], [pid 4694] rt_sigprocmask(SIG_SETMASK, [], [pid 4693] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4694] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4693] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4694] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4693] <... futex resumed>) = 0 [pid 4693] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4694] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4694] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4693] <... futex resumed>) = 0 [pid 4693] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4693] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4694] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4694] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4693] <... futex resumed>) = 0 [pid 4693] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4693] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4694] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4694] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4693] <... futex resumed>) = 0 [pid 4693] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4693] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4694] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4694] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4693] <... futex resumed>) = 0 [pid 4693] exit_group(0) = ? [pid 4694] +++ exited with 0 +++ [pid 4693] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18154", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18154/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18154/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18154/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18154") = 0 mkdir("./18155", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4695 ./strace-static-x86_64: Process 4695 attached [pid 4695] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4695] chdir("./18155") = 0 [pid 4695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4695] setpgid(0, 0) = 0 [pid 4695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4695] write(3, "1000", 4) = 4 [pid 4695] close(3) = 0 [pid 4695] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4695] write(1, "executing program\n", 18) = 18 [pid 4695] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4695] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4695] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4695] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4695] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4695] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4696 attached => {parent_tid=[4696]}, 88) = 4696 [pid 4695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4695] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4695] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4696] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4696] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4696] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4695] <... futex resumed>) = 0 [pid 4695] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4695] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4696] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4696] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4695] <... futex resumed>) = 0 [pid 4695] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4695] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4696] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4696] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4695] <... futex resumed>) = 0 [pid 4695] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4695] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4696] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4696] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4695] <... futex resumed>) = 0 [pid 4695] exit_group(0) = ? [pid 4696] +++ exited with 0 +++ [pid 4695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18155", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18155/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18155/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18155") = 0 mkdir("./18156", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4697 ./strace-static-x86_64: Process 4697 attached [pid 4697] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4697] chdir("./18156") = 0 [pid 4697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4697] setpgid(0, 0) = 0 [pid 4697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4697] write(3, "1000", 4) = 4 [pid 4697] close(3) = 0 [pid 4697] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4697] write(1, "executing program\n", 18executing program ) = 18 [pid 4697] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4697] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4697] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4697] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4697] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4697] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4698 attached => {parent_tid=[4698]}, 88) = 4698 [pid 4698] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4698] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4698] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4697] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4697] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4698] <... futex resumed>) = 0 [pid 4698] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4697] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4698] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4698] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4698] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4697] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4697] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4698] <... futex resumed>) = 0 [pid 4697] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4698] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4698] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4697] <... futex resumed>) = 0 [pid 4697] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4697] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4698] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4698] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4697] <... futex resumed>) = 0 [pid 4697] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4697] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4698] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4698] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4697] <... futex resumed>) = 0 [pid 4697] exit_group(0) = ? [pid 4698] +++ exited with 0 +++ [pid 4697] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18156", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18156/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18156/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18156") = 0 mkdir("./18157", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4699 ./strace-static-x86_64: Process 4699 attached [pid 4699] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4699] chdir("./18157") = 0 [pid 4699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4699] setpgid(0, 0) = 0 [pid 4699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4699] write(3, "1000", 4) = 4 [pid 4699] close(3) = 0 [pid 4699] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4699] write(1, "executing program\n", 18) = 18 [pid 4699] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4699] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4699] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4699] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4699] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4699] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4699] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4700]}, 88) = 4700 [pid 4699] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4699] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4699] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4700 attached [pid 4700] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4700] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4700] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4699] <... futex resumed>) = 0 [pid 4699] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4699] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4700] <... futex resumed>) = 1 [pid 4700] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4700] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4699] <... futex resumed>) = 0 [pid 4699] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4699] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4700] <... futex resumed>) = 1 [pid 4700] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4700] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4699] <... futex resumed>) = 0 [pid 4699] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4699] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4700] <... futex resumed>) = 1 [pid 4700] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4700] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4699] <... futex resumed>) = 0 [pid 4699] exit_group(0) = ? [pid 4700] +++ exited with 0 +++ [pid 4699] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18157", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18157/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18157/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18157") = 0 mkdir("./18158", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4701 ./strace-static-x86_64: Process 4701 attached [pid 4701] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4701] chdir("./18158") = 0 [pid 4701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4701] setpgid(0, 0) = 0 [pid 4701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4701] write(3, "1000", 4executing program ) = 4 [pid 4701] close(3) = 0 [pid 4701] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4701] write(1, "executing program\n", 18) = 18 [pid 4701] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4701] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4701] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4701] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4701] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4701] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4701] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4702 attached => {parent_tid=[4702]}, 88) = 4702 [pid 4701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4701] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4701] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4702] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4702] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4702] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4702] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4701] <... futex resumed>) = 0 [pid 4701] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4701] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4702] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4702] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4701] <... futex resumed>) = 0 [pid 4701] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4701] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4702] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4702] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4701] <... futex resumed>) = 0 [pid 4701] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4701] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4702] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4702] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4701] <... futex resumed>) = 0 [pid 4701] exit_group(0) = ? [pid 4702] +++ exited with 0 +++ [pid 4701] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18158", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18158/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18158/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18158") = 0 mkdir("./18159", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4703 ./strace-static-x86_64: Process 4703 attached [pid 4703] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4703] chdir("./18159") = 0 [pid 4703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4703] setpgid(0, 0) = 0 [pid 4703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4703] write(3, "1000", 4) = 4 [pid 4703] close(3) = 0 [pid 4703] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4703] write(1, "executing program\n", 18executing program ) = 18 [pid 4703] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4703] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4703] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4703] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4703] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4704 attached [pid 4704] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4704] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4703] <... clone3 resumed> => {parent_tid=[4704]}, 88) = 4704 [pid 4703] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4703] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4704] <... futex resumed>) = 0 [pid 4704] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4704] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4704] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4703] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4703] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4703] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4704] <... futex resumed>) = 0 [pid 4704] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4704] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4703] <... futex resumed>) = 0 [pid 4703] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4704] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4704] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4703] <... futex resumed>) = 0 [pid 4703] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4704] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4704] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4703] <... futex resumed>) = 0 [pid 4704] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4703] exit_group(0) = ? [pid 4704] <... futex resumed>) = ? [pid 4704] +++ exited with 0 +++ [pid 4703] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4703, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18159", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18159/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18159/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18159") = 0 mkdir("./18160", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4705 ./strace-static-x86_64: Process 4705 attached [pid 4705] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4705] chdir("./18160") = 0 [pid 4705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4705] setpgid(0, 0) = 0 [pid 4705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4705] write(3, "1000", 4) = 4 [pid 4705] close(3) = 0 [pid 4705] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4705] write(1, "executing program\n", 18executing program ) = 18 [pid 4705] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4705] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4705] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4705] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4705] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4705] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4705] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4706]}, 88) = 4706 [pid 4705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4705] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4705] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4706 attached [pid 4706] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4706] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4706] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4706] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4705] <... futex resumed>) = 0 [pid 4705] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4705] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4706] <... futex resumed>) = 1 [pid 4706] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4706] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4705] <... futex resumed>) = 0 [pid 4705] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4705] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4706] <... futex resumed>) = 1 [pid 4706] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4706] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4705] <... futex resumed>) = 0 [pid 4705] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4705] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4706] <... futex resumed>) = 1 [pid 4706] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4706] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4705] <... futex resumed>) = 0 [pid 4705] exit_group(0) = ? [pid 4706] <... futex resumed>) = ? [pid 4706] +++ exited with 0 +++ [pid 4705] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18160", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18160/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18160/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18160") = 0 mkdir("./18161", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4707 attached , child_tidptr=0x55558931b690) = 4707 [pid 4707] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4707] chdir("./18161") = 0 [pid 4707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4707] setpgid(0, 0) = 0 [pid 4707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4707] write(3, "1000", 4) = 4 [pid 4707] close(3) = 0 [pid 4707] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4707] write(1, "executing program\n", 18executing program ) = 18 [pid 4707] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4707] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4707] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4707] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4707] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4707] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4707] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4708 attached => {parent_tid=[4708]}, 88) = 4708 [pid 4708] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4708] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4708] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4707] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4707] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4708] <... futex resumed>) = 0 [pid 4707] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4708] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4708] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4708] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4707] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4707] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4708] <... futex resumed>) = 0 [pid 4708] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4707] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4708] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4708] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4708] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4707] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4707] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4708] <... futex resumed>) = 0 [pid 4708] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4708] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4708] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4707] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4707] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4708] <... futex resumed>) = 0 [pid 4708] write(-1, "0x0000000000000001", 18 [pid 4707] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4708] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4708] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4708] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4707] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4707] exit_group(0) = ? [pid 4708] <... futex resumed>) = ? [pid 4708] +++ exited with 0 +++ [pid 4707] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18161", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18161/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18161/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18161") = 0 mkdir("./18162", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4709 ./strace-static-x86_64: Process 4709 attached [pid 4709] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4709] chdir("./18162") = 0 [pid 4709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4709] setpgid(0, 0) = 0 [pid 4709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4709] write(3, "1000", 4) = 4 [pid 4709] close(3) = 0 [pid 4709] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4709] write(1, "executing program\n", 18) = 18 [pid 4709] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4709] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4709] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4709] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4709] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4709] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4709] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4710]}, 88) = 4710 [pid 4709] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4709] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4709] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4710 attached [pid 4710] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4710] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4710] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4710] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4709] <... futex resumed>) = 0 [pid 4709] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4709] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4710] <... futex resumed>) = 1 [pid 4710] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4710] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4709] <... futex resumed>) = 0 [pid 4710] <... futex resumed>) = 1 [pid 4709] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4709] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4710] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4710] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4709] <... futex resumed>) = 0 [pid 4709] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4709] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4710] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4710] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4709] <... futex resumed>) = 0 [pid 4709] exit_group(0) = ? [pid 4710] +++ exited with 0 +++ [pid 4709] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18162", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18162/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18162/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18162") = 0 mkdir("./18163", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4711 attached , child_tidptr=0x55558931b690) = 4711 [pid 4711] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4711] chdir("./18163") = 0 [pid 4711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4711] setpgid(0, 0) = 0 [pid 4711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4711] write(3, "1000", 4) = 4 [pid 4711] close(3) = 0 [pid 4711] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4711] write(1, "executing program\n", 18) = 18 [pid 4711] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4711] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4711] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4711] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4711] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4711] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4711] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4712 attached => {parent_tid=[4712]}, 88) = 4712 [pid 4712] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4711] rt_sigprocmask(SIG_SETMASK, [], [pid 4712] <... set_robust_list resumed>) = 0 [pid 4711] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4712] rt_sigprocmask(SIG_SETMASK, [], [pid 4711] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4712] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4711] <... futex resumed>) = 0 [pid 4712] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4711] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4712] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4712] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4711] <... futex resumed>) = 0 [pid 4711] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4711] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4712] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4712] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4711] <... futex resumed>) = 0 [pid 4711] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4711] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4712] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4712] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4711] <... futex resumed>) = 0 [pid 4711] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4711] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4712] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4712] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4711] <... futex resumed>) = 0 [pid 4711] exit_group(0) = ? [pid 4712] +++ exited with 0 +++ [pid 4711] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18163", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18163/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18163/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18163") = 0 mkdir("./18164", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4713 ./strace-static-x86_64: Process 4713 attached [pid 4713] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4713] chdir("./18164") = 0 [pid 4713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4713] setpgid(0, 0) = 0 [pid 4713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4713] write(3, "1000", 4) = 4 [pid 4713] close(3) = 0 [pid 4713] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4713] write(1, "executing program\n", 18executing program ) = 18 [pid 4713] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4713] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4713] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4713] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4713] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4713] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4713] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4714 attached => {parent_tid=[4714]}, 88) = 4714 [pid 4714] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4714] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4714] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4713] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4713] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4714] <... futex resumed>) = 0 [pid 4713] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4714] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4714] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4713] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4714] <... futex resumed>) = 0 [pid 4714] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4713] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4714] <... futex resumed>) = 0 [pid 4714] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4713] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4714] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4714] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4714] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4713] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4713] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4714] <... futex resumed>) = 0 [pid 4714] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4714] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4714] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4713] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4713] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4714] <... futex resumed>) = 0 [pid 4714] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4714] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4714] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4713] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4713] exit_group(0) = ? [pid 4714] <... futex resumed>) = ? [pid 4714] +++ exited with 0 +++ [pid 4713] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18164", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18164/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18164/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18164") = 0 mkdir("./18165", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4715 attached , child_tidptr=0x55558931b690) = 4715 [pid 4715] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4715] chdir("./18165") = 0 [pid 4715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4715] setpgid(0, 0) = 0 [pid 4715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4715] write(3, "1000", 4) = 4 [pid 4715] close(3) = 0 [pid 4715] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4715] write(1, "executing program\n", 18executing program ) = 18 [pid 4715] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4715] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4715] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4715] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4715] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4715] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4715] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4716 attached => {parent_tid=[4716]}, 88) = 4716 [pid 4716] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4715] rt_sigprocmask(SIG_SETMASK, [], [pid 4716] <... set_robust_list resumed>) = 0 [pid 4716] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4716] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4715] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4715] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4716] <... futex resumed>) = 0 [pid 4715] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4716] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4716] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4715] <... futex resumed>) = 0 [pid 4716] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4715] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4715] <... futex resumed>) = 0 [pid 4716] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4715] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4716] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4716] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4715] <... futex resumed>) = 0 [pid 4716] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4715] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4716] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4715] <... futex resumed>) = 0 [pid 4716] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4715] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4716] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4716] <... futex resumed>) = 0 [pid 4715] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4716] write(-1, "0x0000000000000001", 18 [pid 4715] <... futex resumed>) = 0 [pid 4716] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4715] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4716] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4716] <... futex resumed>) = 0 [pid 4715] exit_group(0 [pid 4716] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4715] <... exit_group resumed>) = ? [pid 4716] <... futex resumed>) = -1 (errno 18446744073709551414) [pid 4716] +++ exited with 0 +++ [pid 4715] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18165", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18165/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18165/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18165/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18165") = 0 mkdir("./18166", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4717 attached , child_tidptr=0x55558931b690) = 4717 [pid 4717] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4717] chdir("./18166") = 0 [pid 4717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4717] setpgid(0, 0) = 0 [pid 4717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4717] write(3, "1000", 4) = 4 [pid 4717] close(3) = 0 [pid 4717] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4717] write(1, "executing program\n", 18executing program ) = 18 [pid 4717] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4717] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4717] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4717] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4717] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4717] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4717] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4718 attached => {parent_tid=[4718]}, 88) = 4718 [pid 4717] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4717] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4717] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4718] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4718] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4718] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4718] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4717] <... futex resumed>) = 0 [pid 4717] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4717] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4718] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4718] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4717] <... futex resumed>) = 0 [pid 4717] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4717] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4718] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4718] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4717] <... futex resumed>) = 0 [pid 4717] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4717] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4718] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4718] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4717] <... futex resumed>) = 0 [pid 4717] exit_group(0) = ? [pid 4718] +++ exited with 0 +++ [pid 4717] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4717, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18166", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18166/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18166/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18166") = 0 mkdir("./18167", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4719 ./strace-static-x86_64: Process 4719 attached [pid 4719] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4719] chdir("./18167") = 0 [pid 4719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4719] setpgid(0, 0) = 0 [pid 4719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4719] write(3, "1000", 4) = 4 [pid 4719] close(3) = 0 [pid 4719] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4719] write(1, "executing program\n", 18executing program ) = 18 [pid 4719] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4719] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4719] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4719] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4719] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4719] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4719] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4720 attached => {parent_tid=[4720]}, 88) = 4720 [pid 4720] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4720] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4720] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4719] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4719] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4720] <... futex resumed>) = 0 [pid 4719] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4720] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4720] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4720] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4719] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4720] <... futex resumed>) = 0 [pid 4720] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4720] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4720] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4719] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4719] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4720] <... futex resumed>) = 0 [pid 4720] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4719] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4720] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4720] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4720] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4719] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4720] <... futex resumed>) = 0 [pid 4720] write(-1, "0x0000000000000001", 18 [pid 4719] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4720] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4720] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4720] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4719] exit_group(0) = ? [pid 4720] <... futex resumed>) = ? [pid 4720] +++ exited with 0 +++ [pid 4719] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18167", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18167/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18167/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18167") = 0 mkdir("./18168", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4721 ./strace-static-x86_64: Process 4721 attached [pid 4721] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4721] chdir("./18168") = 0 [pid 4721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4721] setpgid(0, 0) = 0 [pid 4721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4721] write(3, "1000", 4) = 4 [pid 4721] close(3) = 0 [pid 4721] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4721] write(1, "executing program\n", 18executing program ) = 18 [pid 4721] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4721] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4721] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4721] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4721] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4721] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4722 attached => {parent_tid=[4722]}, 88) = 4722 [pid 4722] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4722] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4722] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4721] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4721] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4722] <... futex resumed>) = 0 [pid 4722] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4722] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4722] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4721] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4721] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4722] <... futex resumed>) = 0 [pid 4722] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4722] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4722] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4721] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4721] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4722] <... futex resumed>) = 0 [pid 4722] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4722] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4722] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4721] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4721] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4722] <... futex resumed>) = 0 [pid 4721] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4722] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4722] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4721] <... futex resumed>) = 0 [pid 4722] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4721] exit_group(0) = ? [pid 4722] <... futex resumed>) = ? [pid 4722] +++ exited with 0 +++ [pid 4721] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18168", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18168/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18168/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18168") = 0 mkdir("./18169", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4723 ./strace-static-x86_64: Process 4723 attached [pid 4723] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4723] chdir("./18169") = 0 [pid 4723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4723] setpgid(0, 0) = 0 [pid 4723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4723] write(3, "1000", 4) = 4 [pid 4723] close(3) = 0 [pid 4723] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4723] write(1, "executing program\n", 18executing program ) = 18 [pid 4723] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4723] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4723] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4723] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4723] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4723] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4723] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4724 attached => {parent_tid=[4724]}, 88) = 4724 [pid 4723] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4723] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4723] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4724] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4724] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4724] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4724] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4723] <... futex resumed>) = 0 [pid 4723] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4723] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4724] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4724] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4723] <... futex resumed>) = 0 [pid 4723] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4723] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4724] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4724] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4723] <... futex resumed>) = 0 [pid 4723] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4723] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4724] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4724] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4723] <... futex resumed>) = 0 [pid 4723] exit_group(0) = ? [pid 4724] +++ exited with 0 +++ [pid 4723] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18169", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18169/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18169/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18169") = 0 mkdir("./18170", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4725 ./strace-static-x86_64: Process 4725 attached [pid 4725] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4725] chdir("./18170") = 0 [pid 4725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4725] setpgid(0, 0) = 0 [pid 4725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4725] write(3, "1000", 4) = 4 [pid 4725] close(3) = 0 [pid 4725] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4725] write(1, "executing program\n", 18executing program ) = 18 [pid 4725] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4725] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4725] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4725] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4725] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4725] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4726 attached => {parent_tid=[4726]}, 88) = 4726 [pid 4726] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4726] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4726] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4725] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4725] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4726] <... futex resumed>) = 0 [pid 4726] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4726] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4726] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4725] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4725] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4726] <... futex resumed>) = 0 [pid 4726] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4726] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4726] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4725] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4725] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4726] <... futex resumed>) = 0 [pid 4726] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4726] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4726] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4725] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4725] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4726] <... futex resumed>) = 0 [pid 4726] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4726] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4726] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4725] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4725] exit_group(0) = ? [pid 4726] <... futex resumed>) = ? [pid 4726] +++ exited with 0 +++ [pid 4725] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18170", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18170/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18170/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18170") = 0 mkdir("./18171", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4727 ./strace-static-x86_64: Process 4727 attached [pid 4727] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4727] chdir("./18171") = 0 [pid 4727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4727] setpgid(0, 0) = 0 [pid 4727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4727] write(3, "1000", 4) = 4 [pid 4727] close(3) = 0 [pid 4727] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4727] write(1, "executing program\n", 18) = 18 [pid 4727] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4727] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4727] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4727] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4727] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4727] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4727] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4728]}, 88) = 4728 [pid 4727] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4727] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4727] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4728 attached [pid 4728] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4728] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4728] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4728] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4727] <... futex resumed>) = 0 [pid 4727] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4727] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4728] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4728] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4727] <... futex resumed>) = 0 [pid 4727] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4727] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4728] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4728] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4727] <... futex resumed>) = 0 [pid 4727] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4727] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4728] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4728] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4727] <... futex resumed>) = 0 [pid 4727] exit_group(0) = ? [pid 4728] +++ exited with 0 +++ [pid 4727] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18171", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18171/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18171/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18171/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18171") = 0 mkdir("./18172", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4729 ./strace-static-x86_64: Process 4729 attached [pid 4729] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4729] chdir("./18172") = 0 [pid 4729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4729] setpgid(0, 0) = 0 [pid 4729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4729] write(3, "1000", 4) = 4 [pid 4729] close(3) = 0 [pid 4729] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4729] write(1, "executing program\n", 18) = 18 [pid 4729] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4729] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4729] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4729] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4729] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4729] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4729] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4730 attached => {parent_tid=[4730]}, 88) = 4730 [pid 4730] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4730] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4730] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4729] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4730] <... futex resumed>) = 0 [pid 4730] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4730] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4730] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4729] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4729] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4730] <... futex resumed>) = 0 [pid 4730] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4730] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4730] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4729] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4729] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4730] <... futex resumed>) = 0 [pid 4730] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4730] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4730] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4729] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4729] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4730] <... futex resumed>) = 0 [pid 4730] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4730] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4730] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4729] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4729] exit_group(0) = ? [pid 4730] <... futex resumed>) = ? [pid 4730] +++ exited with 0 +++ [pid 4729] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18172", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18172/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18172/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18172") = 0 mkdir("./18173", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4731 ./strace-static-x86_64: Process 4731 attached [pid 4731] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4731] chdir("./18173") = 0 [pid 4731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4731] setpgid(0, 0) = 0 [pid 4731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4731] write(3, "1000", 4) = 4 [pid 4731] close(3) = 0 [pid 4731] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4731] write(1, "executing program\n", 18) = 18 [pid 4731] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4731] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4731] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4731] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4731] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4731] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4732 attached => {parent_tid=[4732]}, 88) = 4732 [pid 4732] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4731] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4732] <... set_robust_list resumed>) = 0 [pid 4732] rt_sigprocmask(SIG_SETMASK, [], [pid 4731] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4732] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4731] <... futex resumed>) = 0 [pid 4732] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4731] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4732] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4732] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4731] <... futex resumed>) = 0 [pid 4731] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4731] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4732] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4732] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4731] <... futex resumed>) = 0 [pid 4731] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4731] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4732] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4732] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4731] <... futex resumed>) = 0 [pid 4731] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4731] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4732] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4732] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4731] <... futex resumed>) = 0 [pid 4731] exit_group(0) = ? [pid 4732] +++ exited with 0 +++ [pid 4731] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18173", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18173/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18173/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18173") = 0 mkdir("./18174", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4733 ./strace-static-x86_64: Process 4733 attached [pid 4733] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4733] chdir("./18174") = 0 [pid 4733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4733] setpgid(0, 0) = 0 [pid 4733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4733] write(3, "1000", 4) = 4 [pid 4733] close(3) = 0 [pid 4733] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4733] write(1, "executing program\n", 18) = 18 [pid 4733] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4733] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4733] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4733] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4733] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4733] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4733] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4734 attached => {parent_tid=[4734]}, 88) = 4734 [pid 4733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4733] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4733] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4734] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4734] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4734] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4734] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4733] <... futex resumed>) = 0 [pid 4733] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4733] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4734] <... futex resumed>) = 1 [pid 4734] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4734] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4733] <... futex resumed>) = 0 [pid 4733] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4733] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4734] <... futex resumed>) = 1 [pid 4734] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4734] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4733] <... futex resumed>) = 0 [pid 4733] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4733] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4734] <... futex resumed>) = 1 [pid 4734] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4734] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4733] <... futex resumed>) = 0 [pid 4733] exit_group(0) = ? [pid 4734] +++ exited with 0 +++ [pid 4733] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18174", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18174/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18174/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18174/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18174") = 0 mkdir("./18175", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4735 ./strace-static-x86_64: Process 4735 attached [pid 4735] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4735] chdir("./18175") = 0 [pid 4735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4735] setpgid(0, 0) = 0 [pid 4735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4735] write(3, "1000", 4) = 4 [pid 4735] close(3) = 0 [pid 4735] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4735] write(1, "executing program\n", 18) = 18 [pid 4735] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4735] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4735] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4735] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4735] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4735] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4735] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4736 attached => {parent_tid=[4736]}, 88) = 4736 [pid 4736] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4736] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4736] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4735] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4735] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4736] <... futex resumed>) = 0 [pid 4735] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4736] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4736] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4736] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4735] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4735] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4736] <... futex resumed>) = 0 [pid 4736] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4735] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4736] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4736] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4735] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4735] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4736] <... futex resumed>) = 0 [pid 4736] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4735] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4736] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4735] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4736] <... futex resumed>) = 0 [pid 4736] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4735] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4736] <... futex resumed>) = 0 [pid 4735] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4736] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4736] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4736] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4735] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4735] exit_group(0) = ? [pid 4736] <... futex resumed>) = ? [pid 4736] +++ exited with 0 +++ [pid 4735] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4735, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18175", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18175/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18175/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18175") = 0 mkdir("./18176", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4737 ./strace-static-x86_64: Process 4737 attached [pid 4737] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4737] chdir("./18176") = 0 [pid 4737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4737] setpgid(0, 0) = 0 [pid 4737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4737] write(3, "1000", 4) = 4 [pid 4737] close(3) = 0 [pid 4737] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4737] write(1, "executing program\n", 18executing program ) = 18 [pid 4737] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4737] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4737] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4737] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4737] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4737] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4737] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4738 attached => {parent_tid=[4738]}, 88) = 4738 [pid 4738] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4738] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4738] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4737] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4737] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4738] <... futex resumed>) = 0 [pid 4738] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4738] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4738] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4737] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4737] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4738] <... futex resumed>) = 0 [pid 4738] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4738] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4738] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4737] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4737] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4738] <... futex resumed>) = 0 [pid 4738] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4737] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4738] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4738] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4738] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4737] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4738] <... futex resumed>) = 0 [pid 4738] write(-1, "0x0000000000000001", 18 [pid 4737] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4738] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4738] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4738] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4737] exit_group(0) = ? [pid 4738] <... futex resumed>) = ? [pid 4738] +++ exited with 0 +++ [pid 4737] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18176", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18176/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18176/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18176") = 0 mkdir("./18177", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4739 attached , child_tidptr=0x55558931b690) = 4739 [pid 4739] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4739] chdir("./18177") = 0 [pid 4739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4739] setpgid(0, 0) = 0 [pid 4739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4739] write(3, "1000", 4) = 4 [pid 4739] close(3) = 0 [pid 4739] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4739] write(1, "executing program\n", 18) = 18 [pid 4739] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4739] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4739] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4739] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4739] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4739] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4739] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4740 attached => {parent_tid=[4740]}, 88) = 4740 [pid 4739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4739] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4739] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4740] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4740] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4740] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4739] <... futex resumed>) = 0 [pid 4739] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4739] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4740] <... futex resumed>) = 1 [pid 4740] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4740] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4739] <... futex resumed>) = 0 [pid 4739] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4739] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4740] <... futex resumed>) = 1 [pid 4740] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4740] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4739] <... futex resumed>) = 0 [pid 4739] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4739] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4740] <... futex resumed>) = 1 [pid 4740] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4740] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4739] <... futex resumed>) = 0 [pid 4739] exit_group(0) = ? [pid 4740] <... futex resumed>) = ? [pid 4740] +++ exited with 0 +++ [pid 4739] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4739, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18177", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18177/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18177/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18177/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18177") = 0 mkdir("./18178", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4741 ./strace-static-x86_64: Process 4741 attached [pid 4741] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4741] chdir("./18178") = 0 [pid 4741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4741] setpgid(0, 0) = 0 [pid 4741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4741] write(3, "1000", 4) = 4 [pid 4741] close(3) = 0 [pid 4741] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4741] write(1, "executing program\n", 18executing program ) = 18 [pid 4741] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4741] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4741] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4741] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4741] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4741] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4741] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4742 attached [pid 4742] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4742] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4741] <... clone3 resumed> => {parent_tid=[4742]}, 88) = 4742 [pid 4741] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4741] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4742] <... futex resumed>) = 0 [pid 4742] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4742] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4742] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4741] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4741] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4742] <... futex resumed>) = 0 [pid 4742] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4742] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4742] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4741] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4741] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4742] <... futex resumed>) = 0 [pid 4742] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4742] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4742] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4741] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4741] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4742] <... futex resumed>) = 0 [pid 4742] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4742] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4742] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4741] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4741] exit_group(0) = ? [pid 4742] <... futex resumed>) = ? [pid 4742] +++ exited with 0 +++ [pid 4741] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18178", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18178/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18178/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18178") = 0 mkdir("./18179", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4743 ./strace-static-x86_64: Process 4743 attached [pid 4743] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4743] chdir("./18179") = 0 [pid 4743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4743] setpgid(0, 0) = 0 [pid 4743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4743] write(3, "1000", 4) = 4 [pid 4743] close(3) = 0 [pid 4743] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4743] write(1, "executing program\n", 18executing program ) = 18 [pid 4743] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4743] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4743] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4743] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4743] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4743] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4743] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4744]}, 88) = 4744 ./strace-static-x86_64: Process 4744 attached [pid 4743] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4743] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4743] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4744] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4744] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4744] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4744] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4743] <... futex resumed>) = 0 [pid 4743] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4743] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4744] <... futex resumed>) = 1 [pid 4744] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4744] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4743] <... futex resumed>) = 0 [pid 4743] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4743] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4744] <... futex resumed>) = 1 [pid 4744] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4744] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4743] <... futex resumed>) = 0 [pid 4743] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4743] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4744] <... futex resumed>) = 1 [pid 4744] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4744] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4743] <... futex resumed>) = 0 [pid 4743] exit_group(0) = ? [pid 4744] <... futex resumed>) = ? [pid 4744] +++ exited with 0 +++ [pid 4743] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4743, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18179", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18179/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18179/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18179") = 0 mkdir("./18180", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4745 ./strace-static-x86_64: Process 4745 attached [pid 4745] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4745] chdir("./18180") = 0 [pid 4745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4745] setpgid(0, 0) = 0 [pid 4745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4745] write(3, "1000", 4) = 4 [pid 4745] close(3) = 0 [pid 4745] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4745] write(1, "executing program\n", 18executing program ) = 18 [pid 4745] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4745] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4745] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4745] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4745] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4745] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4746 attached => {parent_tid=[4746]}, 88) = 4746 [pid 4745] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4745] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4745] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4746] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4746] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4746] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4745] <... futex resumed>) = 0 [pid 4745] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4745] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4746] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4746] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4745] <... futex resumed>) = 0 [pid 4745] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4745] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4746] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4746] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4745] <... futex resumed>) = 0 [pid 4745] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4745] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4746] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4746] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4745] <... futex resumed>) = 0 [pid 4745] exit_group(0) = ? [pid 4746] +++ exited with 0 +++ [pid 4745] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18180", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18180/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18180/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18180/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18180") = 0 mkdir("./18181", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4747 ./strace-static-x86_64: Process 4747 attached [pid 4747] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4747] chdir("./18181") = 0 [pid 4747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4747] setpgid(0, 0) = 0 [pid 4747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4747] write(3, "1000", 4) = 4 [pid 4747] close(3) = 0 [pid 4747] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4747] write(1, "executing program\n", 18executing program ) = 18 [pid 4747] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4747] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4747] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4747] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4747] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4747] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4747] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4748 attached => {parent_tid=[4748]}, 88) = 4748 [pid 4748] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4748] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4748] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4747] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4747] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4748] <... futex resumed>) = 0 [pid 4748] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4748] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4748] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4747] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4747] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4748] <... futex resumed>) = 0 [pid 4748] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4747] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4748] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4748] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4747] <... futex resumed>) = 0 [pid 4747] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4747] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4748] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4748] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4747] <... futex resumed>) = 0 [pid 4747] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4747] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4748] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4748] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4747] <... futex resumed>) = 0 [pid 4747] exit_group(0) = ? [pid 4748] +++ exited with 0 +++ [pid 4747] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4747, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18181", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18181/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18181/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18181") = 0 mkdir("./18182", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4749 ./strace-static-x86_64: Process 4749 attached [pid 4749] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4749] chdir("./18182") = 0 [pid 4749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4749] setpgid(0, 0) = 0 [pid 4749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4749] write(3, "1000", 4) = 4 [pid 4749] close(3) = 0 [pid 4749] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4749] write(1, "executing program\n", 18executing program ) = 18 [pid 4749] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4749] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4749] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4749] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4749] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4749] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4749] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4750]}, 88) = 4750 [pid 4749] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4749] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4749] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4750 attached [pid 4750] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4750] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4750] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4749] <... futex resumed>) = 0 [pid 4749] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4749] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4750] <... futex resumed>) = 1 [pid 4750] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4750] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4749] <... futex resumed>) = 0 [pid 4749] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4749] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4750] <... futex resumed>) = 1 [pid 4750] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4750] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4749] <... futex resumed>) = 0 [pid 4749] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4749] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4750] <... futex resumed>) = 1 [pid 4750] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4750] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4749] <... futex resumed>) = 0 [pid 4749] exit_group(0) = ? [pid 4750] <... futex resumed>) = ? [pid 4750] +++ exited with 0 +++ [pid 4749] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18182", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18182/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18182/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18182") = 0 mkdir("./18183", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4751 ./strace-static-x86_64: Process 4751 attached [pid 4751] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4751] chdir("./18183") = 0 [pid 4751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4751] setpgid(0, 0) = 0 [pid 4751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4751] write(3, "1000", 4) = 4 [pid 4751] close(3) = 0 [pid 4751] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4751] write(1, "executing program\n", 18) = 18 [pid 4751] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4751] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4751] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4751] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4751] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4751] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4751] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4752]}, 88) = 4752 [pid 4751] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4751] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4751] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4752 attached [pid 4752] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4752] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4752] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4752] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4751] <... futex resumed>) = 0 [pid 4751] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4751] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4752] <... futex resumed>) = 1 [pid 4752] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4752] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4751] <... futex resumed>) = 0 [pid 4751] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4751] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4752] <... futex resumed>) = 1 [pid 4752] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4752] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4751] <... futex resumed>) = 0 [pid 4751] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4751] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4752] <... futex resumed>) = 1 [pid 4752] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4752] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4751] <... futex resumed>) = 0 [pid 4751] exit_group(0) = ? [pid 4752] <... futex resumed>) = ? [pid 4752] +++ exited with 0 +++ [pid 4751] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18183", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18183/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18183/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18183/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18183") = 0 mkdir("./18184", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4753 ./strace-static-x86_64: Process 4753 attached [pid 4753] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4753] chdir("./18184") = 0 [pid 4753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4753] setpgid(0, 0) = 0 [pid 4753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4753] write(3, "1000", 4) = 4 [pid 4753] close(3) = 0 [pid 4753] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4753] write(1, "executing program\n", 18executing program ) = 18 [pid 4753] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4753] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4753] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4753] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4753] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4753] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4753] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4754 attached => {parent_tid=[4754]}, 88) = 4754 [pid 4754] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4754] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4754] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4753] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4753] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4754] <... futex resumed>) = 0 [pid 4754] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4753] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4754] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4754] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4753] <... futex resumed>) = 0 [pid 4753] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4753] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4754] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4754] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4753] <... futex resumed>) = 0 [pid 4753] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4753] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4754] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4754] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4753] <... futex resumed>) = 0 [pid 4753] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4753] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4754] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4754] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4753] <... futex resumed>) = 0 [pid 4753] exit_group(0) = ? [pid 4754] +++ exited with 0 +++ [pid 4753] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4753, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18184", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18184/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18184/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18184/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18184") = 0 mkdir("./18185", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4755 ./strace-static-x86_64: Process 4755 attached [pid 4755] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4755] chdir("./18185") = 0 [pid 4755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4755] setpgid(0, 0) = 0 [pid 4755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4755] write(3, "1000", 4) = 4 [pid 4755] close(3) = 0 [pid 4755] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4755] write(1, "executing program\n", 18executing program ) = 18 [pid 4755] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4755] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4755] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4755] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4755] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4755] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4755] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4756]}, 88) = 4756 [pid 4755] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4755] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4755] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4756 attached [pid 4756] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4756] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4756] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4756] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4755] <... futex resumed>) = 0 [pid 4755] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4755] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4756] <... futex resumed>) = 1 [pid 4756] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4756] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4755] <... futex resumed>) = 0 [pid 4755] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4755] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4756] <... futex resumed>) = 1 [pid 4756] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4756] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4755] <... futex resumed>) = 0 [pid 4755] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4755] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4756] <... futex resumed>) = 1 [pid 4756] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4756] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4755] <... futex resumed>) = 0 [pid 4755] exit_group(0) = ? [pid 4756] +++ exited with 0 +++ [pid 4755] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18185", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18185/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18185/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18185/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18185") = 0 mkdir("./18186", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4757 ./strace-static-x86_64: Process 4757 attached [pid 4757] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4757] chdir("./18186") = 0 [pid 4757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4757] setpgid(0, 0) = 0 [pid 4757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4757] write(3, "1000", 4) = 4 [pid 4757] close(3) = 0 [pid 4757] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4757] write(1, "executing program\n", 18executing program ) = 18 [pid 4757] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4757] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4757] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4757] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4757] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4757] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4758 attached => {parent_tid=[4758]}, 88) = 4758 [pid 4758] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4758] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4758] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4757] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4757] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4758] <... futex resumed>) = 0 [pid 4758] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4758] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4758] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4757] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4757] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4758] <... futex resumed>) = 0 [pid 4758] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4758] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4758] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4757] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4757] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4758] <... futex resumed>) = 0 [pid 4758] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4758] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4758] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4757] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4757] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4758] <... futex resumed>) = 0 [pid 4758] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4758] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4758] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4757] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4757] exit_group(0) = ? [pid 4758] <... futex resumed>) = ? [pid 4758] +++ exited with 0 +++ [pid 4757] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18186", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18186/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18186/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18186/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18186") = 0 mkdir("./18187", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4759 ./strace-static-x86_64: Process 4759 attached [pid 4759] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4759] chdir("./18187") = 0 [pid 4759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4759] setpgid(0, 0) = 0 [pid 4759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4759] write(3, "1000", 4) = 4 [pid 4759] close(3) = 0 [pid 4759] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4759] write(1, "executing program\n", 18) = 18 [pid 4759] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4759] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4759] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4759] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4759] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4759] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4759] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4760 attached => {parent_tid=[4760]}, 88) = 4760 [pid 4760] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4759] rt_sigprocmask(SIG_SETMASK, [], [pid 4760] <... set_robust_list resumed>) = 0 [pid 4759] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4760] rt_sigprocmask(SIG_SETMASK, [], [pid 4759] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4760] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4759] <... futex resumed>) = 0 [pid 4760] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4759] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4760] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4760] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4759] <... futex resumed>) = 0 [pid 4759] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4759] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4760] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4760] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4759] <... futex resumed>) = 0 [pid 4759] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4759] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4760] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4760] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4759] <... futex resumed>) = 0 [pid 4759] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4759] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4760] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4760] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4759] <... futex resumed>) = 0 [pid 4759] exit_group(0) = ? [pid 4760] +++ exited with 0 +++ [pid 4759] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18187", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18187/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18187/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18187/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18187") = 0 mkdir("./18188", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4761 ./strace-static-x86_64: Process 4761 attached [pid 4761] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4761] chdir("./18188") = 0 [pid 4761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4761] setpgid(0, 0) = 0 [pid 4761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4761] write(3, "1000", 4) = 4 [pid 4761] close(3) = 0 [pid 4761] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4761] write(1, "executing program\n", 18executing program ) = 18 [pid 4761] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4761] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4761] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4761] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4761] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4761] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4762 attached => {parent_tid=[4762]}, 88) = 4762 [pid 4762] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4762] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4762] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4761] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4761] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4762] <... futex resumed>) = 0 [pid 4761] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4762] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4762] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4762] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4761] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4761] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4762] <... futex resumed>) = 0 [pid 4762] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4761] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4762] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4761] <... futex resumed>) = 0 [pid 4761] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4761] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4762] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4762] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4761] <... futex resumed>) = 0 [pid 4761] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4761] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4762] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4762] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4761] <... futex resumed>) = 0 [pid 4761] exit_group(0) = ? [pid 4762] +++ exited with 0 +++ [pid 4761] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18188", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18188/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18188/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18188") = 0 mkdir("./18189", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4763 ./strace-static-x86_64: Process 4763 attached [pid 4763] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4763] chdir("./18189") = 0 [pid 4763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4763] setpgid(0, 0) = 0 [pid 4763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4763] write(3, "1000", 4) = 4 [pid 4763] close(3) = 0 [pid 4763] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4763] write(1, "executing program\n", 18executing program ) = 18 [pid 4763] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4763] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4763] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4763] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4763] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4763] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4764 attached => {parent_tid=[4764]}, 88) = 4764 [pid 4764] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4764] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4764] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4763] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4764] <... futex resumed>) = 0 [pid 4764] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4764] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4764] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4763] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4763] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4764] <... futex resumed>) = 0 [pid 4764] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4764] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4764] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4763] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4763] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4764] <... futex resumed>) = 0 [pid 4764] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4764] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4764] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4763] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4763] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4764] <... futex resumed>) = 0 [pid 4764] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4764] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4764] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4763] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4763] exit_group(0) = ? [pid 4764] <... futex resumed>) = ? [pid 4764] +++ exited with 0 +++ [pid 4763] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4763, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18189", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18189/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18189/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18189/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18189") = 0 mkdir("./18190", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4765 ./strace-static-x86_64: Process 4765 attached [pid 4765] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4765] chdir("./18190") = 0 [pid 4765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4765] setpgid(0, 0) = 0 [pid 4765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4765] write(3, "1000", 4) = 4 [pid 4765] close(3) = 0 [pid 4765] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4765] write(1, "executing program\n", 18executing program ) = 18 [pid 4765] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4765] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4765] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4765] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4765] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4765] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4765] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4766 attached => {parent_tid=[4766]}, 88) = 4766 [pid 4765] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4765] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4765] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4766] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4766] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4766] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4766] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4765] <... futex resumed>) = 0 [pid 4765] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4765] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4766] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4766] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4765] <... futex resumed>) = 0 [pid 4765] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4766] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4765] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4766] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4766] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4765] <... futex resumed>) = 0 [pid 4765] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4765] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4766] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4766] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4765] <... futex resumed>) = 0 [pid 4765] exit_group(0) = ? [pid 4766] +++ exited with 0 +++ [pid 4765] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4765, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18190", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18190/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18190/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18190/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18190") = 0 mkdir("./18191", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4768 ./strace-static-x86_64: Process 4768 attached [pid 4768] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4768] chdir("./18191") = 0 [pid 4768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4768] setpgid(0, 0) = 0 [pid 4768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4768] write(3, "1000", 4) = 4 [pid 4768] close(3) = 0 [pid 4768] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4768] write(1, "executing program\n", 18) = 18 [pid 4768] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4768] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4768] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4768] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4768] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4768] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4768] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4769 attached => {parent_tid=[4769]}, 88) = 4769 [pid 4769] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4769] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4769] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4768] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4768] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4769] <... futex resumed>) = 0 [pid 4769] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4769] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4769] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4768] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4768] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4769] <... futex resumed>) = 0 [pid 4769] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4769] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4769] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4768] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4768] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4769] <... futex resumed>) = 0 [pid 4769] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4769] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4769] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4768] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4768] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4769] <... futex resumed>) = 0 [pid 4769] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4769] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4769] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4768] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4768] exit_group(0) = ? [pid 4769] <... futex resumed>) = ? [pid 4769] +++ exited with 0 +++ [pid 4768] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4768, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18191", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18191/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18191/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18191/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18191") = 0 mkdir("./18192", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4770 attached , child_tidptr=0x55558931b690) = 4770 [pid 4770] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4770] chdir("./18192") = 0 [pid 4770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4770] setpgid(0, 0) = 0 [pid 4770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4770] write(3, "1000", 4) = 4 [pid 4770] close(3) = 0 [pid 4770] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4770] write(1, "executing program\n", 18) = 18 [pid 4770] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4770] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4770] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4770] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4770] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4770] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4771 attached => {parent_tid=[4771]}, 88) = 4771 [pid 4770] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4770] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4770] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4771] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4771] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4771] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4771] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4770] <... futex resumed>) = 0 [pid 4770] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4770] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4771] <... futex resumed>) = 1 [pid 4771] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4771] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4770] <... futex resumed>) = 0 [pid 4770] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4770] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4771] <... futex resumed>) = 1 [pid 4771] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4771] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4770] <... futex resumed>) = 0 [pid 4770] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4770] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4771] <... futex resumed>) = 1 [pid 4771] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4771] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4770] <... futex resumed>) = 0 [pid 4770] exit_group(0) = ? [pid 4771] <... futex resumed>) = ? [pid 4771] +++ exited with 0 +++ [pid 4770] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4770, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18192", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18192/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18192/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18192/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18192") = 0 mkdir("./18193", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4772 ./strace-static-x86_64: Process 4772 attached [pid 4772] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4772] chdir("./18193") = 0 [pid 4772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4772] setpgid(0, 0) = 0 [pid 4772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4772] write(3, "1000", 4) = 4 [pid 4772] close(3) = 0 [pid 4772] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4772] write(1, "executing program\n", 18) = 18 [pid 4772] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4772] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4772] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4772] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4772] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4772] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4773 attached => {parent_tid=[4773]}, 88) = 4773 [pid 4772] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4772] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4772] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4773] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4773] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4773] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4773] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4772] <... futex resumed>) = 0 [pid 4772] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4772] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4773] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4773] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4772] <... futex resumed>) = 0 [pid 4772] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4772] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4773] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4773] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4772] <... futex resumed>) = 0 [pid 4772] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4772] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4773] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4773] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4772] <... futex resumed>) = 0 [pid 4772] exit_group(0 [pid 4773] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4772] <... exit_group resumed>) = ? [pid 4773] <... futex resumed>) = ? [pid 4773] +++ exited with 0 +++ [pid 4772] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18193", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18193/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18193/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18193/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18193") = 0 mkdir("./18194", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4774 ./strace-static-x86_64: Process 4774 attached [pid 4774] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4774] chdir("./18194") = 0 [pid 4774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4774] setpgid(0, 0) = 0 [pid 4774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4774] write(3, "1000", 4) = 4 [pid 4774] close(3executing program ) = 0 [pid 4774] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4774] write(1, "executing program\n", 18) = 18 [pid 4774] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4774] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4774] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4774] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4774] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4774] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4775 attached => {parent_tid=[4775]}, 88) = 4775 [pid 4775] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4775] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4775] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4774] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4774] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4775] <... futex resumed>) = 0 [pid 4775] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4775] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4775] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4774] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4774] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4775] <... futex resumed>) = 0 [pid 4775] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4775] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4775] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4774] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4774] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4775] <... futex resumed>) = 0 [pid 4775] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4775] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4775] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4774] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4774] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4775] <... futex resumed>) = 0 [pid 4775] write(-1, "0x0000000000000001", 18 [pid 4774] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4775] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4775] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4775] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4774] exit_group(0) = ? [pid 4775] <... futex resumed>) = ? [pid 4775] +++ exited with 0 +++ [pid 4774] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4774, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18194", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18194/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18194/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18194/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18194") = 0 mkdir("./18195", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4776 ./strace-static-x86_64: Process 4776 attached [pid 4776] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4776] chdir("./18195") = 0 [pid 4776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4776] setpgid(0, 0) = 0 [pid 4776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4776] write(3, "1000", 4) = 4 [pid 4776] close(3) = 0 [pid 4776] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4776] write(1, "executing program\n", 18executing program ) = 18 [pid 4776] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4776] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4776] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4776] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4776] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4776] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4777 attached [pid 4777] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4777] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4776] <... clone3 resumed> => {parent_tid=[4777]}, 88) = 4777 [pid 4776] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4776] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4777] <... futex resumed>) = 0 [pid 4777] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4777] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4777] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4776] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4776] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4777] <... futex resumed>) = 0 [pid 4777] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4777] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4777] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4776] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4776] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4777] <... futex resumed>) = 0 [pid 4777] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4777] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4777] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4776] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4776] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4777] <... futex resumed>) = 0 [pid 4776] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4777] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4777] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4777] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4776] <... futex resumed>) = 0 [pid 4776] exit_group(0) = ? [pid 4777] <... futex resumed>) = ? [pid 4777] +++ exited with 0 +++ [pid 4776] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4776, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18195", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18195/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18195/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18195/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18195") = 0 mkdir("./18196", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4778 ./strace-static-x86_64: Process 4778 attached [pid 4778] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4778] chdir("./18196") = 0 [pid 4778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4778] setpgid(0, 0) = 0 [pid 4778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4778] write(3, "1000", 4) = 4 [pid 4778] close(3) = 0 [pid 4778] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4778] write(1, "executing program\n", 18executing program ) = 18 [pid 4778] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4778] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4778] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4778] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4778] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4779 attached => {parent_tid=[4779]}, 88) = 4779 [pid 4778] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4778] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4778] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4779] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4779] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4779] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4778] <... futex resumed>) = 0 [pid 4778] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4779] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4778] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4779] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4779] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4778] <... futex resumed>) = 0 [pid 4778] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4778] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4779] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4779] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4778] <... futex resumed>) = 0 [pid 4778] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4778] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4779] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4779] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4778] <... futex resumed>) = 0 [pid 4778] exit_group(0) = ? [pid 4779] +++ exited with 0 +++ [pid 4778] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4778, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18196", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18196/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18196/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18196/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18196") = 0 mkdir("./18197", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4780 ./strace-static-x86_64: Process 4780 attached [pid 4780] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4780] chdir("./18197") = 0 [pid 4780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4780] setpgid(0, 0) = 0 [pid 4780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4780] write(3, "1000", 4) = 4 [pid 4780] close(3) = 0 [pid 4780] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4780] write(1, "executing program\n", 18executing program ) = 18 [pid 4780] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4780] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4780] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4780] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4780] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4780] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4780] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4781 attached => {parent_tid=[4781]}, 88) = 4781 [pid 4781] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4781] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4781] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4780] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4780] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4781] <... futex resumed>) = 0 [pid 4781] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4780] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4781] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4781] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4781] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4780] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4780] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4781] <... futex resumed>) = 0 [pid 4781] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4781] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4781] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4780] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4780] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4781] <... futex resumed>) = 0 [pid 4781] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4781] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4781] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4780] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4780] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4781] <... futex resumed>) = 0 [pid 4781] write(-1, "0x0000000000000001", 18 [pid 4780] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4781] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4781] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4781] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4780] <... futex resumed>) = 0 [pid 4780] exit_group(0) = ? [pid 4781] <... futex resumed>) = ? [pid 4781] +++ exited with 0 +++ [pid 4780] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4780, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18197", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18197/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18197/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18197/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18197") = 0 mkdir("./18198", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4782 ./strace-static-x86_64: Process 4782 attached [pid 4782] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4782] chdir("./18198") = 0 [pid 4782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4782] setpgid(0, 0) = 0 [pid 4782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4782] write(3, "1000", 4) = 4 [pid 4782] close(3) = 0 [pid 4782] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4782] write(1, "executing program\n", 18executing program ) = 18 [pid 4782] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4782] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4782] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4782] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4782] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4782] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4783 attached => {parent_tid=[4783]}, 88) = 4783 [pid 4783] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4782] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4782] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4782] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4783] <... set_robust_list resumed>) = 0 [pid 4783] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4783] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4783] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4782] <... futex resumed>) = 0 [pid 4782] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4782] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4783] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4783] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4782] <... futex resumed>) = 0 [pid 4782] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4782] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4783] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4783] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4782] <... futex resumed>) = 0 [pid 4782] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4782] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4783] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4783] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4783] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4782] <... futex resumed>) = 0 [pid 4782] exit_group(0) = ? [pid 4783] <... futex resumed>) = ? [pid 4783] +++ exited with 0 +++ [pid 4782] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4782, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18198", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18198/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18198/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18198/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18198") = 0 mkdir("./18199", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4784 attached , child_tidptr=0x55558931b690) = 4784 [pid 4784] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4784] chdir("./18199") = 0 [pid 4784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4784] setpgid(0, 0) = 0 [pid 4784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4784] write(3, "1000", 4) = 4 [pid 4784] close(3) = 0 [pid 4784] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4784] write(1, "executing program\n", 18executing program ) = 18 [pid 4784] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4784] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4784] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4784] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4784] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4784] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4784] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4785]}, 88) = 4785 [pid 4784] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4784] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4784] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4785 attached [pid 4785] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4785] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4785] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4785] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4784] <... futex resumed>) = 0 [pid 4784] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4784] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4785] <... futex resumed>) = 1 [pid 4785] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4785] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4784] <... futex resumed>) = 0 [pid 4784] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4784] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4785] <... futex resumed>) = 1 [pid 4785] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4785] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4784] <... futex resumed>) = 0 [pid 4784] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4784] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4785] <... futex resumed>) = 1 [pid 4785] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4785] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4784] <... futex resumed>) = 0 [pid 4784] exit_group(0) = ? [pid 4785] <... futex resumed>) = ? [pid 4785] +++ exited with 0 +++ [pid 4784] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4784, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18199", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18199/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18199/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18199/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18199") = 0 mkdir("./18200", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4786 ./strace-static-x86_64: Process 4786 attached [pid 4786] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4786] chdir("./18200") = 0 [pid 4786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4786] setpgid(0, 0) = 0 [pid 4786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4786] write(3, "1000", 4) = 4 [pid 4786] close(3) = 0 [pid 4786] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4786] write(1, "executing program\n", 18executing program ) = 18 [pid 4786] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4786] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4786] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4786] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4786] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4786] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4786] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4787 attached => {parent_tid=[4787]}, 88) = 4787 [pid 4787] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4787] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4787] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4786] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4786] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4787] <... futex resumed>) = 0 [pid 4787] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4787] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4787] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4786] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4786] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4787] <... futex resumed>) = 0 [pid 4787] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4787] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4787] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4786] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4786] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4787] <... futex resumed>) = 0 [pid 4787] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4787] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4787] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4786] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4786] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4787] <... futex resumed>) = 0 [pid 4787] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4787] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4787] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4786] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4786] exit_group(0) = ? [pid 4787] <... futex resumed>) = ? [pid 4787] +++ exited with 0 +++ [pid 4786] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4786, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18200", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18200/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18200/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18200/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18200") = 0 mkdir("./18201", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4788 attached , child_tidptr=0x55558931b690) = 4788 [pid 4788] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4788] chdir("./18201") = 0 [pid 4788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4788] setpgid(0, 0) = 0 [pid 4788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4788] write(3, "1000", 4) = 4 [pid 4788] close(3) = 0 [pid 4788] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4788] write(1, "executing program\n", 18) = 18 [pid 4788] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4788] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4788] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4788] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4788] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4788] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4789]}, 88) = 4789 [pid 4788] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4788] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4788] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4789 attached [pid 4789] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4789] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4789] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4789] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4788] <... futex resumed>) = 0 [pid 4788] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4788] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4789] <... futex resumed>) = 1 [pid 4789] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4789] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4788] <... futex resumed>) = 0 [pid 4788] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4788] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4789] <... futex resumed>) = 1 [pid 4789] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4789] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4788] <... futex resumed>) = 0 [pid 4788] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4788] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4789] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4789] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4788] <... futex resumed>) = 0 [pid 4788] exit_group(0) = ? [pid 4789] +++ exited with 0 +++ [pid 4788] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18201", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18201/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18201/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18201/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18201") = 0 mkdir("./18202", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4790 ./strace-static-x86_64: Process 4790 attached [pid 4790] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4790] chdir("./18202") = 0 [pid 4790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4790] setpgid(0, 0) = 0 [pid 4790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4790] write(3, "1000", 4) = 4 [pid 4790] close(3) = 0 [pid 4790] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4790] write(1, "executing program\n", 18) = 18 [pid 4790] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4790] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4790] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4790] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4790] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4790] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4791 attached => {parent_tid=[4791]}, 88) = 4791 [pid 4790] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4790] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4790] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4791] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4791] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4791] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4791] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4790] <... futex resumed>) = 0 [pid 4790] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4790] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4791] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4791] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4790] <... futex resumed>) = 0 [pid 4790] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4790] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4791] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4791] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4790] <... futex resumed>) = 0 [pid 4790] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4790] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4791] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4791] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4790] <... futex resumed>) = 0 [pid 4790] exit_group(0) = ? [pid 4791] +++ exited with 0 +++ [pid 4790] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4790, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18202", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18202/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18202/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18202/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18202") = 0 mkdir("./18203", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4792 ./strace-static-x86_64: Process 4792 attached [pid 4792] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4792] chdir("./18203") = 0 [pid 4792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4792] setpgid(0, 0) = 0 [pid 4792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4792] write(3, "1000", 4) = 4 [pid 4792] close(3) = 0 [pid 4792] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4792] write(1, "executing program\n", 18) = 18 [pid 4792] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4792] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4792] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4792] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4792] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4792] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4792] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4793 attached => {parent_tid=[4793]}, 88) = 4793 [pid 4793] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4793] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4793] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4792] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4792] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4793] <... futex resumed>) = 0 [pid 4792] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4793] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4793] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4793] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4792] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4792] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4793] <... futex resumed>) = 0 [pid 4793] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4792] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4793] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4792] <... futex resumed>) = 0 [pid 4792] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4792] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4793] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4793] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4792] <... futex resumed>) = 0 [pid 4792] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4792] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4793] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4793] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4793] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4792] <... futex resumed>) = 0 [pid 4792] exit_group(0) = ? [pid 4793] <... futex resumed>) = ? [pid 4793] +++ exited with 0 +++ [pid 4792] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4792, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18203", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18203/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18203/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18203/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18203") = 0 mkdir("./18204", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4794 attached , child_tidptr=0x55558931b690) = 4794 [pid 4794] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4794] chdir("./18204") = 0 [pid 4794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4794] setpgid(0, 0) = 0 [pid 4794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4794] write(3, "1000", 4) = 4 [pid 4794] close(3) = 0 [pid 4794] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4794] write(1, "executing program\n", 18) = 18 [pid 4794] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4794] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4794] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4794] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4794] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4794] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4795 attached => {parent_tid=[4795]}, 88) = 4795 [pid 4794] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4794] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4794] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4795] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4795] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4795] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4795] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4794] <... futex resumed>) = 0 [pid 4794] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4794] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4795] <... futex resumed>) = 1 [pid 4795] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4795] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4794] <... futex resumed>) = 0 [pid 4794] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4794] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4795] <... futex resumed>) = 1 [pid 4795] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4795] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4794] <... futex resumed>) = 0 [pid 4794] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4794] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4795] <... futex resumed>) = 1 [pid 4795] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4795] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4794] <... futex resumed>) = 0 [pid 4794] exit_group(0) = ? [pid 4795] <... futex resumed>) = ? [pid 4795] +++ exited with 0 +++ [pid 4794] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4794, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18204", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18204/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18204/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18204/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18204") = 0 mkdir("./18205", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4796 ./strace-static-x86_64: Process 4796 attached [pid 4796] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4796] chdir("./18205") = 0 [pid 4796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4796] setpgid(0, 0) = 0 [pid 4796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4796] write(3, "1000", 4) = 4 [pid 4796] close(3) = 0 [pid 4796] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4796] write(1, "executing program\n", 18executing program ) = 18 [pid 4796] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4796] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4796] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4796] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4796] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4796] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4797 attached => {parent_tid=[4797]}, 88) = 4797 [pid 4797] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4797] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4796] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4796] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4797] <... futex resumed>) = 0 [pid 4797] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4796] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4797] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4797] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4797] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4796] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4796] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4797] <... futex resumed>) = 0 [pid 4797] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4796] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4797] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4797] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4796] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4796] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4797] <... futex resumed>) = 0 [pid 4797] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4797] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4797] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4796] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4796] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4797] <... futex resumed>) = 0 [pid 4796] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4797] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4797] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4796] <... futex resumed>) = 0 [pid 4797] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4796] exit_group(0) = ? [pid 4797] <... futex resumed>) = ? [pid 4797] +++ exited with 0 +++ [pid 4796] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4796, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18205", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18205/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18205/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18205/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18205") = 0 mkdir("./18206", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4798 attached , child_tidptr=0x55558931b690) = 4798 [pid 4798] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4798] chdir("./18206") = 0 [pid 4798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4798] setpgid(0, 0) = 0 [pid 4798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4798] write(3, "1000", 4) = 4 [pid 4798] close(3) = 0 [pid 4798] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4798] write(1, "executing program\n", 18executing program ) = 18 [pid 4798] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4798] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4798] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4798] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4798] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4798] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4798] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4799 attached [pid 4799] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4798] <... clone3 resumed> => {parent_tid=[4799]}, 88) = 4799 [pid 4799] <... set_robust_list resumed>) = 0 [pid 4799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4799] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4798] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4798] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4799] <... futex resumed>) = 0 [pid 4799] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4799] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4799] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4798] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4798] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4799] <... futex resumed>) = 0 [pid 4799] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4799] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4799] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4798] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4798] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4799] <... futex resumed>) = 0 [pid 4799] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4799] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4799] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4798] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4798] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4799] <... futex resumed>) = 0 [pid 4798] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4799] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4799] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4798] <... futex resumed>) = 0 [pid 4799] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4798] exit_group(0) = ? [pid 4799] <... futex resumed>) = ? [pid 4799] +++ exited with 0 +++ [pid 4798] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4798, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18206", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18206/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18206/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18206/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18206") = 0 mkdir("./18207", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4800 ./strace-static-x86_64: Process 4800 attached [pid 4800] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4800] chdir("./18207") = 0 [pid 4800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4800] setpgid(0, 0) = 0 [pid 4800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4800] write(3, "1000", 4) = 4 [pid 4800] close(3) = 0 [pid 4800] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4800] write(1, "executing program\n", 18) = 18 [pid 4800] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4800] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4800] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4800] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4800] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4800] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4801 attached => {parent_tid=[4801]}, 88) = 4801 [pid 4800] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4800] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4800] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4801] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4801] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4801] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4801] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4800] <... futex resumed>) = 0 [pid 4800] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4800] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4801] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4801] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4800] <... futex resumed>) = 0 [pid 4800] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4800] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4801] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4801] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4800] <... futex resumed>) = 0 [pid 4800] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4800] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4801] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4801] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4800] <... futex resumed>) = 0 [pid 4800] exit_group(0) = ? [pid 4801] +++ exited with 0 +++ [pid 4800] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4800, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18207", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18207/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18207/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18207/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18207") = 0 mkdir("./18208", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4802 ./strace-static-x86_64: Process 4802 attached [pid 4802] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4802] chdir("./18208") = 0 [pid 4802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4802] setpgid(0, 0) = 0 [pid 4802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4802] write(3, "1000", 4) = 4 [pid 4802] close(3) = 0 [pid 4802] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4802] write(1, "executing program\n", 18) = 18 [pid 4802] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4802] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4802] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4802] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4802] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4802] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4803]}, 88) = 4803 [pid 4802] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4802] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4802] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4803 attached [pid 4803] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4803] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4803] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4803] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4802] <... futex resumed>) = 0 [pid 4803] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4802] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4802] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4803] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4803] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4802] <... futex resumed>) = 0 [pid 4803] <... futex resumed>) = 1 [pid 4802] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4803] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4802] <... futex resumed>) = 0 [pid 4802] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4803] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4803] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4802] <... futex resumed>) = 0 [pid 4802] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4802] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4803] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4803] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4802] <... futex resumed>) = 0 [pid 4802] exit_group(0) = ? [pid 4803] +++ exited with 0 +++ [pid 4802] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4802, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18208", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18208/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18208/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18208/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18208") = 0 mkdir("./18209", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4804 attached , child_tidptr=0x55558931b690) = 4804 [pid 4804] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4804] chdir("./18209") = 0 [pid 4804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4804] setpgid(0, 0) = 0 [pid 4804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4804] write(3, "1000", 4) = 4 [pid 4804] close(3) = 0 [pid 4804] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4804] write(1, "executing program\n", 18executing program ) = 18 [pid 4804] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4804] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4804] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4804] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4804] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4804] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4805 attached => {parent_tid=[4805]}, 88) = 4805 [pid 4805] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4805] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4805] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4804] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4804] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4805] <... futex resumed>) = 0 [pid 4804] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4805] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4805] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4805] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4804] <... futex resumed>) = 0 [pid 4804] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4805] <... futex resumed>) = 0 [pid 4804] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4805] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4805] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4805] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4804] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4804] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4805] <... futex resumed>) = 0 [pid 4805] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4805] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4805] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4804] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4804] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4805] <... futex resumed>) = 0 [pid 4804] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4805] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4805] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4804] <... futex resumed>) = 0 [pid 4805] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4804] exit_group(0) = ? [pid 4805] <... futex resumed>) = ? [pid 4805] +++ exited with 0 +++ [pid 4804] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4804, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18209", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18209", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18209/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18209/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18209/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18209") = 0 mkdir("./18210", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4806 ./strace-static-x86_64: Process 4806 attached [pid 4806] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4806] chdir("./18210") = 0 [pid 4806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4806] setpgid(0, 0) = 0 [pid 4806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4806] write(3, "1000", 4) = 4 [pid 4806] close(3) = 0 [pid 4806] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4806] write(1, "executing program\n", 18) = 18 [pid 4806] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4806] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4806] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4806] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4806] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4806] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4807 attached => {parent_tid=[4807]}, 88) = 4807 [pid 4806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4806] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4806] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4807] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4807] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4807] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4806] <... futex resumed>) = 0 [pid 4806] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4806] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4807] <... futex resumed>) = 1 [pid 4807] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4807] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4806] <... futex resumed>) = 0 [pid 4806] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4806] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4807] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4807] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4806] <... futex resumed>) = 0 [pid 4806] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4806] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4807] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4807] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4806] <... futex resumed>) = 0 [pid 4806] exit_group(0) = ? [pid 4807] +++ exited with 0 +++ [pid 4806] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4806, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18210", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18210", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18210/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18210/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18210/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18210") = 0 mkdir("./18211", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4808 ./strace-static-x86_64: Process 4808 attached [pid 4808] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4808] chdir("./18211") = 0 [pid 4808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4808] setpgid(0, 0) = 0 [pid 4808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4808] write(3, "1000", 4) = 4 [pid 4808] close(3) = 0 [pid 4808] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4808] write(1, "executing program\n", 18) = 18 [pid 4808] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4808] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4808] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4808] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4808] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4809]}, 88) = 4809 [pid 4808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4808] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4808] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4809 attached [pid 4809] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4809] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4809] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4808] <... futex resumed>) = 0 [pid 4808] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4808] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4809] <... futex resumed>) = 1 [pid 4809] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4809] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4808] <... futex resumed>) = 0 [pid 4808] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4808] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4809] <... futex resumed>) = 1 [pid 4809] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4809] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4808] <... futex resumed>) = 0 [pid 4808] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4808] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4809] <... futex resumed>) = 1 [pid 4809] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4809] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4808] <... futex resumed>) = 0 [pid 4808] exit_group(0 [pid 4809] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4808] <... exit_group resumed>) = ? [pid 4809] <... futex resumed>) = ? [pid 4809] +++ exited with 0 +++ [pid 4808] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4808, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18211", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18211", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18211/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18211/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18211/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18211") = 0 mkdir("./18212", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4810 ./strace-static-x86_64: Process 4810 attached [pid 4810] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4810] chdir("./18212") = 0 [pid 4810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4810] setpgid(0, 0) = 0 [pid 4810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4810] write(3, "1000", 4) = 4 [pid 4810] close(3) = 0 [pid 4810] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4810] write(1, "executing program\n", 18executing program ) = 18 [pid 4810] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4810] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4810] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4810] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4810] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4810] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4811 attached => {parent_tid=[4811]}, 88) = 4811 [pid 4811] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4811] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4811] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4810] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4810] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4811] <... futex resumed>) = 0 [pid 4811] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4810] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4811] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4811] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4811] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4810] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4810] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4811] <... futex resumed>) = 0 [pid 4811] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4810] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4811] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4811] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4811] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4810] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4810] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4811] <... futex resumed>) = 0 [pid 4811] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4811] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4811] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4810] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4810] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4811] <... futex resumed>) = 0 [pid 4811] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4811] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4811] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4810] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4810] exit_group(0) = ? [pid 4811] <... futex resumed>) = ? [pid 4811] +++ exited with 0 +++ [pid 4810] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4810, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18212", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18212", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18212/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18212/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18212/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18212") = 0 mkdir("./18213", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4812 ./strace-static-x86_64: Process 4812 attached [pid 4812] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4812] chdir("./18213") = 0 [pid 4812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4812] setpgid(0, 0) = 0 [pid 4812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4812] write(3, "1000", 4) = 4 [pid 4812] close(3) = 0 [pid 4812] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4812] write(1, "executing program\n", 18) = 18 [pid 4812] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4812] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4812] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4812] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4812] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4812] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4813 attached => {parent_tid=[4813]}, 88) = 4813 [pid 4812] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4812] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4812] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4813] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4813] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4813] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4813] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4812] <... futex resumed>) = 0 [pid 4812] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4812] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4813] <... futex resumed>) = 1 [pid 4813] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4813] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4812] <... futex resumed>) = 0 [pid 4812] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4812] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4813] <... futex resumed>) = 1 [pid 4813] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4813] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4812] <... futex resumed>) = 0 [pid 4812] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4812] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4813] <... futex resumed>) = 1 [pid 4813] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4813] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4812] <... futex resumed>) = 0 [pid 4812] exit_group(0) = ? [pid 4813] <... futex resumed>) = ? [pid 4813] +++ exited with 0 +++ [pid 4812] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4812, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18213", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18213", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18213/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18213/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18213/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18213") = 0 mkdir("./18214", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4814 ./strace-static-x86_64: Process 4814 attached [pid 4814] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4814] chdir("./18214") = 0 [pid 4814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4814] setpgid(0, 0) = 0 [pid 4814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4814] write(3, "1000", 4) = 4 [pid 4814] close(3) = 0 [pid 4814] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4814] write(1, "executing program\n", 18) = 18 [pid 4814] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4814] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4814] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4814] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4814] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4814] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4815 attached => {parent_tid=[4815]}, 88) = 4815 [pid 4814] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4814] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4814] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4815] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4815] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4815] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4814] <... futex resumed>) = 0 [pid 4814] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4814] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4815] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4815] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4814] <... futex resumed>) = 0 [pid 4815] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4814] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4814] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4815] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4815] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4814] <... futex resumed>) = 0 [pid 4815] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4814] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4814] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4815] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4815] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4815] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4814] <... futex resumed>) = 0 [pid 4815] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4814] exit_group(0) = ? [pid 4815] <... futex resumed>) = ? [pid 4815] +++ exited with 0 +++ [pid 4814] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4814, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18214", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18214", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18214/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18214/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18214/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18214") = 0 mkdir("./18215", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4816 ./strace-static-x86_64: Process 4816 attached [pid 4816] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4816] chdir("./18215") = 0 [pid 4816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4816] setpgid(0, 0) = 0 [pid 4816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4816] write(3, "1000", 4) = 4 [pid 4816] close(3) = 0 [pid 4816] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4816] write(1, "executing program\n", 18executing program ) = 18 [pid 4816] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4816] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4816] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4816] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4816] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4816] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4816] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4817 attached [pid 4817] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4817] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4816] <... clone3 resumed> => {parent_tid=[4817]}, 88) = 4817 [pid 4816] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4816] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4817] <... futex resumed>) = 0 [pid 4817] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4817] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4817] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4816] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4816] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4817] <... futex resumed>) = 0 [pid 4817] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4817] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4817] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4816] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4816] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4817] <... futex resumed>) = 0 [pid 4816] <... futex resumed>) = 1 [pid 4817] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4817] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4817] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4816] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4816] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4817] <... futex resumed>) = 0 [pid 4817] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4817] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4817] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4816] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4816] exit_group(0) = ? [pid 4817] <... futex resumed>) = ? [pid 4817] +++ exited with 0 +++ [pid 4816] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4816, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18215", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18215", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18215/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18215/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18215/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18215") = 0 mkdir("./18216", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4818 ./strace-static-x86_64: Process 4818 attached [pid 4818] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4818] chdir("./18216") = 0 [pid 4818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4818] setpgid(0, 0) = 0 [pid 4818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4818] write(3, "1000", 4) = 4 [pid 4818] close(3) = 0 [pid 4818] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4818] write(1, "executing program\n", 18) = 18 [pid 4818] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4818] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4818] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4818] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4818] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4818] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4819 attached => {parent_tid=[4819]}, 88) = 4819 [pid 4818] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4818] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4818] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4819] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4819] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4819] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4819] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4818] <... futex resumed>) = 0 [pid 4818] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4818] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4819] <... futex resumed>) = 1 [pid 4819] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4819] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4818] <... futex resumed>) = 0 [pid 4818] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4818] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4819] <... futex resumed>) = 1 [pid 4819] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4819] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4818] <... futex resumed>) = 0 [pid 4818] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4818] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4819] <... futex resumed>) = 1 [pid 4819] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4819] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4818] <... futex resumed>) = 0 [pid 4818] exit_group(0) = ? [pid 4819] <... futex resumed>) = ? [pid 4819] +++ exited with 0 +++ [pid 4818] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4818, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18216", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18216/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18216/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18216/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18216") = 0 mkdir("./18217", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4820 ./strace-static-x86_64: Process 4820 attached [pid 4820] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4820] chdir("./18217") = 0 [pid 4820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4820] setpgid(0, 0) = 0 [pid 4820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4820] write(3, "1000", 4) = 4 [pid 4820] close(3) = 0 [pid 4820] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4820] write(1, "executing program\n", 18executing program ) = 18 [pid 4820] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4820] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4820] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4820] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4820] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4820] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4821 attached => {parent_tid=[4821]}, 88) = 4821 [pid 4821] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4821] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4821] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4820] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4820] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4821] <... futex resumed>) = 0 [pid 4821] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4820] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4821] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4821] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4820] <... futex resumed>) = 0 [pid 4820] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4820] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4821] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4821] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4820] <... futex resumed>) = 0 [pid 4820] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4820] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4821] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4821] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4820] <... futex resumed>) = 0 [pid 4821] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4820] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4820] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4821] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4821] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4821] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4820] <... futex resumed>) = 0 [pid 4820] exit_group(0) = ? [pid 4821] +++ exited with 0 +++ [pid 4820] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4820, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18217", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18217/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18217/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18217/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18217") = 0 mkdir("./18218", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4822 attached , child_tidptr=0x55558931b690) = 4822 [pid 4822] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4822] chdir("./18218") = 0 [pid 4822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4822] setpgid(0, 0) = 0 [pid 4822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4822] write(3, "1000", 4) = 4 [pid 4822] close(3) = 0 [pid 4822] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4822] write(1, "executing program\n", 18) = 18 [pid 4822] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4822] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4822] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4822] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4822] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4822] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4822] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4823 attached [pid 4823] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4822] <... clone3 resumed> => {parent_tid=[4823]}, 88) = 4823 [pid 4822] rt_sigprocmask(SIG_SETMASK, [], [pid 4823] <... set_robust_list resumed>) = 0 [pid 4822] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4823] rt_sigprocmask(SIG_SETMASK, [], [pid 4822] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4823] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4822] <... futex resumed>) = 0 [pid 4823] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4822] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4823] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4823] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4822] <... futex resumed>) = 0 [pid 4822] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4822] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4823] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4823] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4822] <... futex resumed>) = 0 [pid 4822] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4822] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4823] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4823] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4822] <... futex resumed>) = 0 [pid 4822] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4822] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4823] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4823] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4822] <... futex resumed>) = 0 [pid 4822] exit_group(0) = ? [pid 4823] +++ exited with 0 +++ [pid 4822] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4822, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18218", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18218/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18218/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18218/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18218") = 0 mkdir("./18219", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4824 ./strace-static-x86_64: Process 4824 attached [pid 4824] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4824] chdir("./18219") = 0 [pid 4824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4824] setpgid(0, 0) = 0 [pid 4824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4824] write(3, "1000", 4) = 4 [pid 4824] close(3) = 0 [pid 4824] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4824] write(1, "executing program\n", 18executing program ) = 18 [pid 4824] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4824] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4824] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4824] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4825]}, 88) = 4825 [pid 4824] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4824] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4824] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4825 attached [pid 4825] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4825] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4825] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4825] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4824] <... futex resumed>) = 0 [pid 4824] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4824] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4825] <... futex resumed>) = 1 [pid 4825] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4825] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4824] <... futex resumed>) = 0 [pid 4824] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4824] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4825] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4825] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4824] <... futex resumed>) = 0 [pid 4824] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4824] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4825] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4825] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4824] <... futex resumed>) = 0 [pid 4824] exit_group(0) = ? [pid 4825] +++ exited with 0 +++ [pid 4824] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4824, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18219", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18219/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18219/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18219/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18219") = 0 mkdir("./18220", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4826 ./strace-static-x86_64: Process 4826 attached [pid 4826] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4826] chdir("./18220") = 0 [pid 4826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4826] setpgid(0, 0) = 0 [pid 4826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4826] write(3, "1000", 4) = 4 [pid 4826] close(3) = 0 [pid 4826] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4826] write(1, "executing program\n", 18) = 18 [pid 4826] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4826] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4826] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4826] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4826] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4826] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4827 attached => {parent_tid=[4827]}, 88) = 4827 [pid 4826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4826] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4826] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4827] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4827] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4827] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4826] <... futex resumed>) = 0 [pid 4826] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4826] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4827] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4827] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4826] <... futex resumed>) = 0 [pid 4827] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4826] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4826] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4827] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4827] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4827] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4826] <... futex resumed>) = 0 [pid 4826] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4827] <... futex resumed>) = 0 [pid 4826] <... futex resumed>) = 1 [pid 4827] write(-1, "0x0000000000000001", 18 [pid 4826] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4827] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4827] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4827] <... futex resumed>) = 0 [pid 4827] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4826] exit_group(0) = ? [pid 4827] <... futex resumed>) = ? [pid 4827] +++ exited with 0 +++ [pid 4826] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4826, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18220", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18220/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18220/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18220/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18220") = 0 mkdir("./18221", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4828 attached , child_tidptr=0x55558931b690) = 4828 [pid 4828] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4828] chdir("./18221") = 0 [pid 4828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4828] setpgid(0, 0) = 0 [pid 4828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4828] write(3, "1000", 4) = 4 [pid 4828] close(3) = 0 [pid 4828] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4828] write(1, "executing program\n", 18executing program ) = 18 [pid 4828] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4828] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4828] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4828] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4828] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4828] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4828] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4829 attached => {parent_tid=[4829]}, 88) = 4829 [pid 4829] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4829] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4829] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4828] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4828] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4829] <... futex resumed>) = 0 [pid 4829] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4829] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4829] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4828] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4828] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4829] <... futex resumed>) = 0 [pid 4829] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4829] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4829] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4828] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4828] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4829] <... futex resumed>) = 0 [pid 4829] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4829] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4829] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4828] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4828] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4829] <... futex resumed>) = 0 [pid 4829] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4829] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4829] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4828] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4828] exit_group(0) = ? [pid 4829] <... futex resumed>) = ? [pid 4829] +++ exited with 0 +++ [pid 4828] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4828, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18221", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18221/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18221/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18221") = 0 mkdir("./18222", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4830 ./strace-static-x86_64: Process 4830 attached [pid 4830] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4830] chdir("./18222") = 0 [pid 4830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4830] setpgid(0, 0) = 0 [pid 4830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4830] write(3, "1000", 4) = 4 [pid 4830] close(3) = 0 [pid 4830] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4830] write(1, "executing program\n", 18) = 18 [pid 4830] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4830] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4830] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4830] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4830] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4830] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4831 attached => {parent_tid=[4831]}, 88) = 4831 [pid 4831] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4831] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4831] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4830] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4830] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4831] <... futex resumed>) = 0 [pid 4831] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4831] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4831] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4830] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4830] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4831] <... futex resumed>) = 0 [pid 4831] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4831] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4831] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4830] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4830] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4831] <... futex resumed>) = 0 [pid 4831] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4831] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4831] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4830] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4830] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4831] <... futex resumed>) = 0 [pid 4831] write(-1, "0x0000000000000001", 18 [pid 4830] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4831] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4831] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4831] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4830] exit_group(0) = ? [pid 4831] <... futex resumed>) = ? [pid 4831] +++ exited with 0 +++ [pid 4830] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4830, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18222", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18222/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18222/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18222") = 0 mkdir("./18223", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4832 ./strace-static-x86_64: Process 4832 attached [pid 4832] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4832] chdir("./18223") = 0 [pid 4832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4832] setpgid(0, 0) = 0 [pid 4832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4832] write(3, "1000", 4) = 4 [pid 4832] close(3) = 0 [pid 4832] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4832] write(1, "executing program\n", 18executing program ) = 18 [pid 4832] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4832] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4832] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4832] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4832] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4832] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4833 attached [pid 4833] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4833] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4833] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4832] <... clone3 resumed> => {parent_tid=[4833]}, 88) = 4833 [pid 4832] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4832] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4833] <... futex resumed>) = 0 [pid 4833] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4833] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4833] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4832] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4832] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4833] <... futex resumed>) = 0 [pid 4833] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4833] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4833] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4832] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4832] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4833] <... futex resumed>) = 0 [pid 4833] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4833] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4833] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4832] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4832] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4833] <... futex resumed>) = 0 [pid 4833] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4833] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4833] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4832] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4832] exit_group(0) = ? [pid 4833] <... futex resumed>) = ? [pid 4833] +++ exited with 0 +++ [pid 4832] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4832, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18223", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18223/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18223/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18223/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18223") = 0 mkdir("./18224", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4834 ./strace-static-x86_64: Process 4834 attached [pid 4834] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4834] chdir("./18224") = 0 [pid 4834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4834] setpgid(0, 0) = 0 [pid 4834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4834] write(3, "1000", 4) = 4 [pid 4834] close(3) = 0 [pid 4834] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4834] write(1, "executing program\n", 18) = 18 [pid 4834] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4834] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4834] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4834] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4834] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4834] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4834] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4835 attached => {parent_tid=[4835]}, 88) = 4835 [pid 4834] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4834] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4834] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4835] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4835] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4835] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4835] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4834] <... futex resumed>) = 0 [pid 4834] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4834] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4835] <... futex resumed>) = 1 [pid 4835] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4835] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4834] <... futex resumed>) = 0 [pid 4834] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4834] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4835] <... futex resumed>) = 1 [pid 4835] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4835] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4834] <... futex resumed>) = 0 [pid 4834] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4834] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4835] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4835] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4834] <... futex resumed>) = 0 [pid 4834] exit_group(0) = ? [pid 4835] +++ exited with 0 +++ [pid 4834] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4834, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18224", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18224/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18224/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18224/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18224") = 0 mkdir("./18225", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4836 ./strace-static-x86_64: Process 4836 attached [pid 4836] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4836] chdir("./18225") = 0 [pid 4836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4836] setpgid(0, 0) = 0 [pid 4836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4836] write(3, "1000", 4) = 4 [pid 4836] close(3) = 0 [pid 4836] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4836] write(1, "executing program\n", 18executing program ) = 18 [pid 4836] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4836] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4836] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4836] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4836] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4836] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4837]}, 88) = 4837 [pid 4836] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4836] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4836] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4837 attached [pid 4837] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4837] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4837] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4837] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4836] <... futex resumed>) = 0 [pid 4836] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4836] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4837] <... futex resumed>) = 1 [pid 4837] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4837] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4836] <... futex resumed>) = 0 [pid 4836] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4836] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4837] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4837] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4836] <... futex resumed>) = 0 [pid 4837] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4836] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4836] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4837] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4837] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4837] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4836] <... futex resumed>) = 0 [pid 4837] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4836] exit_group(0) = ? [pid 4837] <... futex resumed>) = ? [pid 4837] +++ exited with 0 +++ [pid 4836] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4836, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18225", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18225/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18225/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18225") = 0 mkdir("./18226", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4838 ./strace-static-x86_64: Process 4838 attached [pid 4838] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4838] chdir("./18226") = 0 [pid 4838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4838] setpgid(0, 0) = 0 [pid 4838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4838] write(3, "1000", 4) = 4 [pid 4838] close(3) = 0 [pid 4838] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4838] write(1, "executing program\n", 18executing program ) = 18 [pid 4838] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4838] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4838] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4838] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4838] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4838] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4839]}, 88) = 4839 ./strace-static-x86_64: Process 4839 attached [pid 4839] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4839] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4839] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4838] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4838] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4839] <... futex resumed>) = 0 [pid 4839] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4838] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4839] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4839] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4839] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4838] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4838] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4839] <... futex resumed>) = 0 [pid 4839] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4839] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4839] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4838] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4838] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4839] <... futex resumed>) = 0 [pid 4839] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4838] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4839] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4839] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4839] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4838] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4838] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4839] <... futex resumed>) = 0 [pid 4839] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4839] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4839] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4838] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4838] exit_group(0) = ? [pid 4839] <... futex resumed>) = ? [pid 4839] +++ exited with 0 +++ [pid 4838] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4838, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18226", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18226/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18226/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18226/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18226") = 0 mkdir("./18227", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4840 ./strace-static-x86_64: Process 4840 attached [pid 4840] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4840] chdir("./18227") = 0 [pid 4840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4840] setpgid(0, 0) = 0 [pid 4840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4840] write(3, "1000", 4) = 4 [pid 4840] close(3) = 0 [pid 4840] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4840] write(1, "executing program\n", 18executing program ) = 18 [pid 4840] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4840] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4840] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4840] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4840] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4840] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4841]}, 88) = 4841 [pid 4840] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4840] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4840] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4841 attached [pid 4841] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4841] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4841] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4840] <... futex resumed>) = 0 [pid 4840] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4840] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4841] <... futex resumed>) = 1 [pid 4841] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4841] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4840] <... futex resumed>) = 0 [pid 4840] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4840] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4841] <... futex resumed>) = 1 [pid 4841] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4841] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4840] <... futex resumed>) = 0 [pid 4840] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4840] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4841] <... futex resumed>) = 1 [pid 4841] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4841] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4840] <... futex resumed>) = 0 [pid 4840] exit_group(0) = ? [pid 4841] <... futex resumed>) = ? [pid 4841] +++ exited with 0 +++ [pid 4840] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4840, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18227", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18227/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18227/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18227/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18227") = 0 mkdir("./18228", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4842 ./strace-static-x86_64: Process 4842 attached [pid 4842] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4842] chdir("./18228") = 0 [pid 4842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4842] setpgid(0, 0) = 0 [pid 4842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4842] write(3, "1000", 4) = 4 [pid 4842] close(3) = 0 [pid 4842] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4842] write(1, "executing program\n", 18executing program ) = 18 [pid 4842] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4842] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4842] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4842] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4842] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4842] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4843 attached => {parent_tid=[4843]}, 88) = 4843 [pid 4842] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4842] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4842] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4843] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4843] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4843] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4843] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4842] <... futex resumed>) = 0 [pid 4842] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4842] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4843] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4843] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4842] <... futex resumed>) = 0 [pid 4843] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4842] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4843] <... futex resumed>) = 0 [pid 4843] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4843] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4843] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4842] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4842] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4843] <... futex resumed>) = 0 [pid 4843] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4843] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4843] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4842] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4842] exit_group(0) = ? [pid 4843] <... futex resumed>) = ? [pid 4843] +++ exited with 0 +++ [pid 4842] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4842, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18228", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18228/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18228/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18228") = 0 mkdir("./18229", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4844 attached , child_tidptr=0x55558931b690) = 4844 [pid 4844] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4844] chdir("./18229") = 0 [pid 4844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4844] setpgid(0, 0) = 0 [pid 4844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4844] write(3, "1000", 4) = 4 [pid 4844] close(3) = 0 [pid 4844] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4844] write(1, "executing program\n", 18executing program ) = 18 [pid 4844] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4844] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4844] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4844] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4844] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4844] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4845 attached [pid 4845] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4845] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4845] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4844] <... clone3 resumed> => {parent_tid=[4845]}, 88) = 4845 [pid 4844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4844] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4845] <... futex resumed>) = 0 [pid 4845] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4845] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4845] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4844] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4844] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4845] <... futex resumed>) = 0 [pid 4844] <... futex resumed>) = 1 [pid 4845] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4845] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4845] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4844] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4844] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4845] <... futex resumed>) = 0 [pid 4845] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4845] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4845] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4844] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4844] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4845] <... futex resumed>) = 0 [pid 4845] write(-1, "0x0000000000000001", 18 [pid 4844] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4845] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4845] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4845] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4844] exit_group(0) = ? [pid 4845] <... futex resumed>) = ? [pid 4845] +++ exited with 0 +++ [pid 4844] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4844, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18229", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18229/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18229/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18229") = 0 mkdir("./18230", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4846 attached , child_tidptr=0x55558931b690) = 4846 [pid 4846] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4846] chdir("./18230") = 0 [pid 4846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4846] setpgid(0, 0) = 0 [pid 4846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4846] write(3, "1000", 4) = 4 [pid 4846] close(3) = 0 [pid 4846] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4846] write(1, "executing program\n", 18executing program ) = 18 [pid 4846] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4846] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4846] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4846] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4846] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4847 attached => {parent_tid=[4847]}, 88) = 4847 [pid 4847] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4847] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4846] rt_sigprocmask(SIG_SETMASK, [], [pid 4847] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4846] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4846] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4847] <... futex resumed>) = 0 [pid 4847] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4847] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4847] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4846] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4846] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4847] <... futex resumed>) = 0 [pid 4846] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4847] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4847] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4847] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4846] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4846] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4847] <... futex resumed>) = 0 [pid 4846] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4847] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4847] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4846] <... futex resumed>) = 0 [pid 4846] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4846] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4847] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4847] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4846] <... futex resumed>) = 0 [pid 4847] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4846] exit_group(0) = ? [pid 4847] <... futex resumed>) = ? [pid 4847] +++ exited with 0 +++ [pid 4846] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4846, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18230", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18230/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18230/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18230") = 0 mkdir("./18231", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4848 ./strace-static-x86_64: Process 4848 attached [pid 4848] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4848] chdir("./18231") = 0 [pid 4848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4848] setpgid(0, 0) = 0 [pid 4848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4848] write(3, "1000", 4) = 4 [pid 4848] close(3) = 0 [pid 4848] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4848] write(1, "executing program\n", 18executing program ) = 18 [pid 4848] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4848] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4848] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4848] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4848] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4849 attached => {parent_tid=[4849]}, 88) = 4849 [pid 4849] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4849] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4849] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4848] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4848] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4849] <... futex resumed>) = 0 [pid 4848] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4849] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4849] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4849] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4848] <... futex resumed>) = 0 [pid 4848] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4849] <... futex resumed>) = 0 [pid 4849] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4848] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4849] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4849] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4849] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4848] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4849] <... futex resumed>) = 0 [pid 4849] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4848] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4849] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4848] <... futex resumed>) = 0 [pid 4848] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4849] write(-1, "0x0000000000000001", 18 [pid 4848] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4849] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4849] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4848] <... futex resumed>) = 0 [pid 4849] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4848] exit_group(0) = ? [pid 4849] <... futex resumed>) = ? [pid 4849] +++ exited with 0 +++ [pid 4848] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4848, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18231", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18231/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18231/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18231") = 0 mkdir("./18232", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4850 ./strace-static-x86_64: Process 4850 attached [pid 4850] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4850] chdir("./18232") = 0 [pid 4850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4850] setpgid(0, 0) = 0 [pid 4850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4850] write(3, "1000", 4) = 4 [pid 4850] close(3) = 0 [pid 4850] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4850] write(1, "executing program\n", 18) = 18 [pid 4850] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4850] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4850] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4850] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4850] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4850] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4851 attached => {parent_tid=[4851]}, 88) = 4851 [pid 4851] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4851] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4851] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4850] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4850] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4851] <... futex resumed>) = 0 [pid 4851] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4850] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4851] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4851] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4851] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4850] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4851] <... futex resumed>) = 0 [pid 4851] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4850] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4851] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4851] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4850] <... futex resumed>) = 0 [pid 4851] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4850] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4850] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4851] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4851] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4850] <... futex resumed>) = 0 [pid 4850] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4850] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4851] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4851] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4850] <... futex resumed>) = 0 [pid 4851] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4850] exit_group(0) = ? [pid 4851] <... futex resumed>) = ? [pid 4851] +++ exited with 0 +++ [pid 4850] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4850, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18232", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18232/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18232/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18232/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18232") = 0 mkdir("./18233", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4852 ./strace-static-x86_64: Process 4852 attached [pid 4852] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4852] chdir("./18233") = 0 [pid 4852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4852] setpgid(0, 0) = 0 [pid 4852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4852] write(3, "1000", 4) = 4 [pid 4852] close(3) = 0 [pid 4852] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4852] write(1, "executing program\n", 18executing program ) = 18 [pid 4852] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4852] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4852] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4852] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4852] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4853 attached => {parent_tid=[4853]}, 88) = 4853 [pid 4853] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4852] rt_sigprocmask(SIG_SETMASK, [], [pid 4853] <... set_robust_list resumed>) = 0 [pid 4852] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4853] rt_sigprocmask(SIG_SETMASK, [], [pid 4852] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4853] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4852] <... futex resumed>) = 0 [pid 4852] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4853] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4853] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4852] <... futex resumed>) = 0 [pid 4852] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4852] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4853] <... futex resumed>) = 1 [pid 4853] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4853] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4852] <... futex resumed>) = 0 [pid 4852] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4852] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4853] <... futex resumed>) = 1 [pid 4853] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4853] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4852] <... futex resumed>) = 0 [pid 4852] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4852] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4853] <... futex resumed>) = 1 [pid 4853] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4853] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4852] <... futex resumed>) = 0 [pid 4853] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4852] exit_group(0) = ? [pid 4853] <... futex resumed>) = ? [pid 4853] +++ exited with 0 +++ [pid 4852] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4852, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18233", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18233/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18233/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18233") = 0 mkdir("./18234", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4854 ./strace-static-x86_64: Process 4854 attached [pid 4854] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4854] chdir("./18234") = 0 [pid 4854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4854] setpgid(0, 0) = 0 [pid 4854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4854] write(3, "1000", 4) = 4 [pid 4854] close(3) = 0 [pid 4854] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4854] write(1, "executing program\n", 18executing program ) = 18 [pid 4854] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4854] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4854] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4854] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4854] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4854] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4855 attached [pid 4855] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4855] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4855] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4854] <... clone3 resumed> => {parent_tid=[4855]}, 88) = 4855 [pid 4854] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4854] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4855] <... futex resumed>) = 0 [pid 4854] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4855] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4855] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4854] <... futex resumed>) = 0 [pid 4854] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4854] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4855] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4855] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4854] <... futex resumed>) = 0 [pid 4854] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4854] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4855] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4855] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4854] <... futex resumed>) = 0 [pid 4854] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4854] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4855] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4855] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4854] <... futex resumed>) = 0 [pid 4854] exit_group(0) = ? [pid 4855] +++ exited with 0 +++ [pid 4854] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4854, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18234", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18234/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18234/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18234") = 0 mkdir("./18235", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4856 ./strace-static-x86_64: Process 4856 attached [pid 4856] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4856] chdir("./18235") = 0 [pid 4856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4856] setpgid(0, 0) = 0 [pid 4856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4856] write(3, "1000", 4) = 4 [pid 4856] close(3) = 0 [pid 4856] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4856] write(1, "executing program\n", 18) = 18 [pid 4856] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4856] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4856] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4856] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4856] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4856] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4857 attached => {parent_tid=[4857]}, 88) = 4857 [pid 4857] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4857] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4857] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4856] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4856] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4857] <... futex resumed>) = 0 [pid 4857] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4857] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4857] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4856] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4856] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4857] <... futex resumed>) = 0 [pid 4856] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4857] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4857] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4856] <... futex resumed>) = 0 [pid 4856] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4857] <... futex resumed>) = 1 [pid 4856] <... futex resumed>) = 0 [pid 4857] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4856] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4857] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4857] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4856] <... futex resumed>) = 0 [pid 4856] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4856] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4857] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4857] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4856] <... futex resumed>) = 0 [pid 4856] exit_group(0 [pid 4857] ????( [pid 4856] <... exit_group resumed>) = ? [pid 4857] <... ???? resumed>) = ? [pid 4857] +++ exited with 0 +++ [pid 4856] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4856, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18235", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18235/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18235/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18235") = 0 mkdir("./18236", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4858 ./strace-static-x86_64: Process 4858 attached [pid 4858] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4858] chdir("./18236") = 0 [pid 4858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4858] setpgid(0, 0) = 0 [pid 4858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4858] write(3, "1000", 4) = 4 [pid 4858] close(3) = 0 [pid 4858] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4858] write(1, "executing program\n", 18executing program ) = 18 [pid 4858] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4858] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4858] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4858] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4859 attached [pid 4859] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4858] <... clone3 resumed> => {parent_tid=[4859]}, 88) = 4859 [pid 4859] <... set_robust_list resumed>) = 0 [pid 4858] rt_sigprocmask(SIG_SETMASK, [], [pid 4859] rt_sigprocmask(SIG_SETMASK, [], [pid 4858] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4859] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4858] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4858] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4859] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4859] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4858] <... futex resumed>) = 0 [pid 4859] <... futex resumed>) = 1 [pid 4858] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4859] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4858] <... futex resumed>) = 0 [pid 4858] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4859] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4859] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4858] <... futex resumed>) = 0 [pid 4859] <... futex resumed>) = 1 [pid 4858] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4859] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4858] <... futex resumed>) = 0 [pid 4858] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4859] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4859] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4858] <... futex resumed>) = 0 [pid 4859] <... futex resumed>) = 1 [pid 4858] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4858] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4859] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4859] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4858] <... futex resumed>) = 0 [pid 4859] <... futex resumed>) = 1 [pid 4858] exit_group(0 [pid 4859] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4858] <... exit_group resumed>) = ? [pid 4859] <... futex resumed>) = ? [pid 4859] +++ exited with 0 +++ [pid 4858] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4858, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18236", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18236/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18236/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18236") = 0 mkdir("./18237", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4860 ./strace-static-x86_64: Process 4860 attached [pid 4860] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4860] chdir("./18237") = 0 [pid 4860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4860] setpgid(0, 0) = 0 [pid 4860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4860] write(3, "1000", 4) = 4 [pid 4860] close(3) = 0 [pid 4860] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4860] write(1, "executing program\n", 18) = 18 [pid 4860] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4860] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4860] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4860] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4860] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4860] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4860] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4861 attached [pid 4861] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4861] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4861] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4860] <... clone3 resumed> => {parent_tid=[4861]}, 88) = 4861 [pid 4860] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4860] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4861] <... futex resumed>) = 0 [pid 4861] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4861] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4861] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4860] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4860] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4861] <... futex resumed>) = 0 [pid 4861] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4861] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4861] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4860] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4860] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4861] <... futex resumed>) = 0 [pid 4861] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4861] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4861] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4860] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4860] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4861] <... futex resumed>) = 0 [pid 4860] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4861] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4861] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4860] <... futex resumed>) = 0 [pid 4861] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4860] exit_group(0) = ? [pid 4861] <... futex resumed>) = ? [pid 4861] +++ exited with 0 +++ [pid 4860] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4860, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18237", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18237/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18237/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18237/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18237") = 0 mkdir("./18238", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4862 ./strace-static-x86_64: Process 4862 attached [pid 4862] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4862] chdir("./18238") = 0 [pid 4862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4862] setpgid(0, 0) = 0 [pid 4862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4862] write(3, "1000", 4) = 4 [pid 4862] close(3) = 0 [pid 4862] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4862] write(1, "executing program\n", 18) = 18 [pid 4862] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4862] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4862] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4862] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4862] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4862] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4863 attached [pid 4863] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4862] <... clone3 resumed> => {parent_tid=[4863]}, 88) = 4863 [pid 4863] <... set_robust_list resumed>) = 0 [pid 4863] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4863] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4862] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4863] <... futex resumed>) = 0 [pid 4863] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4863] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4863] <... futex resumed>) = 0 [pid 4862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4863] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4862] <... futex resumed>) = 0 [pid 4863] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4863] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4862] <... futex resumed>) = 0 [pid 4862] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4862] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4863] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4863] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4862] <... futex resumed>) = 0 [pid 4863] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4862] exit_group(0) = ? [pid 4863] <... futex resumed>) = ? [pid 4863] +++ exited with 0 +++ [pid 4862] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4862, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18238", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18238/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18238/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18238") = 0 mkdir("./18239", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4864 ./strace-static-x86_64: Process 4864 attached [pid 4864] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4864] chdir("./18239") = 0 [pid 4864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4864] setpgid(0, 0) = 0 [pid 4864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4864] write(3, "1000", 4) = 4 [pid 4864] close(3) = 0 [pid 4864] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4864] write(1, "executing program\n", 18executing program ) = 18 [pid 4864] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4864] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4864] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4864] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4865 attached => {parent_tid=[4865]}, 88) = 4865 [pid 4865] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4865] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4865] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4865] <... futex resumed>) = 0 [pid 4864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4865] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4865] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4865] <... futex resumed>) = 0 [pid 4865] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4865] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4865] <... futex resumed>) = 0 [pid 4865] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4865] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4865] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4864] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4865] <... futex resumed>) = 0 [pid 4865] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4865] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4865] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4864] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4864] exit_group(0) = ? [pid 4865] <... futex resumed>) = ? [pid 4865] +++ exited with 0 +++ [pid 4864] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4864, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18239", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18239/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18239/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18239") = 0 mkdir("./18240", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4866 attached , child_tidptr=0x55558931b690) = 4866 [pid 4866] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4866] chdir("./18240") = 0 [pid 4866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4866] setpgid(0, 0) = 0 [pid 4866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4866] write(3, "1000", 4) = 4 [pid 4866] close(3) = 0 [pid 4866] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4866] write(1, "executing program\n", 18) = 18 [pid 4866] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4866] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4866] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4867 attached [pid 4867] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4866] <... clone3 resumed> => {parent_tid=[4867]}, 88) = 4867 [pid 4867] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4867] <... futex resumed>) = 0 [pid 4867] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4866] <... futex resumed>) = 0 [pid 4867] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4867] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4866] <... futex resumed>) = 0 [pid 4867] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4867] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4866] <... futex resumed>) = 0 [pid 4866] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4866] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4867] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4867] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4866] <... futex resumed>) = 0 [pid 4867] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4866] exit_group(0) = ? [pid 4867] <... futex resumed>) = ? [pid 4867] +++ exited with 0 +++ [pid 4866] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4866, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18240", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18240/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18240/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18240/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18240") = 0 mkdir("./18241", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4868 ./strace-static-x86_64: Process 4868 attached [pid 4868] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4868] chdir("./18241") = 0 [pid 4868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4868] setpgid(0, 0) = 0 [pid 4868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4868] write(3, "1000", 4) = 4 [pid 4868] close(3) = 0 [pid 4868] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4868] write(1, "executing program\n", 18executing program ) = 18 [pid 4868] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4868] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4868] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4868] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4868] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4868] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4869 attached => {parent_tid=[4869]}, 88) = 4869 [pid 4869] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4868] rt_sigprocmask(SIG_SETMASK, [], [pid 4869] <... set_robust_list resumed>) = 0 [pid 4868] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4869] rt_sigprocmask(SIG_SETMASK, [], [pid 4868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4869] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4868] <... futex resumed>) = 0 [pid 4868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4869] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4868] <... futex resumed>) = 0 [pid 4869] <... futex resumed>) = 1 [pid 4868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4869] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4868] <... futex resumed>) = 0 [pid 4868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4869] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4868] <... futex resumed>) = 0 [pid 4869] <... futex resumed>) = 1 [pid 4868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4869] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4868] <... futex resumed>) = 0 [pid 4868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4869] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4868] <... futex resumed>) = 0 [pid 4869] <... futex resumed>) = 1 [pid 4868] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4868] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4869] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4869] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4868] <... futex resumed>) = 0 [pid 4869] <... futex resumed>) = 1 [pid 4868] exit_group(0 [pid 4869] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4868] <... exit_group resumed>) = ? [pid 4869] <... futex resumed>) = ? [pid 4869] +++ exited with 0 +++ [pid 4868] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4868, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18241", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18241/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18241/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18241/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18241") = 0 mkdir("./18242", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4870 ./strace-static-x86_64: Process 4870 attached [pid 4870] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4870] chdir("./18242") = 0 [pid 4870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4870] setpgid(0, 0) = 0 [pid 4870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4870] write(3, "1000", 4) = 4 [pid 4870] close(3) = 0 [pid 4870] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4870] write(1, "executing program\n", 18) = 18 [pid 4870] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4870] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4870] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4870] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4870] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4870] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4871 attached => {parent_tid=[4871]}, 88) = 4871 [pid 4871] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4871] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4870] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4871] <... futex resumed>) = 0 [pid 4871] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4871] <... futex resumed>) = 0 [pid 4871] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4871] <... futex resumed>) = 0 [pid 4870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4871] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4870] <... futex resumed>) = 0 [pid 4870] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4871] <... futex resumed>) = 0 [pid 4870] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4871] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4871] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4870] <... futex resumed>) = 0 [pid 4871] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4870] exit_group(0) = ? [pid 4871] <... futex resumed>) = ? [pid 4871] +++ exited with 0 +++ [pid 4870] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4870, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18242", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18242/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18242/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18242/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18242") = 0 mkdir("./18243", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4872 ./strace-static-x86_64: Process 4872 attached [pid 4872] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4872] chdir("./18243") = 0 [pid 4872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4872] setpgid(0, 0) = 0 [pid 4872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4872] write(3, "1000", 4) = 4 [pid 4872] close(3) = 0 [pid 4872] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4872] write(1, "executing program\n", 18) = 18 [pid 4872] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4872] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4872] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4872] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4872] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4872] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4873 attached => {parent_tid=[4873]}, 88) = 4873 [pid 4873] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4872] rt_sigprocmask(SIG_SETMASK, [], [pid 4873] <... set_robust_list resumed>) = 0 [pid 4873] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4873] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4872] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4873] <... futex resumed>) = 0 [pid 4873] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4873] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4873] <... futex resumed>) = 0 [pid 4872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4873] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4873] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4872] <... futex resumed>) = 0 [pid 4872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4873] <... futex resumed>) = 0 [pid 4872] <... futex resumed>) = 1 [pid 4873] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4873] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4872] <... futex resumed>) = 0 [pid 4872] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4872] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4873] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4873] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4872] <... futex resumed>) = 0 [pid 4873] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4872] exit_group(0) = ? [pid 4873] <... futex resumed>) = ? [pid 4873] +++ exited with 0 +++ [pid 4872] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4872, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18243", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18243/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18243/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18243") = 0 mkdir("./18244", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4874 ./strace-static-x86_64: Process 4874 attached [pid 4874] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4874] chdir("./18244") = 0 [pid 4874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4874] setpgid(0, 0) = 0 [pid 4874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4874] write(3, "1000", 4) = 4 [pid 4874] close(3) = 0 [pid 4874] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4874] write(1, "executing program\n", 18) = 18 [pid 4874] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4874] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4874] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4875 attached => {parent_tid=[4875]}, 88) = 4875 [pid 4875] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4875] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4875] <... futex resumed>) = 0 [pid 4875] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4875] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4875] <... futex resumed>) = 0 [pid 4874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4875] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4874] <... futex resumed>) = 0 [pid 4875] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4875] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4874] <... futex resumed>) = 0 [pid 4874] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4874] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4875] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4875] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4874] <... futex resumed>) = 0 [pid 4874] exit_group(0) = ? [pid 4875] +++ exited with 0 +++ [pid 4874] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4874, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18244", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18244", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18244/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18244/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18244") = 0 mkdir("./18245", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4876 ./strace-static-x86_64: Process 4876 attached [pid 4876] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4876] chdir("./18245") = 0 [pid 4876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4876] setpgid(0, 0) = 0 [pid 4876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4876] write(3, "1000", 4) = 4 [pid 4876] close(3) = 0 [pid 4876] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4876] write(1, "executing program\n", 18executing program ) = 18 [pid 4876] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4876] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4876] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4876] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4876] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4877 attached [pid 4877] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4876] <... clone3 resumed> => {parent_tid=[4877]}, 88) = 4877 [pid 4877] <... set_robust_list resumed>) = 0 [pid 4877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4877] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4876] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4877] <... futex resumed>) = 0 [pid 4877] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4877] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4877] <... futex resumed>) = 0 [pid 4877] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4877] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4877] <... futex resumed>) = 0 [pid 4877] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4877] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4876] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4877] <... futex resumed>) = 0 [pid 4876] <... futex resumed>) = 1 [pid 4876] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4877] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4877] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4876] <... futex resumed>) = 0 [pid 4877] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4876] exit_group(0) = ? [pid 4877] <... futex resumed>) = ? [pid 4877] +++ exited with 0 +++ [pid 4876] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4876, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18245", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18245/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18245/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18245/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18245") = 0 mkdir("./18246", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4878 ./strace-static-x86_64: Process 4878 attached [pid 4878] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4878] chdir("./18246") = 0 [pid 4878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4878] setpgid(0, 0) = 0 [pid 4878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4878] write(3, "1000", 4) = 4 [pid 4878] close(3) = 0 [pid 4878] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4878] write(1, "executing program\n", 18executing program ) = 18 [pid 4878] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4878] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4878] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4878] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4878] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4879 attached [pid 4879] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4878] <... clone3 resumed> => {parent_tid=[4879]}, 88) = 4879 [pid 4879] <... set_robust_list resumed>) = 0 [pid 4879] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4879] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4879] <... futex resumed>) = 0 [pid 4879] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4879] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4879] <... futex resumed>) = 0 [pid 4879] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4879] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4879] <... futex resumed>) = 0 [pid 4878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4879] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4878] <... futex resumed>) = 0 [pid 4878] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4878] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4879] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4879] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4878] <... futex resumed>) = 0 [pid 4879] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4878] exit_group(0) = ? [pid 4879] <... futex resumed>) = ? [pid 4879] +++ exited with 0 +++ [pid 4878] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4878, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18246", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18246", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18246/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18246/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18246/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18246") = 0 mkdir("./18247", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4880 ./strace-static-x86_64: Process 4880 attached [pid 4880] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4880] chdir("./18247") = 0 [pid 4880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4880] setpgid(0, 0) = 0 [pid 4880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4880] write(3, "1000", 4) = 4 [pid 4880] close(3) = 0 [pid 4880] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4880] write(1, "executing program\n", 18) = 18 [pid 4880] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4880] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4880] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4880] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4880] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4880] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4881 attached [pid 4881] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4881] rt_sigprocmask(SIG_SETMASK, [], [pid 4880] <... clone3 resumed> => {parent_tid=[4881]}, 88) = 4881 [pid 4881] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4880] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4881] <... futex resumed>) = 0 [pid 4881] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4881] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4881] <... futex resumed>) = 0 [pid 4881] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4881] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4881] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4880] <... futex resumed>) = 0 [pid 4881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4880] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4881] <... futex resumed>) = 0 [pid 4880] <... futex resumed>) = 1 [pid 4880] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4881] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4881] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4880] <... futex resumed>) = 0 [pid 4881] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4880] exit_group(0) = ? [pid 4881] <... futex resumed>) = ? [pid 4881] +++ exited with 0 +++ [pid 4880] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4880, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18247", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18247", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18247/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18247/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18247") = 0 mkdir("./18248", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4882 ./strace-static-x86_64: Process 4882 attached [pid 4882] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4882] chdir("./18248") = 0 [pid 4882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4882] setpgid(0, 0) = 0 [pid 4882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4882] write(3, "1000", 4) = 4 [pid 4882] close(3) = 0 [pid 4882] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4882] write(1, "executing program\n", 18executing program ) = 18 [pid 4882] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4882] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4882] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4882] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4882] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4882] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4883 attached [pid 4883] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4882] <... clone3 resumed> => {parent_tid=[4883]}, 88) = 4883 [pid 4883] <... set_robust_list resumed>) = 0 [pid 4883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4883] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4882] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4883] <... futex resumed>) = 0 [pid 4883] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4883] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4883] <... futex resumed>) = 0 [pid 4882] <... futex resumed>) = 1 [pid 4883] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4883] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4882] <... futex resumed>) = 0 [pid 4883] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4883] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4882] <... futex resumed>) = 0 [pid 4883] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4882] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4883] <... futex resumed>) = 0 [pid 4882] <... futex resumed>) = 1 [pid 4882] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4883] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4883] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4883] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4882] <... futex resumed>) = 0 [pid 4882] exit_group(0) = ? [pid 4883] <... futex resumed>) = ? [pid 4883] +++ exited with 0 +++ [pid 4882] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4882, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18248", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18248", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18248/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18248/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18248") = 0 mkdir("./18249", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4884 ./strace-static-x86_64: Process 4884 attached [pid 4884] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4884] chdir("./18249") = 0 [pid 4884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4884] setpgid(0, 0) = 0 [pid 4884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4884] write(3, "1000", 4) = 4 [pid 4884] close(3) = 0 [pid 4884] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4884] write(1, "executing program\n", 18executing program ) = 18 [pid 4884] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4884] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4884] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4884] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4885 attached => {parent_tid=[4885]}, 88) = 4885 [pid 4885] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4884] rt_sigprocmask(SIG_SETMASK, [], [pid 4885] <... set_robust_list resumed>) = 0 [pid 4884] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4885] rt_sigprocmask(SIG_SETMASK, [], [pid 4884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4885] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4884] <... futex resumed>) = 0 [pid 4884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4885] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4884] <... futex resumed>) = 0 [pid 4885] <... futex resumed>) = 1 [pid 4884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4885] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4884] <... futex resumed>) = 0 [pid 4884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4885] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4884] <... futex resumed>) = 0 [pid 4885] <... futex resumed>) = 1 [pid 4884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4885] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4884] <... futex resumed>) = 0 [pid 4884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4885] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4884] <... futex resumed>) = 0 [pid 4885] <... futex resumed>) = 1 [pid 4884] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4885] write(-1, "0x0000000000000001", 18 [pid 4884] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4885] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4885] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4884] <... futex resumed>) = 0 [pid 4885] <... futex resumed>) = 1 [pid 4884] exit_group(0 [pid 4885] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 (errno 18446744073709551414) [pid 4884] <... exit_group resumed>) = ? [pid 4885] +++ exited with 0 +++ [pid 4884] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4884, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18249", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18249/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18249/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18249/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18249") = 0 mkdir("./18250", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4886 ./strace-static-x86_64: Process 4886 attached [pid 4886] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4886] chdir("./18250") = 0 [pid 4886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4886] setpgid(0, 0) = 0 [pid 4886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4886] write(3, "1000", 4) = 4 [pid 4886] close(3) = 0 [pid 4886] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4886] write(1, "executing program\n", 18executing program ) = 18 [pid 4886] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4886] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4886] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4886] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4886] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4886] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4887 attached => {parent_tid=[4887]}, 88) = 4887 [pid 4887] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4886] rt_sigprocmask(SIG_SETMASK, [], [pid 4887] <... set_robust_list resumed>) = 0 [pid 4886] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4887] rt_sigprocmask(SIG_SETMASK, [], [pid 4886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4887] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4886] <... futex resumed>) = 0 [pid 4886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4887] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4886] <... futex resumed>) = 0 [pid 4887] <... futex resumed>) = 1 [pid 4886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4887] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4886] <... futex resumed>) = 0 [pid 4886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4887] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4886] <... futex resumed>) = 0 [pid 4887] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4887] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4886] <... futex resumed>) = 0 [pid 4886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4887] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4886] <... futex resumed>) = 0 [pid 4887] <... futex resumed>) = 1 [pid 4886] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4887] write(-1, "0x0000000000000001", 18 [pid 4886] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4887] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4887] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4886] <... futex resumed>) = 0 [pid 4887] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4886] exit_group(0) = ? [pid 4887] <... futex resumed>) = ? [pid 4887] +++ exited with 0 +++ [pid 4886] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4886, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18250", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18250/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18250/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18250") = 0 mkdir("./18251", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4888 ./strace-static-x86_64: Process 4888 attached [pid 4888] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4888] chdir("./18251") = 0 [pid 4888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4888] setpgid(0, 0) = 0 [pid 4888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4888] write(3, "1000", 4) = 4 [pid 4888] close(3) = 0 [pid 4888] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4888] write(1, "executing program\n", 18executing program ) = 18 [pid 4888] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4888] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4888] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4888] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4889 attached [pid 4889] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4889] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4889] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4888] <... clone3 resumed> => {parent_tid=[4889]}, 88) = 4889 [pid 4888] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4889] <... futex resumed>) = 0 [pid 4889] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4889] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4889] <... futex resumed>) = 0 [pid 4889] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4889] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4889] <... futex resumed>) = 0 [pid 4889] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4888] <... futex resumed>) = 0 [pid 4888] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4888] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4889] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4889] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4888] <... futex resumed>) = 0 [pid 4888] exit_group(0) = ? [pid 4889] +++ exited with 0 +++ [pid 4888] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4888, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18251", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18251/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18251/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18251") = 0 mkdir("./18252", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4890 ./strace-static-x86_64: Process 4890 attached [pid 4890] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4890] chdir("./18252") = 0 [pid 4890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4890] setpgid(0, 0) = 0 [pid 4890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4890] write(3, "1000", 4) = 4 [pid 4890] close(3) = 0 [pid 4890] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4890] write(1, "executing program\n", 18executing program ) = 18 [pid 4890] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4890] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4890] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4891 attached => {parent_tid=[4891]}, 88) = 4891 [pid 4891] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4891] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4891] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4891] <... futex resumed>) = 0 [pid 4891] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4891] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4891] <... futex resumed>) = 0 [pid 4891] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4891] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4891] <... futex resumed>) = 0 [pid 4891] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4891] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4890] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4891] <... futex resumed>) = 0 [pid 4891] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4891] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4891] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4890] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4890] exit_group(0) = ? [pid 4891] <... futex resumed>) = ? [pid 4891] +++ exited with 0 +++ [pid 4890] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4890, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18252", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18252", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18252/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18252/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18252") = 0 mkdir("./18253", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4892 attached , child_tidptr=0x55558931b690) = 4892 [pid 4892] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4892] chdir("./18253") = 0 [pid 4892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4892] setpgid(0, 0) = 0 [pid 4892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4892] write(3, "1000", 4) = 4 [pid 4892] close(3) = 0 [pid 4892] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4892] write(1, "executing program\n", 18executing program ) = 18 [pid 4892] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4892] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4892] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4892] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4892] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4892] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4894 attached => {parent_tid=[4894]}, 88) = 4894 [pid 4894] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4894] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4894] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4894] <... futex resumed>) = 0 [pid 4894] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4894] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4894] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4894] <... futex resumed>) = 0 [pid 4894] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4894] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4894] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4894] <... futex resumed>) = 0 [pid 4894] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4894] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4894] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4892] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4894] <... futex resumed>) = 0 [pid 4892] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4894] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4894] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4892] <... futex resumed>) = 0 [pid 4894] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4892] exit_group(0) = ? [pid 4894] <... futex resumed>) = 231 [pid 4894] +++ exited with 0 +++ [pid 4892] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4892, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18253", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18253/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18253/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18253/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18253") = 0 mkdir("./18254", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4895 ./strace-static-x86_64: Process 4895 attached [pid 4895] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4895] chdir("./18254") = 0 [pid 4895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4895] setpgid(0, 0) = 0 [pid 4895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4895] write(3, "1000", 4) = 4 [pid 4895] close(3) = 0 [pid 4895] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4895] write(1, "executing program\n", 18executing program ) = 18 [pid 4895] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4895] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4895] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4895] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4895] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4895] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4896 attached => {parent_tid=[4896]}, 88) = 4896 [pid 4896] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4895] rt_sigprocmask(SIG_SETMASK, [], [pid 4896] <... set_robust_list resumed>) = 0 [pid 4895] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4896] rt_sigprocmask(SIG_SETMASK, [], [pid 4895] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4896] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4895] <... futex resumed>) = 0 [pid 4895] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4896] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4896] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4895] <... futex resumed>) = 0 [pid 4896] <... futex resumed>) = 1 [pid 4895] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4896] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4895] <... futex resumed>) = 0 [pid 4895] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4896] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4896] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4895] <... futex resumed>) = 0 [pid 4896] <... futex resumed>) = 1 [pid 4895] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4896] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4895] <... futex resumed>) = 0 [pid 4895] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4896] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4896] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4895] <... futex resumed>) = 0 [pid 4896] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4895] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4895] <... futex resumed>) = 0 [pid 4895] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4896] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4896] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4895] <... futex resumed>) = 0 [pid 4896] <... futex resumed>) = 1 [pid 4895] exit_group(0 [pid 4896] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4895] <... exit_group resumed>) = ? [pid 4896] <... futex resumed>) = ? [pid 4896] +++ exited with 0 +++ [pid 4895] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4895, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18254", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18254", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18254/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18254/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18254") = 0 mkdir("./18255", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4897 ./strace-static-x86_64: Process 4897 attached [pid 4897] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4897] chdir("./18255") = 0 [pid 4897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4897] setpgid(0, 0) = 0 [pid 4897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4897] write(3, "1000", 4) = 4 [pid 4897] close(3) = 0 [pid 4897] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4897] write(1, "executing program\n", 18executing program ) = 18 [pid 4897] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4897] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4897] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4897] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4897] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4897] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4897] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4898]}, 88) = 4898 [pid 4897] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4897] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4897] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4898 attached [pid 4898] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4898] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4898] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4897] <... futex resumed>) = 0 [pid 4897] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4897] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4898] <... futex resumed>) = 1 [pid 4898] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4898] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4897] <... futex resumed>) = 0 [pid 4897] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4897] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4898] <... futex resumed>) = 1 [pid 4898] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4898] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4897] <... futex resumed>) = 0 [pid 4897] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4897] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4898] <... futex resumed>) = 1 [pid 4898] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4898] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4897] <... futex resumed>) = 0 [pid 4897] exit_group(0) = ? [pid 4898] <... futex resumed>) = ? [pid 4898] +++ exited with 0 +++ [pid 4897] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4897, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18255", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18255/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18255/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18255/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18255") = 0 mkdir("./18256", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4899 ./strace-static-x86_64: Process 4899 attached [pid 4899] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4899] chdir("./18256") = 0 [pid 4899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4899] setpgid(0, 0) = 0 [pid 4899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4899] write(3, "1000", 4) = 4 [pid 4899] close(3) = 0 [pid 4899] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4899] write(1, "executing program\n", 18executing program ) = 18 [pid 4899] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4899] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4899] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4899] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4899] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4899] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4900 attached => {parent_tid=[4900]}, 88) = 4900 [pid 4900] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4899] rt_sigprocmask(SIG_SETMASK, [], [pid 4900] <... set_robust_list resumed>) = 0 [pid 4899] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4900] rt_sigprocmask(SIG_SETMASK, [], [pid 4899] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4900] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4899] <... futex resumed>) = 0 [pid 4899] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4900] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4899] <... futex resumed>) = 0 [pid 4900] <... futex resumed>) = 1 [pid 4899] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4900] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4899] <... futex resumed>) = 0 [pid 4899] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4900] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4899] <... futex resumed>) = 0 [pid 4900] <... futex resumed>) = 1 [pid 4899] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4900] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4899] <... futex resumed>) = 0 [pid 4899] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4900] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4899] <... futex resumed>) = 0 [pid 4900] <... futex resumed>) = 1 [pid 4899] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4899] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4900] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4900] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4899] <... futex resumed>) = 0 [pid 4899] exit_group(0) = ? [pid 4900] <... futex resumed>) = ? [pid 4900] +++ exited with 0 +++ [pid 4899] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4899, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18256", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18256", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18256/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18256/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18256") = 0 mkdir("./18257", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4901 ./strace-static-x86_64: Process 4901 attached [pid 4901] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4901] chdir("./18257") = 0 [pid 4901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4901] setpgid(0, 0) = 0 [pid 4901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4901] write(3, "1000", 4) = 4 [pid 4901] close(3) = 0 [pid 4901] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4901] write(1, "executing program\n", 18) = 18 [pid 4901] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4901] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4901] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4902 attached => {parent_tid=[4902]}, 88) = 4902 [pid 4902] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4902] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4902] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4901] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4902] <... futex resumed>) = 0 [pid 4901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4902] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4902] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4902] <... futex resumed>) = 0 [pid 4902] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4901] <... futex resumed>) = 0 [pid 4901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4902] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4901] <... futex resumed>) = 0 [pid 4901] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4901] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4902] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4902] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4901] <... futex resumed>) = 0 [pid 4901] exit_group(0) = ? [pid 4902] +++ exited with 0 +++ [pid 4901] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4901, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18257", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18257", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18257/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18257/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18257") = 0 mkdir("./18258", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4903 ./strace-static-x86_64: Process 4903 attached [pid 4903] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4903] chdir("./18258") = 0 [pid 4903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4903] setpgid(0, 0) = 0 [pid 4903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4903] write(3, "1000", 4) = 4 [pid 4903] close(3) = 0 [pid 4903] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4903] write(1, "executing program\n", 18executing program ) = 18 [pid 4903] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4903] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4903] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4903] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4903] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4903] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4904]}, 88) = 4904 ./strace-static-x86_64: Process 4904 attached [pid 4904] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4904] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4904] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4904] <... futex resumed>) = 0 [pid 4904] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4904] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4904] <... futex resumed>) = 0 [pid 4904] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4903] <... futex resumed>) = 0 [pid 4904] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4904] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4903] <... futex resumed>) = 0 [pid 4903] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4903] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4904] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4904] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4903] <... futex resumed>) = 0 [pid 4904] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4903] exit_group(0) = ? [pid 4904] <... futex resumed>) = ? [pid 4904] +++ exited with 0 +++ [pid 4903] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4903, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18258", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18258/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18258/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18258/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18258") = 0 mkdir("./18259", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4905 ./strace-static-x86_64: Process 4905 attached [pid 4905] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4905] chdir("./18259") = 0 [pid 4905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4905] setpgid(0, 0) = 0 [pid 4905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4905] write(3, "1000", 4) = 4 [pid 4905] close(3) = 0 [pid 4905] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4905] write(1, "executing program\n", 18executing program ) = 18 [pid 4905] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4905] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4905] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4905] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4905] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4905] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4906 attached => {parent_tid=[4906]}, 88) = 4906 [pid 4906] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4906] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4905] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4906] <... futex resumed>) = 0 [pid 4906] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4906] <... futex resumed>) = 0 [pid 4906] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4906] <... futex resumed>) = 0 [pid 4906] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4905] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4906] <... futex resumed>) = 0 [pid 4906] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4906] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4906] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4905] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4905] exit_group(0) = ? [pid 4906] <... futex resumed>) = ? [pid 4906] +++ exited with 0 +++ [pid 4905] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4905, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18259", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18259", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18259/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18259/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18259/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18259") = 0 mkdir("./18260", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4907 ./strace-static-x86_64: Process 4907 attached [pid 4907] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4907] chdir("./18260") = 0 [pid 4907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4907] setpgid(0, 0) = 0 [pid 4907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4907] write(3, "1000", 4) = 4 [pid 4907] close(3) = 0 [pid 4907] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4907] write(1, "executing program\n", 18executing program ) = 18 [pid 4907] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4907] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4907] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4908 attached => {parent_tid=[4908]}, 88) = 4908 [pid 4908] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4908] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4907] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4908] <... futex resumed>) = 0 [pid 4908] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4908] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4908] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4907] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4908] <... futex resumed>) = 0 [pid 4908] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4908] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4907] <... futex resumed>) = 0 [pid 4907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4908] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4907] <... futex resumed>) = 0 [pid 4907] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4907] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4908] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4908] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4907] <... futex resumed>) = 0 [pid 4907] exit_group(0) = ? [pid 4908] +++ exited with 0 +++ [pid 4907] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4907, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18260", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18260", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18260/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18260/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18260/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18260") = 0 mkdir("./18261", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4909 ./strace-static-x86_64: Process 4909 attached [pid 4909] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4909] chdir("./18261") = 0 [pid 4909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4909] setpgid(0, 0) = 0 [pid 4909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4909] write(3, "1000", 4) = 4 [pid 4909] close(3) = 0 [pid 4909] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4909] write(1, "executing program\n", 18executing program ) = 18 [pid 4909] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4909] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4909] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4909] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4909] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4909] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4909] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4910 attached => {parent_tid=[4910]}, 88) = 4910 [pid 4910] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4910] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4910] <... futex resumed>) = 0 [pid 4910] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4910] <... futex resumed>) = 0 [pid 4910] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4910] <... futex resumed>) = 0 [pid 4910] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4909] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4910] <... futex resumed>) = 0 [pid 4910] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4910] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4910] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4909] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4909] exit_group(0) = ? [pid 4910] <... futex resumed>) = ? [pid 4910] +++ exited with 0 +++ [pid 4909] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4909, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18261", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18261", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18261/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18261/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18261/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18261") = 0 mkdir("./18262", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4911 ./strace-static-x86_64: Process 4911 attached [pid 4911] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4911] chdir("./18262") = 0 [pid 4911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4911] setpgid(0, 0) = 0 [pid 4911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4911] write(3, "1000", 4) = 4 [pid 4911] close(3) = 0 [pid 4911] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4911] write(1, "executing program\n", 18) = 18 [pid 4911] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4911] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4911] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4911] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4911] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4912 attached => {parent_tid=[4912]}, 88) = 4912 [pid 4912] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4912] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4911] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4912] <... futex resumed>) = 0 [pid 4912] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4912] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4912] <... futex resumed>) = 0 [pid 4911] <... futex resumed>) = 1 [pid 4912] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4912] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4911] <... futex resumed>) = 0 [pid 4912] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4912] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4911] <... futex resumed>) = 0 [pid 4911] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4911] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4912] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4912] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4911] <... futex resumed>) = 0 [pid 4912] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4911] exit_group(0) = ? [pid 4912] <... futex resumed>) = ? [pid 4912] +++ exited with 0 +++ [pid 4911] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4911, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18262", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18262", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18262/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18262/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18262/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18262") = 0 mkdir("./18263", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4913 ./strace-static-x86_64: Process 4913 attached [pid 4913] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4913] chdir("./18263") = 0 [pid 4913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4913] setpgid(0, 0) = 0 [pid 4913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4913] write(3, "1000", 4) = 4 [pid 4913] close(3) = 0 [pid 4913] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4913] write(1, "executing program\n", 18executing program ) = 18 [pid 4913] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4913] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4913] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4913] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4913] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4913] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4914 attached => {parent_tid=[4914]}, 88) = 4914 [pid 4914] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4913] rt_sigprocmask(SIG_SETMASK, [], [pid 4914] <... set_robust_list resumed>) = 0 [pid 4913] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4914] rt_sigprocmask(SIG_SETMASK, [], [pid 4913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4914] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4913] <... futex resumed>) = 0 [pid 4913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4914] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4913] <... futex resumed>) = 0 [pid 4914] <... futex resumed>) = 1 [pid 4913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4914] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4913] <... futex resumed>) = 0 [pid 4913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4914] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4913] <... futex resumed>) = 0 [pid 4914] <... futex resumed>) = 1 [pid 4913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4914] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4913] <... futex resumed>) = 0 [pid 4914] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4914] <... futex resumed>) = 0 [pid 4913] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4913] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4914] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4914] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4913] <... futex resumed>) = 0 [pid 4914] <... futex resumed>) = 1 [pid 4913] exit_group(0 [pid 4914] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4913] <... exit_group resumed>) = ? [pid 4914] <... futex resumed>) = ? [pid 4914] +++ exited with 0 +++ [pid 4913] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4913, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18263", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18263", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18263/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18263/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18263/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18263") = 0 mkdir("./18264", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4915 ./strace-static-x86_64: Process 4915 attached [pid 4915] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4915] chdir("./18264") = 0 [pid 4915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4915] setpgid(0, 0) = 0 [pid 4915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4915] write(3, "1000", 4) = 4 [pid 4915] close(3) = 0 [pid 4915] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4915] write(1, "executing program\n", 18executing program ) = 18 [pid 4915] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4915] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4915] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4915] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4915] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4916 attached => {parent_tid=[4916]}, 88) = 4916 [pid 4916] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4916] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4916] <... futex resumed>) = 0 [pid 4916] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4916] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4916] <... futex resumed>) = 0 [pid 4916] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4916] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4916] <... futex resumed>) = 0 [pid 4916] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4916] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4915] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4916] <... futex resumed>) = 0 [pid 4915] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4916] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4916] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4915] <... futex resumed>) = 0 [pid 4916] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4915] exit_group(0) = ? [pid 4916] <... futex resumed>) = ? [pid 4916] +++ exited with 0 +++ [pid 4915] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4915, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18264", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18264/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18264/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18264/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18264") = 0 mkdir("./18265", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4917 ./strace-static-x86_64: Process 4917 attached [pid 4917] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4917] chdir("./18265") = 0 [pid 4917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4917] setpgid(0, 0) = 0 [pid 4917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4917] write(3, "1000", 4) = 4 [pid 4917] close(3) = 0 [pid 4917] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4917] write(1, "executing program\n", 18executing program ) = 18 [pid 4917] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4917] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4917] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4917] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4917] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4917] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4918 attached => {parent_tid=[4918]}, 88) = 4918 [pid 4918] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4917] rt_sigprocmask(SIG_SETMASK, [], [pid 4918] <... set_robust_list resumed>) = 0 [pid 4918] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4918] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4917] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4918] <... futex resumed>) = 0 [pid 4918] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4918] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4918] <... futex resumed>) = 0 [pid 4918] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4918] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4918] <... futex resumed>) = 0 [pid 4918] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4918] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4917] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4918] <... futex resumed>) = 0 [pid 4917] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4918] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4918] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4918] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4917] <... futex resumed>) = 0 [pid 4917] exit_group(0) = ? [pid 4918] <... futex resumed>) = ? [pid 4918] +++ exited with 0 +++ [pid 4917] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4917, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18265", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18265/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18265/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18265/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18265") = 0 mkdir("./18266", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4919 ./strace-static-x86_64: Process 4919 attached [pid 4919] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4919] chdir("./18266") = 0 [pid 4919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4919] setpgid(0, 0) = 0 [pid 4919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4919] write(3, "1000", 4) = 4 [pid 4919] close(3) = 0 [pid 4919] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4919] write(1, "executing program\n", 18executing program ) = 18 [pid 4919] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4919] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4919] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4919] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4919] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4919] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4920 attached => {parent_tid=[4920]}, 88) = 4920 [pid 4920] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4920] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4920] <... futex resumed>) = 0 [pid 4920] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4920] <... futex resumed>) = 0 [pid 4920] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4920] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4920] <... futex resumed>) = 0 [pid 4920] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4919] <... futex resumed>) = 0 [pid 4919] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4919] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4920] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4920] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4919] <... futex resumed>) = 0 [pid 4919] exit_group(0) = ? [pid 4920] +++ exited with 0 +++ [pid 4919] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4919, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18266", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18266/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18266/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18266/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18266") = 0 mkdir("./18267", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4921 ./strace-static-x86_64: Process 4921 attached [pid 4921] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4921] chdir("./18267") = 0 [pid 4921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4921] setpgid(0, 0) = 0 [pid 4921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4921] write(3, "1000", 4) = 4 [pid 4921] close(3) = 0 [pid 4921] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4921] write(1, "executing program\n", 18) = 18 [pid 4921] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4921] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4921] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4921] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4921] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4921] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4921] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4922 attached => {parent_tid=[4922]}, 88) = 4922 [pid 4922] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4922] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4921] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4922] <... futex resumed>) = 0 [pid 4922] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4922] <... futex resumed>) = 0 [pid 4921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4922] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4921] <... futex resumed>) = 0 [pid 4922] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4922] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4921] <... futex resumed>) = 0 [pid 4921] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4921] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4922] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4922] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4921] <... futex resumed>) = 0 [pid 4922] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4921] exit_group(0) = ? [pid 4922] <... futex resumed>) = ? [pid 4922] +++ exited with 0 +++ [pid 4921] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4921, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18267", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18267/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18267/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18267/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18267") = 0 mkdir("./18268", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4923 ./strace-static-x86_64: Process 4923 attached [pid 4923] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4923] chdir("./18268") = 0 [pid 4923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4923] setpgid(0, 0) = 0 [pid 4923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4923] write(3, "1000", 4) = 4 [pid 4923] close(3) = 0 [pid 4923] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4923] write(1, "executing program\n", 18executing program ) = 18 [pid 4923] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4923] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4923] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4923] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4923] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4923] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4924 attached => {parent_tid=[4924]}, 88) = 4924 [pid 4924] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4924] <... set_robust_list resumed>) = 0 [pid 4924] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4924] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4923] <... futex resumed>) = 0 [pid 4923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4924] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4923] <... futex resumed>) = 0 [pid 4923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4924] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4923] <... futex resumed>) = 0 [pid 4923] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4923] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4924] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4924] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4923] <... futex resumed>) = 0 [pid 4923] exit_group(0) = ? [pid 4924] +++ exited with 0 +++ [pid 4923] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4923, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18268", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18268", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18268/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18268/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18268/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18268") = 0 mkdir("./18269", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4925 ./strace-static-x86_64: Process 4925 attached [pid 4925] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4925] chdir("./18269") = 0 [pid 4925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4925] setpgid(0, 0) = 0 [pid 4925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4925] write(3, "1000", 4) = 4 [pid 4925] close(3) = 0 [pid 4925] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4925] write(1, "executing program\n", 18) = 18 [pid 4925] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4925] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4925] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4925] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4925] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4925] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4926 attached => {parent_tid=[4926]}, 88) = 4926 [pid 4926] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4926] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4926] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4925] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4926] <... futex resumed>) = 0 [pid 4926] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4926] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4926] <... futex resumed>) = 0 [pid 4926] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4926] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4925] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4926] <... futex resumed>) = 0 [pid 4926] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4926] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4925] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4926] <... futex resumed>) = 0 [pid 4926] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4926] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4926] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4925] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4925] exit_group(0) = ? [pid 4926] <... futex resumed>) = ? [pid 4926] +++ exited with 0 +++ [pid 4925] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4925, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18269", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18269", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18269/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18269/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18269") = 0 mkdir("./18270", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4927 ./strace-static-x86_64: Process 4927 attached [pid 4927] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4927] chdir("./18270") = 0 [pid 4927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4927] setpgid(0, 0) = 0 [pid 4927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4927] write(3, "1000", 4) = 4 [pid 4927] close(3) = 0 [pid 4927] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4927] write(1, "executing program\n", 18) = 18 [pid 4927] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4927] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4927] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4927] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4927] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4927] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4927] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4928]}, 88) = 4928 [pid 4927] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4928 attached [pid 4928] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4928] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4928] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4927] <... futex resumed>) = 0 [pid 4927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4928] <... futex resumed>) = 1 [pid 4928] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4927] <... futex resumed>) = 0 [pid 4927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4928] <... futex resumed>) = 1 [pid 4928] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4927] <... futex resumed>) = 0 [pid 4927] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4927] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4928] <... futex resumed>) = 1 [pid 4928] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4928] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4927] <... futex resumed>) = 0 [pid 4927] exit_group(0) = ? [pid 4928] <... futex resumed>) = ? [pid 4928] +++ exited with 0 +++ [pid 4927] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4927, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18270", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18270", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18270/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18270/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18270/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18270") = 0 mkdir("./18271", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4929 ./strace-static-x86_64: Process 4929 attached [pid 4929] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4929] chdir("./18271") = 0 [pid 4929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4929] setpgid(0, 0) = 0 [pid 4929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4929] write(3, "1000", 4) = 4 [pid 4929] close(3) = 0 [pid 4929] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4929] write(1, "executing program\n", 18) = 18 [pid 4929] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4929] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4929] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4929] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4929] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4929] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4929] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4930 attached => {parent_tid=[4930]}, 88) = 4930 [pid 4930] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4930] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4930] <... futex resumed>) = 0 [pid 4929] <... futex resumed>) = 1 [pid 4930] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4930] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4930] <... futex resumed>) = 0 [pid 4929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4930] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4929] <... futex resumed>) = 0 [pid 4930] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4930] <... futex resumed>) = 0 [pid 4929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4930] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4929] <... futex resumed>) = 0 [pid 4930] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4929] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4929] <... futex resumed>) = 0 [pid 4930] write(-1, "0x0000000000000001", 18 [pid 4929] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4930] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4930] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4929] <... futex resumed>) = 0 [pid 4930] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4929] exit_group(0) = ? [pid 4930] <... futex resumed>) = ? [pid 4930] +++ exited with 0 +++ [pid 4929] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4929, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18271", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18271", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18271/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18271/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18271/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18271") = 0 mkdir("./18272", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4931 ./strace-static-x86_64: Process 4931 attached [pid 4931] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4931] chdir("./18272") = 0 [pid 4931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4931] setpgid(0, 0) = 0 [pid 4931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4931] write(3, "1000", 4) = 4 [pid 4931] close(3) = 0 [pid 4931] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4931] write(1, "executing program\n", 18executing program ) = 18 [pid 4931] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4931] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4931] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4931] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4931] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4931] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4931] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4932 attached => {parent_tid=[4932]}, 88) = 4932 [pid 4932] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4932] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4931] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4932] <... futex resumed>) = 0 [pid 4932] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4932] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4932] <... futex resumed>) = 0 [pid 4932] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4932] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4932] <... futex resumed>) = 0 [pid 4932] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4932] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4931] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4932] <... futex resumed>) = 0 [pid 4931] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4932] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4932] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4931] <... futex resumed>) = 0 [pid 4932] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4931] exit_group(0) = ? [pid 4932] <... futex resumed>) = ? [pid 4932] +++ exited with 0 +++ [pid 4931] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4931, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18272", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18272", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18272/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18272/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18272/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18272") = 0 mkdir("./18273", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4933 ./strace-static-x86_64: Process 4933 attached [pid 4933] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4933] chdir("./18273") = 0 [pid 4933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4933] setpgid(0, 0) = 0 [pid 4933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4933] write(3, "1000", 4) = 4 [pid 4933] close(3) = 0 [pid 4933] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4933] write(1, "executing program\n", 18executing program ) = 18 [pid 4933] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4933] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4933] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4933] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4933] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4933] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4933] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4934 attached => {parent_tid=[4934]}, 88) = 4934 [pid 4934] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4933] rt_sigprocmask(SIG_SETMASK, [], [pid 4934] <... set_robust_list resumed>) = 0 [pid 4934] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4933] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4934] <... futex resumed>) = 0 [pid 4934] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4934] <... futex resumed>) = 0 [pid 4934] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4934] <... futex resumed>) = 0 [pid 4934] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4933] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4934] <... futex resumed>) = 0 [pid 4933] <... futex resumed>) = 1 [pid 4933] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4934] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4934] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4933] <... futex resumed>) = 0 [pid 4934] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4933] exit_group(0) = ? [pid 4934] <... futex resumed>) = ? [pid 4934] +++ exited with 0 +++ [pid 4933] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4933, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18273", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18273", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18273/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18273/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18273/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18273") = 0 mkdir("./18274", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4935 ./strace-static-x86_64: Process 4935 attached [pid 4935] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4935] chdir("./18274") = 0 [pid 4935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4935] setpgid(0, 0) = 0 [pid 4935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4935] write(3, "1000", 4) = 4 [pid 4935] close(3) = 0 [pid 4935] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4935] write(1, "executing program\n", 18executing program ) = 18 [pid 4935] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4935] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4935] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4935] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4935] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4935] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4936 attached [pid 4936] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4936] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4935] <... clone3 resumed> => {parent_tid=[4936]}, 88) = 4936 [pid 4935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4936] <... futex resumed>) = 0 [pid 4936] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4936] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4936] <... futex resumed>) = 0 [pid 4936] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4936] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4936] <... futex resumed>) = 0 [pid 4935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4936] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4936] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4935] <... futex resumed>) = 0 [pid 4935] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4936] <... futex resumed>) = 0 [pid 4935] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4936] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4936] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4936] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4935] <... futex resumed>) = 0 [pid 4935] exit_group(0) = ? [pid 4936] <... futex resumed>) = ? [pid 4936] +++ exited with 0 +++ [pid 4935] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4935, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18274", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18274/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18274/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18274/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18274") = 0 mkdir("./18275", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4937 ./strace-static-x86_64: Process 4937 attached [pid 4937] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4937] chdir("./18275") = 0 [pid 4937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4937] setpgid(0, 0) = 0 [pid 4937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4937] write(3, "1000", 4) = 4 [pid 4937] close(3) = 0 [pid 4937] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4937] write(1, "executing program\n", 18executing program ) = 18 [pid 4937] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4937] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4937] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4937] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4937] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4937] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4937] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4938 attached => {parent_tid=[4938]}, 88) = 4938 [pid 4938] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4938] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4938] <... futex resumed>) = 0 [pid 4938] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4938] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4938] <... futex resumed>) = 0 [pid 4938] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4938] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4938] <... futex resumed>) = 0 [pid 4937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4938] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4937] <... futex resumed>) = 0 [pid 4937] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4938] write(-1, "0x0000000000000001", 18 [pid 4937] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4938] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4938] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4937] <... futex resumed>) = 0 [pid 4938] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4937] exit_group(0) = ? [pid 4938] <... futex resumed>) = ? [pid 4938] +++ exited with 0 +++ [pid 4937] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4937, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18275", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18275/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18275/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18275/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18275") = 0 mkdir("./18276", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4939 ./strace-static-x86_64: Process 4939 attached [pid 4939] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4939] chdir("./18276") = 0 [pid 4939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4939] setpgid(0, 0) = 0 [pid 4939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4939] write(3, "1000", 4) = 4 [pid 4939] close(3) = 0 [pid 4939] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4939] write(1, "executing program\n", 18executing program ) = 18 [pid 4939] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4939] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4939] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4939] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4939] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4939] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4939] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4940 attached => {parent_tid=[4940]}, 88) = 4940 [pid 4940] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4939] rt_sigprocmask(SIG_SETMASK, [], [pid 4940] <... set_robust_list resumed>) = 0 [pid 4939] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4940] rt_sigprocmask(SIG_SETMASK, [], [pid 4939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4940] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4939] <... futex resumed>) = 0 [pid 4939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4940] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4939] <... futex resumed>) = 0 [pid 4940] <... futex resumed>) = 1 [pid 4939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4940] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4939] <... futex resumed>) = 0 [pid 4939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4940] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4939] <... futex resumed>) = 0 [pid 4940] <... futex resumed>) = 1 [pid 4939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4940] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4939] <... futex resumed>) = 0 [pid 4939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4940] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4939] <... futex resumed>) = 0 [pid 4940] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4939] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4940] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4939] <... futex resumed>) = 0 [pid 4939] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4940] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4940] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4939] <... futex resumed>) = 0 [pid 4940] <... futex resumed>) = 1 [pid 4939] exit_group(0 [pid 4940] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4939] <... exit_group resumed>) = ? [pid 4940] <... futex resumed>) = ? [pid 4940] +++ exited with 0 +++ [pid 4939] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4939, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18276", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18276", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18276/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18276/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18276/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18276") = 0 mkdir("./18277", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4941 ./strace-static-x86_64: Process 4941 attached [pid 4941] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4941] chdir("./18277") = 0 [pid 4941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4941] setpgid(0, 0) = 0 [pid 4941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4941] write(3, "1000", 4) = 4 [pid 4941] close(3) = 0 [pid 4941] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4941] write(1, "executing program\n", 18executing program ) = 18 [pid 4941] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4941] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4941] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4941] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4941] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4941] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4941] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4942 attached [pid 4942] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4941] <... clone3 resumed> => {parent_tid=[4942]}, 88) = 4942 [pid 4942] <... set_robust_list resumed>) = 0 [pid 4941] rt_sigprocmask(SIG_SETMASK, [], [pid 4942] rt_sigprocmask(SIG_SETMASK, [], [pid 4941] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4942] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4942] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4941] <... futex resumed>) = 0 [pid 4942] <... futex resumed>) = 1 [pid 4941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4942] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4941] <... futex resumed>) = 0 [pid 4941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4942] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4941] <... futex resumed>) = 0 [pid 4942] <... futex resumed>) = 1 [pid 4941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4942] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4941] <... futex resumed>) = 0 [pid 4941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4942] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4941] <... futex resumed>) = 0 [pid 4942] <... futex resumed>) = 1 [pid 4941] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4942] write(-1, "0x0000000000000001", 18 [pid 4941] <... futex resumed>) = 0 [pid 4942] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4941] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4942] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4942] <... futex resumed>) = 0 [pid 4941] exit_group(0 [pid 4942] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4941] <... exit_group resumed>) = ? [pid 4942] <... futex resumed>) = ? [pid 4942] +++ exited with 0 +++ [pid 4941] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4941, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18277", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18277", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18277/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18277/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18277/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18277") = 0 mkdir("./18278", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4943 ./strace-static-x86_64: Process 4943 attached [pid 4943] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4943] chdir("./18278") = 0 [pid 4943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4943] setpgid(0, 0) = 0 [pid 4943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4943] write(3, "1000", 4) = 4 [pid 4943] close(3) = 0 [pid 4943] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4943] write(1, "executing program\n", 18executing program ) = 18 [pid 4943] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4943] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4943] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4943] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4943] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4943] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4943] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4944 attached => {parent_tid=[4944]}, 88) = 4944 [pid 4944] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4944] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4944] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4944] <... futex resumed>) = 0 [pid 4944] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4944] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4944] <... futex resumed>) = 0 [pid 4944] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4944] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4944] <... futex resumed>) = 0 [pid 4944] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4944] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4943] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4944] <... futex resumed>) = 0 [pid 4943] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4944] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4944] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4944] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4943] <... futex resumed>) = 0 [pid 4943] exit_group(0) = ? [pid 4944] <... futex resumed>) = ? [pid 4944] +++ exited with 0 +++ [pid 4943] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4943, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18278", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18278", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18278/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18278/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18278/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18278") = 0 mkdir("./18279", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4945 ./strace-static-x86_64: Process 4945 attached [pid 4945] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4945] chdir("./18279") = 0 [pid 4945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4945] setpgid(0, 0) = 0 [pid 4945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4945] write(3, "1000", 4) = 4 [pid 4945] close(3) = 0 [pid 4945] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4945] write(1, "executing program\n", 18executing program ) = 18 [pid 4945] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4945] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4945] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4945] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4945] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4945] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4946 attached => {parent_tid=[4946]}, 88) = 4946 [pid 4946] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4945] rt_sigprocmask(SIG_SETMASK, [], [pid 4946] <... set_robust_list resumed>) = 0 [pid 4945] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4946] rt_sigprocmask(SIG_SETMASK, [], [pid 4945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4946] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4945] <... futex resumed>) = 0 [pid 4945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4946] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4945] <... futex resumed>) = 0 [pid 4946] <... futex resumed>) = 1 [pid 4946] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4946] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4945] <... futex resumed>) = 0 [pid 4946] <... futex resumed>) = 1 [pid 4945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4946] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4945] <... futex resumed>) = 0 [pid 4945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4946] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4945] <... futex resumed>) = 0 [pid 4946] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4945] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4946] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4945] <... futex resumed>) = 0 [pid 4945] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4946] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4946] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4945] <... futex resumed>) = 0 [pid 4946] <... futex resumed>) = 1 [pid 4945] exit_group(0 [pid 4946] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4945] <... exit_group resumed>) = ? [pid 4946] <... futex resumed>) = ? [pid 4946] +++ exited with 0 +++ [pid 4945] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4945, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18279", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18279", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18279/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18279/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18279/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18279") = 0 mkdir("./18280", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4947 ./strace-static-x86_64: Process 4947 attached [pid 4947] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4947] chdir("./18280") = 0 [pid 4947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4947] setpgid(0, 0) = 0 [pid 4947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4947] write(3, "1000", 4) = 4 [pid 4947] close(3) = 0 [pid 4947] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4947] write(1, "executing program\n", 18executing program ) = 18 [pid 4947] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4947] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4947] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4947] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4947] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4947] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4947] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4948 attached => {parent_tid=[4948]}, 88) = 4948 [pid 4948] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4947] rt_sigprocmask(SIG_SETMASK, [], [pid 4948] <... set_robust_list resumed>) = 0 [pid 4947] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4948] rt_sigprocmask(SIG_SETMASK, [], [pid 4947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4948] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4947] <... futex resumed>) = 0 [pid 4947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4948] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4947] <... futex resumed>) = 0 [pid 4947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4948] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4947] <... futex resumed>) = 0 [pid 4947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4948] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4947] <... futex resumed>) = 0 [pid 4948] <... futex resumed>) = 1 [pid 4947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4948] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4947] <... futex resumed>) = 0 [pid 4947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4948] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4947] <... futex resumed>) = 0 [pid 4947] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4947] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4948] <... futex resumed>) = 1 [pid 4948] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4948] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4947] <... futex resumed>) = 0 [pid 4947] exit_group(0) = ? [pid 4948] <... futex resumed>) = ? [pid 4948] +++ exited with 0 +++ [pid 4947] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4947, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18280", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18280", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18280/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18280/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18280/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18280") = 0 mkdir("./18281", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4949 ./strace-static-x86_64: Process 4949 attached [pid 4949] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4949] chdir("./18281") = 0 [pid 4949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4949] setpgid(0, 0) = 0 [pid 4949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "1000", 4) = 4 [pid 4949] close(3) = 0 [pid 4949] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4949] write(1, "executing program\n", 18) = 18 [pid 4949] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4949] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4949] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4949] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4949] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4949] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4950 attached => {parent_tid=[4950]}, 88) = 4950 [pid 4950] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4949] rt_sigprocmask(SIG_SETMASK, [], [pid 4950] rt_sigprocmask(SIG_SETMASK, [], [pid 4949] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4950] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4950] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4950] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4949] <... futex resumed>) = 0 [pid 4949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4950] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4950] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4949] <... futex resumed>) = 0 [pid 4949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4950] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4950] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4950] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4949] <... futex resumed>) = 0 [pid 4949] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4950] <... futex resumed>) = 0 [pid 4949] <... futex resumed>) = 1 [pid 4949] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4950] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4950] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4950] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4949] <... futex resumed>) = 0 [pid 4949] exit_group(0) = ? [pid 4950] <... futex resumed>) = ? [pid 4950] +++ exited with 0 +++ [pid 4949] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4949, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18281", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18281", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18281/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18281/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18281/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18281") = 0 mkdir("./18282", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4951 ./strace-static-x86_64: Process 4951 attached [pid 4951] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4951] chdir("./18282") = 0 [pid 4951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4951] setpgid(0, 0) = 0 [pid 4951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4951] write(3, "1000", 4) = 4 [pid 4951] close(3) = 0 [pid 4951] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4951] write(1, "executing program\n", 18executing program ) = 18 [pid 4951] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4951] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4951] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4951] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4951] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4951] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4951] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4952 attached => {parent_tid=[4952]}, 88) = 4952 [pid 4952] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4952] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4952] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4952] <... futex resumed>) = 0 [pid 4951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4952] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4952] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4951] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4952] <... futex resumed>) = 0 [pid 4952] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4952] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4951] <... futex resumed>) = 0 [pid 4951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4952] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4951] <... futex resumed>) = 0 [pid 4951] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4951] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4952] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4952] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4951] <... futex resumed>) = 0 [pid 4951] exit_group(0) = ? [pid 4952] +++ exited with 0 +++ [pid 4951] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4951, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18282", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18282", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18282/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18282/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18282/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18282") = 0 mkdir("./18283", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4953 ./strace-static-x86_64: Process 4953 attached [pid 4953] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4953] chdir("./18283") = 0 [pid 4953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4953] setpgid(0, 0) = 0 [pid 4953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4953] write(3, "1000", 4) = 4 [pid 4953] close(3) = 0 [pid 4953] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4953] write(1, "executing program\n", 18) = 18 [pid 4953] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4953] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4953] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4953] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4953] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4954 attached [pid 4954] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4954] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4954] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4953] <... clone3 resumed> => {parent_tid=[4954]}, 88) = 4954 [pid 4953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4954] <... futex resumed>) = 0 [pid 4954] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4954] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4954] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4954] <... futex resumed>) = 0 [pid 4953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4954] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4953] <... futex resumed>) = 0 [pid 4954] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4954] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4953] <... futex resumed>) = 0 [pid 4953] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4954] write(-1, "0x0000000000000001", 18 [pid 4953] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4954] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4954] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4953] <... futex resumed>) = 0 [pid 4954] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4953] exit_group(0) = ? [pid 4954] <... futex resumed>) = ? [pid 4954] +++ exited with 0 +++ [pid 4953] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4953, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18283", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18283", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18283/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18283/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18283/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18283") = 0 mkdir("./18284", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4955 ./strace-static-x86_64: Process 4955 attached [pid 4955] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4955] chdir("./18284") = 0 [pid 4955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4955] setpgid(0, 0) = 0 [pid 4955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4955] write(3, "1000", 4) = 4 [pid 4955] close(3) = 0 [pid 4955] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4955] write(1, "executing program\n", 18executing program ) = 18 [pid 4955] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4955] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4955] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4955] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4955] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4955] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4956 attached [pid 4956] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4956] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4955] <... clone3 resumed> => {parent_tid=[4956]}, 88) = 4956 [pid 4955] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4956] <... futex resumed>) = 0 [pid 4956] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4956] <... futex resumed>) = 0 [pid 4956] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4956] <... futex resumed>) = 0 [pid 4956] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4955] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4956] <... futex resumed>) = 0 [pid 4956] write(-1, "0x0000000000000001", 18 [pid 4955] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4956] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4956] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4956] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4955] exit_group(0) = ? [pid 4956] <... futex resumed>) = ? [pid 4956] +++ exited with 0 +++ [pid 4955] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4955, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18284", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18284", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18284/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18284/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18284/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18284") = 0 mkdir("./18285", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4957 ./strace-static-x86_64: Process 4957 attached [pid 4957] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4957] chdir("./18285") = 0 [pid 4957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4957] setpgid(0, 0) = 0 [pid 4957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4957] write(3, "1000", 4) = 4 [pid 4957] close(3) = 0 [pid 4957] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4957] write(1, "executing program\n", 18) = 18 [pid 4957] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4957] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4957] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4957] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4957] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4957] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4958 attached [pid 4958] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4958] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4958] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4957] <... clone3 resumed> => {parent_tid=[4958]}, 88) = 4958 [pid 4957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4958] <... futex resumed>) = 0 [pid 4958] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4958] <... futex resumed>) = 0 [pid 4958] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4958] <... futex resumed>) = 0 [pid 4957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4958] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4958] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4957] <... futex resumed>) = 0 [pid 4957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4958] <... futex resumed>) = 0 [pid 4957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4958] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4957] <... futex resumed>) = 0 [pid 4957] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4957] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4958] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4958] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4958] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4957] <... futex resumed>) = 0 [pid 4957] exit_group(0) = ? [pid 4958] <... futex resumed>) = ? [pid 4958] +++ exited with 0 +++ [pid 4957] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4957, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18285", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18285", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18285/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18285/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18285/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18285") = 0 mkdir("./18286", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4959 ./strace-static-x86_64: Process 4959 attached [pid 4959] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4959] chdir("./18286") = 0 [pid 4959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4959] setpgid(0, 0) = 0 [pid 4959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4959] write(3, "1000", 4) = 4 [pid 4959] close(3) = 0 [pid 4959] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4959] write(1, "executing program\n", 18) = 18 [pid 4959] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4959] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4959] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4959] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4959] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4959] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4960 attached => {parent_tid=[4960]}, 88) = 4960 [pid 4960] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4960] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4959] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4960] <... futex resumed>) = 0 [pid 4960] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4960] <... futex resumed>) = 0 [pid 4959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4960] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4959] <... futex resumed>) = 0 [pid 4960] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4960] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4959] <... futex resumed>) = 0 [pid 4960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4959] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4959] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4960] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4960] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4960] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4959] <... futex resumed>) = 0 [pid 4959] exit_group(0) = ? [pid 4960] <... futex resumed>) = ? [pid 4960] +++ exited with 0 +++ [pid 4959] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4959, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18286", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18286", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18286/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18286/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18286/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18286") = 0 mkdir("./18287", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4961 ./strace-static-x86_64: Process 4961 attached [pid 4961] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4961] chdir("./18287") = 0 [pid 4961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4961] setpgid(0, 0) = 0 [pid 4961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4961] write(3, "1000", 4) = 4 [pid 4961] close(3) = 0 [pid 4961] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4961] write(1, "executing program\n", 18executing program ) = 18 [pid 4961] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4961] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4961] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4961] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4961] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4961] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4961] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4962 attached [pid 4962] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4961] <... clone3 resumed> => {parent_tid=[4962]}, 88) = 4962 [pid 4961] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4962] <... futex resumed>) = 0 [pid 4962] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4962] <... futex resumed>) = 0 [pid 4962] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4962] <... futex resumed>) = 0 [pid 4962] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4961] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4962] <... futex resumed>) = 0 [pid 4961] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4962] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4962] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4962] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4961] <... futex resumed>) = 0 [pid 4961] exit_group(0) = ? [pid 4962] <... futex resumed>) = ? [pid 4962] +++ exited with 0 +++ [pid 4961] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4961, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18287", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18287", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18287/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18287/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18287/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18287") = 0 mkdir("./18288", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4963 attached , child_tidptr=0x55558931b690) = 4963 [pid 4963] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4963] chdir("./18288") = 0 [pid 4963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4963] setpgid(0, 0) = 0 [pid 4963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4963] write(3, "1000", 4) = 4 [pid 4963] close(3) = 0 [pid 4963] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4963] write(1, "executing program\n", 18executing program ) = 18 [pid 4963] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4963] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4963] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4963] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4963] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4963] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4963] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4964 attached [pid 4964] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4964] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4963] <... clone3 resumed> => {parent_tid=[4964]}, 88) = 4964 [pid 4963] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4964] <... futex resumed>) = 0 [pid 4964] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4964] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4964] <... futex resumed>) = 0 [pid 4964] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4964] <... futex resumed>) = 0 [pid 4964] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4963] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4964] <... futex resumed>) = 0 [pid 4964] write(-1, "0x0000000000000001", 18 [pid 4963] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4964] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4964] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4964] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4963] exit_group(0) = ? [pid 4964] <... futex resumed>) = ? [pid 4964] +++ exited with 0 +++ [pid 4963] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4963, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18288", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18288", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18288/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18288/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18288/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18288") = 0 mkdir("./18289", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4965 ./strace-static-x86_64: Process 4965 attached [pid 4965] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4965] chdir("./18289") = 0 [pid 4965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4965] setpgid(0, 0) = 0 [pid 4965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4965] write(3, "1000", 4) = 4 [pid 4965] close(3) = 0 [pid 4965] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4965] write(1, "executing program\n", 18executing program ) = 18 [pid 4965] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4965] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4965] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4965] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4965] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4965] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4966 attached => {parent_tid=[4966]}, 88) = 4966 [pid 4966] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4966] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4966] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4965] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4966] <... futex resumed>) = 0 [pid 4966] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4966] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4966] <... futex resumed>) = 0 [pid 4966] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4966] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4966] <... futex resumed>) = 0 [pid 4966] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4966] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4965] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4966] <... futex resumed>) = 0 [pid 4966] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4966] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4966] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4965] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4965] exit_group(0) = ? [pid 4966] <... futex resumed>) = ? [pid 4966] +++ exited with 0 +++ [pid 4965] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4965, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18289", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18289", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18289/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18289/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18289/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18289") = 0 mkdir("./18290", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4967 ./strace-static-x86_64: Process 4967 attached [pid 4967] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4967] chdir("./18290") = 0 [pid 4967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4967] setpgid(0, 0) = 0 [pid 4967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4967] write(3, "1000", 4) = 4 [pid 4967] close(3) = 0 [pid 4967] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4967] write(1, "executing program\n", 18executing program ) = 18 [pid 4967] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4967] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4967] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4967] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4967] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4967] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4968 attached => {parent_tid=[4968]}, 88) = 4968 [pid 4968] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4967] rt_sigprocmask(SIG_SETMASK, [], [pid 4968] <... set_robust_list resumed>) = 0 [pid 4968] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4968] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4967] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4968] <... futex resumed>) = 0 [pid 4968] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4968] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4968] <... futex resumed>) = 0 [pid 4968] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4968] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4968] <... futex resumed>) = 0 [pid 4967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4968] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4967] <... futex resumed>) = 0 [pid 4967] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4968] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4967] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4968] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4967] <... futex resumed>) = 0 [pid 4968] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4967] exit_group(0) = ? [pid 4968] <... futex resumed>) = ? [pid 4968] +++ exited with 0 +++ [pid 4967] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4967, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18290", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18290", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18290/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18290/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18290/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18290") = 0 mkdir("./18291", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4969 ./strace-static-x86_64: Process 4969 attached [pid 4969] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4969] chdir("./18291") = 0 [pid 4969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4969] setpgid(0, 0) = 0 [pid 4969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4969] write(3, "1000", 4) = 4 [pid 4969] close(3) = 0 [pid 4969] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4969] write(1, "executing program\n", 18executing program ) = 18 [pid 4969] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4969] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4969] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4969] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4969] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4969] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4970 attached => {parent_tid=[4970]}, 88) = 4970 [pid 4970] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4970] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4970] <... futex resumed>) = 0 [pid 4970] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4970] <... futex resumed>) = 0 [pid 4970] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4970] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4970] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4969] <... futex resumed>) = 0 [pid 4970] <... futex resumed>) = 1 [pid 4969] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4969] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4970] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4970] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4969] <... futex resumed>) = 0 [pid 4970] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4969] exit_group(0) = ? [pid 4970] <... futex resumed>) = 231 [pid 4970] +++ exited with 0 +++ [pid 4969] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4969, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18291", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18291", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18291/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18291/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18291/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18291") = 0 mkdir("./18292", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4971 ./strace-static-x86_64: Process 4971 attached [pid 4971] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4971] chdir("./18292") = 0 [pid 4971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4971] setpgid(0, 0) = 0 [pid 4971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4971] write(3, "1000", 4) = 4 [pid 4971] close(3) = 0 [pid 4971] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4971] write(1, "executing program\n", 18executing program ) = 18 [pid 4971] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4971] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4971] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4971] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4971] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4971] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[4972]}, 88) = 4972 ./strace-static-x86_64: Process 4972 attached [pid 4971] rt_sigprocmask(SIG_SETMASK, [], [pid 4972] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4972] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4971] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4972] <... futex resumed>) = 0 [pid 4972] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4972] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4972] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4971] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4972] <... futex resumed>) = 0 [pid 4972] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4972] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4972] <... futex resumed>) = 0 [pid 4972] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4972] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4972] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4971] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4971] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4972] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4972] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4971] <... futex resumed>) = 0 [pid 4972] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4971] exit_group(0) = ? [pid 4972] <... futex resumed>) = ? [pid 4972] +++ exited with 0 +++ [pid 4971] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4971, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18292", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18292", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18292/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18292/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18292/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18292") = 0 mkdir("./18293", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4973 attached , child_tidptr=0x55558931b690) = 4973 [pid 4973] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4973] chdir("./18293") = 0 [pid 4973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4973] setpgid(0, 0) = 0 [pid 4973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4973] write(3, "1000", 4) = 4 [pid 4973] close(3) = 0 [pid 4973] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4973] write(1, "executing program\n", 18executing program ) = 18 [pid 4973] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4973] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4973] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4973] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4973] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4973] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4974 attached => {parent_tid=[4974]}, 88) = 4974 [pid 4974] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4973] rt_sigprocmask(SIG_SETMASK, [], [pid 4974] <... set_robust_list resumed>) = 0 [pid 4973] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4974] rt_sigprocmask(SIG_SETMASK, [], [pid 4973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4974] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4973] <... futex resumed>) = 0 [pid 4973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4974] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4973] <... futex resumed>) = 0 [pid 4974] <... futex resumed>) = 1 [pid 4973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4974] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4973] <... futex resumed>) = 0 [pid 4973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4974] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4973] <... futex resumed>) = 0 [pid 4973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4974] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4973] <... futex resumed>) = 0 [pid 4973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4974] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4973] <... futex resumed>) = 0 [pid 4974] <... futex resumed>) = 1 [pid 4973] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4973] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4974] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4974] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4973] <... futex resumed>) = 0 [pid 4973] exit_group(0) = ? [pid 4974] <... futex resumed>) = ? [pid 4974] +++ exited with 0 +++ [pid 4973] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4973, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18293", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18293", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18293/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18293/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18293/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18293") = 0 mkdir("./18294", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4975 ./strace-static-x86_64: Process 4975 attached [pid 4975] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4975] chdir("./18294") = 0 [pid 4975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4975] setpgid(0, 0) = 0 [pid 4975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4975] write(3, "1000", 4) = 4 [pid 4975] close(3) = 0 [pid 4975] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4975] write(1, "executing program\n", 18executing program ) = 18 [pid 4975] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4975] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4975] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4975] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4975] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4975] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4975] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4976 attached [pid 4976] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4975] <... clone3 resumed> => {parent_tid=[4976]}, 88) = 4976 [pid 4976] <... set_robust_list resumed>) = 0 [pid 4976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4976] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4976] <... futex resumed>) = 0 [pid 4976] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4976] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4976] <... futex resumed>) = 0 [pid 4976] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4976] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4976] <... futex resumed>) = 0 [pid 4976] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4976] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4975] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4976] <... futex resumed>) = 0 [pid 4975] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4976] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4976] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4975] <... futex resumed>) = 0 [pid 4976] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4975] exit_group(0) = ? [pid 4976] <... futex resumed>) = ? [pid 4976] +++ exited with 0 +++ [pid 4975] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4975, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18294", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18294", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18294/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18294/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18294/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18294") = 0 mkdir("./18295", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4977 ./strace-static-x86_64: Process 4977 attached [pid 4977] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4977] chdir("./18295") = 0 [pid 4977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4977] setpgid(0, 0) = 0 [pid 4977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4977] write(3, "1000", 4) = 4 [pid 4977] close(3) = 0 [pid 4977] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 4977] write(1, "executing program\n", 18) = 18 [pid 4977] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4977] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4977] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4977] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4977] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4978 attached [pid 4978] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4978] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4977] <... clone3 resumed> => {parent_tid=[4978]}, 88) = 4978 [pid 4977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4978] <... futex resumed>) = 0 [pid 4978] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4978] <... futex resumed>) = 0 [pid 4978] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4978] <... futex resumed>) = 0 [pid 4977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4978] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4977] <... futex resumed>) = 0 [pid 4978] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4978] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4977] <... futex resumed>) = 0 [pid 4977] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4977] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4978] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4978] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4977] <... futex resumed>) = 0 [pid 4978] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4977] exit_group(0) = ? [pid 4978] <... futex resumed>) = ? [pid 4978] +++ exited with 0 +++ [pid 4977] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18295", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18295", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18295/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18295/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18295/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18295") = 0 mkdir("./18296", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4979 ./strace-static-x86_64: Process 4979 attached [pid 4979] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4979] chdir("./18296") = 0 [pid 4979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4979] setpgid(0, 0) = 0 [pid 4979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4979] write(3, "1000", 4) = 4 [pid 4979] close(3) = 0 [pid 4979] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4979] write(1, "executing program\n", 18executing program ) = 18 [pid 4979] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4979] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4979] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4979] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4979] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4979] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4980 attached => {parent_tid=[4980]}, 88) = 4980 [pid 4980] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4979] rt_sigprocmask(SIG_SETMASK, [], [pid 4980] <... set_robust_list resumed>) = 0 [pid 4979] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4980] rt_sigprocmask(SIG_SETMASK, [], [pid 4979] <... futex resumed>) = 0 [pid 4980] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4980] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4979] <... futex resumed>) = 0 [pid 4979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4980] <... futex resumed>) = 1 [pid 4980] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4979] <... futex resumed>) = 0 [pid 4979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4980] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4979] <... futex resumed>) = 0 [pid 4979] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4979] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4980] <... futex resumed>) = 1 [pid 4980] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4980] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4979] <... futex resumed>) = 0 [pid 4979] exit_group(0) = ? [pid 4980] <... futex resumed>) = ? [pid 4980] +++ exited with 0 +++ [pid 4979] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4979, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18296", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18296", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18296/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18296/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18296/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18296") = 0 mkdir("./18297", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4981 ./strace-static-x86_64: Process 4981 attached [pid 4981] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4981] chdir("./18297") = 0 [pid 4981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4981] setpgid(0, 0) = 0 [pid 4981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4981] write(3, "1000", 4) = 4 [pid 4981] close(3) = 0 [pid 4981] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 4981] write(1, "executing program\n", 18) = 18 [pid 4981] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4981] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4981] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4981] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4981] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4981] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4981] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4982 attached => {parent_tid=[4982]}, 88) = 4982 [pid 4982] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4982] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4982] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4982] <... futex resumed>) = 0 [pid 4982] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4982] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4982] <... futex resumed>) = 0 [pid 4981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4982] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4981] <... futex resumed>) = 0 [pid 4982] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4981] <... futex resumed>) = 0 [pid 4981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4982] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4981] <... futex resumed>) = 0 [pid 4981] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4982] write(-1, "0x0000000000000001", 18 [pid 4981] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4982] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4982] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4981] <... futex resumed>) = 0 [pid 4982] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4981] exit_group(0) = ? [pid 4982] <... futex resumed>) = ? [pid 4982] +++ exited with 0 +++ [pid 4981] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4981, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18297", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18297", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18297/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18297/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18297/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18297") = 0 mkdir("./18298", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4983 ./strace-static-x86_64: Process 4983 attached [pid 4983] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4983] chdir("./18298") = 0 [pid 4983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4983] setpgid(0, 0) = 0 [pid 4983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4983] write(3, "1000", 4) = 4 [pid 4983] close(3) = 0 [pid 4983] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4983] write(1, "executing program\n", 18executing program ) = 18 [pid 4983] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4983] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4983] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4983] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4983] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4983] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4984 attached => {parent_tid=[4984]}, 88) = 4984 [pid 4984] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4983] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4984] <... futex resumed>) = 0 [pid 4984] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4984] <... futex resumed>) = 0 [pid 4984] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4984] <... futex resumed>) = 0 [pid 4984] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4983] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4984] <... futex resumed>) = 0 [pid 4984] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4984] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4984] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4983] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4983] exit_group(0) = ? [pid 4984] <... futex resumed>) = ? [pid 4984] +++ exited with 0 +++ [pid 4983] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4983, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18298", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18298", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18298/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18298/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18298/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18298") = 0 mkdir("./18299", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4985 ./strace-static-x86_64: Process 4985 attached [pid 4985] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4985] chdir("./18299") = 0 [pid 4985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4985] setpgid(0, 0) = 0 [pid 4985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4985] write(3, "1000", 4) = 4 [pid 4985] close(3) = 0 [pid 4985] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4985] write(1, "executing program\n", 18executing program ) = 18 [pid 4985] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4985] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4985] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4985] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4985] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4985] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4986 attached => {parent_tid=[4986]}, 88) = 4986 [pid 4986] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4985] rt_sigprocmask(SIG_SETMASK, [], [pid 4986] <... set_robust_list resumed>) = 0 [pid 4985] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4986] rt_sigprocmask(SIG_SETMASK, [], [pid 4985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4986] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4985] <... futex resumed>) = 0 [pid 4985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4986] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4985] <... futex resumed>) = 0 [pid 4986] <... futex resumed>) = 1 [pid 4985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4986] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4985] <... futex resumed>) = 0 [pid 4985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4986] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4985] <... futex resumed>) = 0 [pid 4986] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4986] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4985] <... futex resumed>) = 0 [pid 4986] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4986] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4985] <... futex resumed>) = 0 [pid 4986] <... futex resumed>) = 1 [pid 4985] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4986] write(-1, "0x0000000000000001", 18 [pid 4985] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4986] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 4986] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4985] <... futex resumed>) = 0 [pid 4986] <... futex resumed>) = 1 [pid 4985] exit_group(0 [pid 4986] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4985] <... exit_group resumed>) = ? [pid 4986] <... futex resumed>) = ? [pid 4986] +++ exited with 0 +++ [pid 4985] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4985, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18299", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18299", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18299/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18299/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18299/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18299") = 0 mkdir("./18300", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4987 ./strace-static-x86_64: Process 4987 attached [pid 4987] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4987] chdir("./18300") = 0 [pid 4987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4987] setpgid(0, 0) = 0 [pid 4987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4987] write(3, "1000", 4) = 4 [pid 4987] close(3) = 0 [pid 4987] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4987] write(1, "executing program\n", 18executing program ) = 18 [pid 4987] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4987] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4987] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4987] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4987] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4987] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4988 attached => {parent_tid=[4988]}, 88) = 4988 [pid 4988] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4988] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4988] <... futex resumed>) = 0 [pid 4988] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4988] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4988] <... futex resumed>) = 0 [pid 4988] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4988] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4988] <... futex resumed>) = 0 [pid 4988] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4988] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4987] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4988] <... futex resumed>) = 0 [pid 4987] <... futex resumed>) = 1 [pid 4987] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4988] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4988] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4988] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4987] <... futex resumed>) = 0 [pid 4987] exit_group(0) = ? [pid 4988] <... futex resumed>) = ? [pid 4988] +++ exited with 0 +++ [pid 4987] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4987, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18300", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18300", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18300/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18300/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18300/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18300") = 0 mkdir("./18301", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4989 ./strace-static-x86_64: Process 4989 attached [pid 4989] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4989] chdir("./18301") = 0 [pid 4989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4989] setpgid(0, 0) = 0 [pid 4989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4989] write(3, "1000", 4) = 4 [pid 4989] close(3) = 0 [pid 4989] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4989] write(1, "executing program\n", 18executing program ) = 18 [pid 4989] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4989] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4989] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4989] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4989] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4990 attached => {parent_tid=[4990]}, 88) = 4990 [pid 4990] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4990] rt_sigprocmask(SIG_SETMASK, [], [pid 4989] rt_sigprocmask(SIG_SETMASK, [], [pid 4990] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4989] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4990] <... futex resumed>) = 0 [pid 4990] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4990] <... futex resumed>) = 0 [pid 4990] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4990] <... futex resumed>) = 0 [pid 4989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4990] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4989] <... futex resumed>) = 0 [pid 4990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4989] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4990] <... futex resumed>) = 0 [pid 4989] <... futex resumed>) = 1 [pid 4989] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4990] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4990] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4989] <... futex resumed>) = 0 [pid 4990] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4989] exit_group(0) = ? [pid 4990] <... futex resumed>) = ? [pid 4990] +++ exited with 0 +++ [pid 4989] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4989, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18301", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18301", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18301/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18301/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18301/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18301") = 0 mkdir("./18302", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4991 ./strace-static-x86_64: Process 4991 attached [pid 4991] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4991] chdir("./18302") = 0 [pid 4991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4991] setpgid(0, 0) = 0 [pid 4991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4991] write(3, "1000", 4) = 4 [pid 4991] close(3) = 0 [pid 4991] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4991] write(1, "executing program\n", 18executing program ) = 18 [pid 4991] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4991] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4991] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4991] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4991] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4991] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4992 attached => {parent_tid=[4992]}, 88) = 4992 [pid 4992] set_robust_list(0x7f0a3d8de9a0, 24 [pid 4991] rt_sigprocmask(SIG_SETMASK, [], [pid 4992] <... set_robust_list resumed>) = 0 [pid 4991] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4992] rt_sigprocmask(SIG_SETMASK, [], [pid 4991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4992] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4991] <... futex resumed>) = 0 [pid 4991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4992] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4991] <... futex resumed>) = 0 [pid 4992] <... futex resumed>) = 1 [pid 4991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4992] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4991] <... futex resumed>) = 0 [pid 4991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4992] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4991] <... futex resumed>) = 0 [pid 4992] <... futex resumed>) = 1 [pid 4991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4992] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4991] <... futex resumed>) = 0 [pid 4991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4992] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4991] <... futex resumed>) = 0 [pid 4992] <... futex resumed>) = 1 [pid 4991] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4991] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4992] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4992] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4991] <... futex resumed>) = 0 [pid 4992] <... futex resumed>) = 1 [pid 4991] exit_group(0 [pid 4992] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4991] <... exit_group resumed>) = ? [pid 4992] <... futex resumed>) = ? [pid 4992] +++ exited with 0 +++ [pid 4991] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4991, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18302", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18302", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18302/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18302/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18302/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18302") = 0 mkdir("./18303", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4993 ./strace-static-x86_64: Process 4993 attached [pid 4993] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4993] chdir("./18303") = 0 [pid 4993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4993] setpgid(0, 0) = 0 [pid 4993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4993] write(3, "1000", 4) = 4 [pid 4993] close(3) = 0 [pid 4993] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4993] write(1, "executing program\n", 18executing program ) = 18 [pid 4993] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4993] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4993] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4993] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4993] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4993] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4994 attached => {parent_tid=[4994]}, 88) = 4994 [pid 4994] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4993] rt_sigprocmask(SIG_SETMASK, [], [pid 4994] rt_sigprocmask(SIG_SETMASK, [], [pid 4993] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4994] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 4993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4994] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 4993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4994] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4993] <... futex resumed>) = 0 [pid 4994] <... futex resumed>) = 1 [pid 4993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4994] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 4993] <... futex resumed>) = 0 [pid 4993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4994] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 4994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4993] <... futex resumed>) = 0 [pid 4994] <... futex resumed>) = 1 [pid 4993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4994] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 4993] <... futex resumed>) = 0 [pid 4994] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 4993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4994] <... futex resumed>) = 0 [pid 4993] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4993] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4994] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4994] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4993] <... futex resumed>) = 0 [pid 4994] <... futex resumed>) = 1 [pid 4993] exit_group(0 [pid 4994] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4993] <... exit_group resumed>) = ? [pid 4994] <... futex resumed>) = ? [pid 4994] +++ exited with 0 +++ [pid 4993] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4993, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18303", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18303", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18303/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18303/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18303/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18303") = 0 mkdir("./18304", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4995 ./strace-static-x86_64: Process 4995 attached [pid 4995] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4995] chdir("./18304") = 0 [pid 4995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4995] setpgid(0, 0) = 0 [pid 4995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4995] write(3, "1000", 4) = 4 [pid 4995] close(3) = 0 [pid 4995] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4995] write(1, "executing program\n", 18executing program ) = 18 [pid 4995] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4995] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4995] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4995] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4995] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4995] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4996 attached => {parent_tid=[4996]}, 88) = 4996 [pid 4996] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4996] <... futex resumed>) = 0 [pid 4996] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4996] <... futex resumed>) = 0 [pid 4996] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4996] <... futex resumed>) = 0 [pid 4996] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4995] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4996] <... futex resumed>) = 0 [pid 4995] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4996] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4996] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4996] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4995] <... futex resumed>) = 0 [pid 4995] exit_group(0) = ? [pid 4996] <... futex resumed>) = ? [pid 4996] +++ exited with 0 +++ [pid 4995] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4995, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18304", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18304", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18304/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18304/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18304/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18304") = 0 mkdir("./18305", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4997 ./strace-static-x86_64: Process 4997 attached [pid 4997] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4997] chdir("./18305") = 0 [pid 4997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4997] setpgid(0, 0) = 0 [pid 4997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4997] write(3, "1000", 4) = 4 [pid 4997] close(3) = 0 [pid 4997] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4997] write(1, "executing program\n", 18executing program ) = 18 [pid 4997] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4997] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4997] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4997] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4997] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 4998 attached => {parent_tid=[4998]}, 88) = 4998 [pid 4998] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 4998] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4998] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4998] <... futex resumed>) = 0 [pid 4998] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 4998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4998] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4998] <... futex resumed>) = 0 [pid 4998] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 4998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4998] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4998] <... futex resumed>) = 0 [pid 4998] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 4998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4998] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4997] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4997] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... futex resumed>) = 0 [pid 4998] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 4998] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4997] <... futex resumed>) = 0 [pid 4997] exit_group(0) = ? [pid 4998] +++ exited with 0 +++ [pid 4997] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4997, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18305", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18305", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18305/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18305/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18305/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18305") = 0 mkdir("./18306", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 4999 ./strace-static-x86_64: Process 4999 attached [pid 4999] set_robust_list(0x55558931b6a0, 24) = 0 [pid 4999] chdir("./18306") = 0 [pid 4999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4999] setpgid(0, 0) = 0 [pid 4999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1000", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4999] write(1, "executing program\n", 18executing program ) = 18 [pid 4999] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 4999] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 4999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 4999] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4999] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 4999] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5000 attached [pid 5000] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5000] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... clone3 resumed> => {parent_tid=[5000]}, 88) = 5000 [pid 4999] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 4999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5000] <... futex resumed>) = 0 [pid 5000] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... futex resumed>) = 0 [pid 5000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5000] <... futex resumed>) = 0 [pid 5000] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5000] <... futex resumed>) = 0 [pid 5000] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5000] <... futex resumed>) = 0 [pid 4999] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5000] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5000] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... futex resumed>) = 0 [pid 4999] exit_group(0) = ? [pid 5000] <... futex resumed>) = ? [pid 5000] +++ exited with 0 +++ [pid 4999] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4999, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18306", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18306", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18306/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18306/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18306/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18306") = 0 mkdir("./18307", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5001 ./strace-static-x86_64: Process 5001 attached [pid 5001] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5001] chdir("./18307") = 0 [pid 5001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5001] setpgid(0, 0) = 0 [pid 5001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5001] write(3, "1000", 4) = 4 [pid 5001] close(3) = 0 [pid 5001] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5001] write(1, "executing program\n", 18executing program ) = 18 [pid 5001] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5001] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5001] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5001] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5001] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5001] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5002 attached => {parent_tid=[5002]}, 88) = 5002 [pid 5002] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5001] rt_sigprocmask(SIG_SETMASK, [], [pid 5002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5002] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5001] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5002] <... futex resumed>) = 0 [pid 5002] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5002] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5002] <... futex resumed>) = 0 [pid 5002] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5002] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5002] <... futex resumed>) = 0 [pid 5002] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5002] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5001] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5002] <... futex resumed>) = 0 [pid 5001] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5002] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5002] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5001] <... futex resumed>) = 0 [pid 5002] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5001] exit_group(0) = ? [pid 5002] <... futex resumed>) = ? [pid 5002] +++ exited with 0 +++ [pid 5001] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5001, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18307", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18307", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18307/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18307/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18307/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18307") = 0 mkdir("./18308", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5003 ./strace-static-x86_64: Process 5003 attached [pid 5003] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5003] chdir("./18308") = 0 [pid 5003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5003] setpgid(0, 0) = 0 [pid 5003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "1000", 4) = 4 [pid 5003] close(3) = 0 [pid 5003] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5003] write(1, "executing program\n", 18executing program ) = 18 [pid 5003] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5003] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5003] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5003] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5003] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5004 attached => {parent_tid=[5004]}, 88) = 5004 [pid 5004] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5004] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5004] <... futex resumed>) = 0 [pid 5004] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5004] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5004] <... futex resumed>) = 0 [pid 5003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5004] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5004] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5004] <... futex resumed>) = 0 [pid 5004] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5004] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5004] <... futex resumed>) = 0 [pid 5003] <... futex resumed>) = 1 [pid 5003] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5004] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5004] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5003] <... futex resumed>) = 0 [pid 5004] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] exit_group(0) = ? [pid 5004] <... futex resumed>) = ? [pid 5004] +++ exited with 0 +++ [pid 5003] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5003, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18308", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18308", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18308/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18308/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18308/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18308") = 0 mkdir("./18309", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5005 ./strace-static-x86_64: Process 5005 attached [pid 5005] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5005] chdir("./18309") = 0 [pid 5005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5005] setpgid(0, 0) = 0 [pid 5005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5005] write(3, "1000", 4) = 4 [pid 5005] close(3) = 0 [pid 5005] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5005] write(1, "executing program\n", 18executing program ) = 18 [pid 5005] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5005] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5005] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5005] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5005] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5005] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5006 attached [pid 5006] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5005] <... clone3 resumed> => {parent_tid=[5006]}, 88) = 5006 [pid 5006] <... set_robust_list resumed>) = 0 [pid 5006] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5005] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5006] <... futex resumed>) = 0 [pid 5006] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5006] <... futex resumed>) = 0 [pid 5006] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5006] <... futex resumed>) = 0 [pid 5006] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5005] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5006] <... futex resumed>) = 0 [pid 5005] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5006] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5006] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5005] <... futex resumed>) = 0 [pid 5006] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5005] exit_group(0) = ? [pid 5006] <... futex resumed>) = ? [pid 5006] +++ exited with 0 +++ [pid 5005] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5005, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18309", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18309", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18309/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18309/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18309/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18309") = 0 mkdir("./18310", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5007 ./strace-static-x86_64: Process 5007 attached [pid 5007] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5007] chdir("./18310") = 0 [pid 5007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5007] setpgid(0, 0) = 0 [pid 5007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "1000", 4) = 4 [pid 5007] close(3) = 0 [pid 5007] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5007] write(1, "executing program\n", 18executing program ) = 18 [pid 5007] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5007] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5007] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5007] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5007] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5007] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5008 attached => {parent_tid=[5008]}, 88) = 5008 [pid 5008] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5007] rt_sigprocmask(SIG_SETMASK, [], [pid 5008] <... set_robust_list resumed>) = 0 [pid 5007] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5008] rt_sigprocmask(SIG_SETMASK, [], [pid 5007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5008] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5007] <... futex resumed>) = 0 [pid 5007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5008] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5007] <... futex resumed>) = 0 [pid 5007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5008] <... futex resumed>) = 1 [pid 5008] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5007] <... futex resumed>) = 0 [pid 5007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5008] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5007] <... futex resumed>) = 0 [pid 5008] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5007] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5007] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5008] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5008] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5008] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5007] <... futex resumed>) = 0 [pid 5007] exit_group(0) = ? [pid 5008] +++ exited with 0 +++ [pid 5007] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5007, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18310", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18310", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18310/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18310/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18310/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18310") = 0 mkdir("./18311", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5009 ./strace-static-x86_64: Process 5009 attached [pid 5009] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5009] chdir("./18311") = 0 [pid 5009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5009] setpgid(0, 0) = 0 [pid 5009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5009] write(3, "1000", 4) = 4 [pid 5009] close(3) = 0 [pid 5009] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5009] write(1, "executing program\n", 18executing program ) = 18 [pid 5009] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5009] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5009] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5009] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5009] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5009] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5010 attached => {parent_tid=[5010]}, 88) = 5010 [pid 5010] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5009] rt_sigprocmask(SIG_SETMASK, [], [pid 5010] <... set_robust_list resumed>) = 0 [pid 5009] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5010] rt_sigprocmask(SIG_SETMASK, [], [pid 5009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5009] <... futex resumed>) = 0 [pid 5009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... futex resumed>) = 0 [pid 5010] <... futex resumed>) = 1 [pid 5009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5009] <... futex resumed>) = 0 [pid 5009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... futex resumed>) = 0 [pid 5010] <... futex resumed>) = 1 [pid 5009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5010] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5009] <... futex resumed>) = 0 [pid 5009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... futex resumed>) = 0 [pid 5010] <... futex resumed>) = 1 [pid 5009] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5009] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5010] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5010] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5009] <... futex resumed>) = 0 [pid 5010] <... futex resumed>) = 1 [pid 5009] exit_group(0 [pid 5010] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5009] <... exit_group resumed>) = ? [pid 5010] <... futex resumed>) = ? [pid 5010] +++ exited with 0 +++ [pid 5009] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5009, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18311", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18311", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18311/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18311/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18311/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18311") = 0 mkdir("./18312", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5011 ./strace-static-x86_64: Process 5011 attached [pid 5011] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5011] chdir("./18312") = 0 [pid 5011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5011] setpgid(0, 0) = 0 [pid 5011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5011] write(3, "1000", 4) = 4 [pid 5011] close(3) = 0 [pid 5011] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5011] write(1, "executing program\n", 18executing program ) = 18 [pid 5011] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5011] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5011] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5011] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5011] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5011] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5011] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5012 attached => {parent_tid=[5012]}, 88) = 5012 [pid 5012] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5011] rt_sigprocmask(SIG_SETMASK, [], [pid 5012] <... set_robust_list resumed>) = 0 [pid 5011] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5012] rt_sigprocmask(SIG_SETMASK, [], [pid 5011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5012] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5011] <... futex resumed>) = 0 [pid 5011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5012] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5011] <... futex resumed>) = 0 [pid 5011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5012] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5011] <... futex resumed>) = 0 [pid 5011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5012] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5011] <... futex resumed>) = 0 [pid 5011] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5011] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5012] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5012] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5011] <... futex resumed>) = 0 [pid 5011] exit_group(0) = ? [pid 5012] +++ exited with 0 +++ [pid 5011] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5011, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18312", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18312", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18312/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18312/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18312/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18312") = 0 mkdir("./18313", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5013 ./strace-static-x86_64: Process 5013 attached [pid 5013] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5013] chdir("./18313") = 0 [pid 5013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5013] setpgid(0, 0) = 0 [pid 5013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5013] write(3, "1000", 4) = 4 [pid 5013] close(3) = 0 [pid 5013] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5013] write(1, "executing program\n", 18) = 18 [pid 5013] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5013] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5013] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5013] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5013] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5013] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5014]}, 88) = 5014 ./strace-static-x86_64: Process 5014 attached [pid 5013] rt_sigprocmask(SIG_SETMASK, [], [pid 5014] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5014] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5014] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5013] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5014] <... futex resumed>) = 0 [pid 5013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5014] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5013] <... futex resumed>) = 0 [pid 5013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5014] <... futex resumed>) = 0 [pid 5014] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5014] <... futex resumed>) = 0 [pid 5013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5014] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5013] <... futex resumed>) = 0 [pid 5013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5013] <... futex resumed>) = 0 [pid 5013] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5013] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5014] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5014] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5013] <... futex resumed>) = 0 [pid 5014] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5013] exit_group(0) = ? [pid 5014] <... futex resumed>) = ? [pid 5014] +++ exited with 0 +++ [pid 5013] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5013, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18313", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18313", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18313/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18313/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18313/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18313") = 0 mkdir("./18314", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5015 ./strace-static-x86_64: Process 5015 attached [pid 5015] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5015] chdir("./18314") = 0 [pid 5015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5015] setpgid(0, 0) = 0 [pid 5015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "1000", 4) = 4 [pid 5015] close(3) = 0 [pid 5015] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5015] write(1, "executing program\n", 18) = 18 [pid 5015] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5015] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5015] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5015] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5015] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5015] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5016 attached => {parent_tid=[5016]}, 88) = 5016 [pid 5016] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5016] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5016] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5016] <... futex resumed>) = 0 [pid 5015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5016] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5016] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 5015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5016] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5015] <... futex resumed>) = 0 [pid 5015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5016] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5016] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5015] <... futex resumed>) = 0 [pid 5015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5016] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5015] <... futex resumed>) = 0 [pid 5016] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5015] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5015] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5016] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5016] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5016] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5016] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5015] <... futex resumed>) = 0 [pid 5015] exit_group(0) = ? [pid 5016] <... futex resumed>) = ? [pid 5016] +++ exited with 0 +++ [pid 5015] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5015, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18314", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18314", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18314/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18314/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18314/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18314") = 0 mkdir("./18315", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5017 ./strace-static-x86_64: Process 5017 attached [pid 5017] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5017] chdir("./18315") = 0 [pid 5017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5017] setpgid(0, 0) = 0 [pid 5017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1000", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5017] write(1, "executing program\n", 18executing program ) = 18 [pid 5017] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5017] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5017] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5017] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5017] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5017] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5018 attached => {parent_tid=[5018]}, 88) = 5018 [pid 5018] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5017] rt_sigprocmask(SIG_SETMASK, [], [pid 5018] <... set_robust_list resumed>) = 0 [pid 5017] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5018] rt_sigprocmask(SIG_SETMASK, [], [pid 5017] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5018] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5017] <... futex resumed>) = 0 [pid 5017] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5018] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5018] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5017] <... futex resumed>) = 0 [pid 5018] <... futex resumed>) = 1 [pid 5018] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5017] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5017] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5018] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5018] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5017] <... futex resumed>) = 0 [pid 5018] <... futex resumed>) = 1 [pid 5017] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5018] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5017] <... futex resumed>) = 0 [pid 5017] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5018] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5018] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5017] <... futex resumed>) = 0 [pid 5018] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5017] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5017] <... futex resumed>) = 0 [pid 5018] write(-1, "0x0000000000000001", 18 [pid 5017] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5018] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5018] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5017] <... futex resumed>) = 0 [pid 5018] <... futex resumed>) = 1 [pid 5017] exit_group(0 [pid 5018] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5017] <... exit_group resumed>) = ? [pid 5018] <... futex resumed>) = ? [pid 5018] +++ exited with 0 +++ [pid 5017] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5017, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18315", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18315", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18315/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18315/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18315/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18315") = 0 mkdir("./18316", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5020 ./strace-static-x86_64: Process 5020 attached [pid 5020] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5020] chdir("./18316") = 0 [pid 5020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5020] setpgid(0, 0) = 0 [pid 5020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5020] write(3, "1000", 4) = 4 [pid 5020] close(3) = 0 [pid 5020] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5020] write(1, "executing program\n", 18) = 18 [pid 5020] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5020] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5020] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5021 attached [pid 5021] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5021] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5021] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5020] <... clone3 resumed> => {parent_tid=[5021]}, 88) = 5021 [pid 5020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5021] <... futex resumed>) = 0 [pid 5021] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5021] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5021] <... futex resumed>) = 0 [pid 5020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5021] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5020] <... futex resumed>) = 0 [pid 5021] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5021] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5020] <... futex resumed>) = 0 [pid 5021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5021] <... futex resumed>) = 0 [pid 5020] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5021] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5020] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5021] <... futex resumed>) = 0 [pid 5020] <... futex resumed>) = 1 [pid 5020] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5021] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5021] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5021] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5020] <... futex resumed>) = 0 [pid 5020] exit_group(0) = ? [pid 5021] <... futex resumed>) = ? [pid 5021] +++ exited with 0 +++ [pid 5020] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5020, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18316", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18316", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18316/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18316/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18316/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18316") = 0 mkdir("./18317", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5022 ./strace-static-x86_64: Process 5022 attached [pid 5022] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5022] chdir("./18317") = 0 [pid 5022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5022] setpgid(0, 0) = 0 [pid 5022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5022] write(3, "1000", 4) = 4 [pid 5022] close(3) = 0 [pid 5022] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5022] write(1, "executing program\n", 18executing program ) = 18 [pid 5022] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5022] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5022] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5022] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5023 attached [pid 5023] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5023] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5022] <... clone3 resumed> => {parent_tid=[5023]}, 88) = 5023 [pid 5022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5023] <... futex resumed>) = 0 [pid 5023] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5023] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5023] <... futex resumed>) = 0 [pid 5023] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5023] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5023] <... futex resumed>) = 0 [pid 5023] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5022] <... futex resumed>) = 0 [pid 5022] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5022] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5023] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5023] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5022] <... futex resumed>) = 0 [pid 5022] exit_group(0) = ? [pid 5023] +++ exited with 0 +++ [pid 5022] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18317", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18317", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18317/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18317/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18317/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18317") = 0 mkdir("./18318", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5024 ./strace-static-x86_64: Process 5024 attached [pid 5024] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5024] chdir("./18318") = 0 [pid 5024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5024] setpgid(0, 0) = 0 [pid 5024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5024] write(3, "1000", 4) = 4 [pid 5024] close(3) = 0 [pid 5024] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5024] write(1, "executing program\n", 18) = 18 [pid 5024] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5024] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5025 attached => {parent_tid=[5025]}, 88) = 5025 [pid 5025] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5025] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5025] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5025] <... futex resumed>) = 0 [pid 5024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5025] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5025] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5025] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5025] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5024] <... futex resumed>) = 0 [pid 5024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5025] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5024] <... futex resumed>) = 0 [pid 5025] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5025] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5024] <... futex resumed>) = 0 [pid 5024] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5024] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5025] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5025] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5024] <... futex resumed>) = 0 [pid 5025] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5024] exit_group(0) = ? [pid 5025] <... futex resumed>) = ? [pid 5025] +++ exited with 0 +++ [pid 5024] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5024, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18318", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18318", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18318/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18318/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18318/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18318") = 0 mkdir("./18319", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5026 ./strace-static-x86_64: Process 5026 attached [pid 5026] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5026] chdir("./18319") = 0 [pid 5026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5026] setpgid(0, 0) = 0 [pid 5026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "1000", 4) = 4 [pid 5026] close(3) = 0 [pid 5026] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5026] write(1, "executing program\n", 18) = 18 [pid 5026] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5026] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5026] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5026] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5026] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5026] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5027 attached => {parent_tid=[5027]}, 88) = 5027 [pid 5027] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5027] <... futex resumed>) = 0 [pid 5027] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5027] <... futex resumed>) = 0 [pid 5027] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5026] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5027] <... futex resumed>) = 0 [pid 5026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5027] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5026] <... futex resumed>) = 0 [pid 5026] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5026] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5027] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5027] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5026] <... futex resumed>) = 0 [pid 5027] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5026] exit_group(0) = ? [pid 5027] <... futex resumed>) = ? [pid 5027] +++ exited with 0 +++ [pid 5026] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5026, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18319", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18319", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18319/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18319/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18319/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18319") = 0 mkdir("./18320", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5028 ./strace-static-x86_64: Process 5028 attached [pid 5028] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5028] chdir("./18320") = 0 [pid 5028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5028] setpgid(0, 0) = 0 [pid 5028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5028] write(3, "1000", 4) = 4 [pid 5028] close(3) = 0 [pid 5028] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5028] write(1, "executing program\n", 18executing program ) = 18 [pid 5028] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5028] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5028] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5028] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5028] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5028] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5029 attached => {parent_tid=[5029]}, 88) = 5029 [pid 5029] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5028] rt_sigprocmask(SIG_SETMASK, [], [pid 5029] <... set_robust_list resumed>) = 0 [pid 5028] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5029] rt_sigprocmask(SIG_SETMASK, [], [pid 5028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5028] <... futex resumed>) = 0 [pid 5028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5029] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] <... futex resumed>) = 0 [pid 5029] <... futex resumed>) = 1 [pid 5028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5028] <... futex resumed>) = 0 [pid 5028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5029] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5028] <... futex resumed>) = 0 [pid 5029] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5029] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5028] <... futex resumed>) = 0 [pid 5029] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5029] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] <... futex resumed>) = 0 [pid 5029] <... futex resumed>) = 1 [pid 5028] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5028] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5029] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5029] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5028] <... futex resumed>) = 0 [pid 5028] exit_group(0) = ? [pid 5029] <... futex resumed>) = ? [pid 5029] +++ exited with 0 +++ [pid 5028] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5028, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18320", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18320", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18320/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18320/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18320/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18320") = 0 mkdir("./18321", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5030 ./strace-static-x86_64: Process 5030 attached [pid 5030] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5030] chdir("./18321") = 0 [pid 5030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5030] setpgid(0, 0) = 0 [pid 5030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5030] write(3, "1000", 4) = 4 [pid 5030] close(3) = 0 [pid 5030] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5030] write(1, "executing program\n", 18executing program ) = 18 [pid 5030] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5030] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5030] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5030] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5030] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5030] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5031 attached => {parent_tid=[5031]}, 88) = 5031 [pid 5031] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5031] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5031] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5031] <... futex resumed>) = 0 [pid 5030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5031] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5030] <... futex resumed>) = 0 [pid 5030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5031] <... futex resumed>) = 0 [pid 5031] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5031] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5031] <... futex resumed>) = 0 [pid 5030] <... futex resumed>) = 1 [pid 5031] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5030] <... futex resumed>) = 0 [pid 5030] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5030] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5031] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5031] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5030] <... futex resumed>) = 0 [pid 5030] exit_group(0 [pid 5031] ????( [pid 5030] <... exit_group resumed>) = ? [pid 5031] <... ???? resumed>) = ? [pid 5031] +++ exited with 0 +++ [pid 5030] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5030, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18321", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18321", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18321/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18321/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18321/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18321") = 0 mkdir("./18322", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5032 ./strace-static-x86_64: Process 5032 attached [pid 5032] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5032] chdir("./18322") = 0 [pid 5032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5032] setpgid(0, 0) = 0 [pid 5032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5032] write(3, "1000", 4) = 4 [pid 5032] close(3) = 0 [pid 5032] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5032] write(1, "executing program\n", 18) = 18 [pid 5032] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5032] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5032] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5033 attached => {parent_tid=[5033]}, 88) = 5033 [pid 5033] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5032] rt_sigprocmask(SIG_SETMASK, [], [pid 5033] rt_sigprocmask(SIG_SETMASK, [], [pid 5032] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5033] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5033] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5032] <... futex resumed>) = 0 [pid 5033] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5032] <... futex resumed>) = 0 [pid 5032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5033] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5032] <... futex resumed>) = 0 [pid 5032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5032] <... futex resumed>) = 0 [pid 5032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5033] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5032] <... futex resumed>) = 0 [pid 5032] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5033] <... futex resumed>) = 0 [pid 5032] <... futex resumed>) = 1 [pid 5032] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5033] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5033] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5033] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5032] <... futex resumed>) = 0 [pid 5032] exit_group(0) = ? [pid 5033] <... futex resumed>) = ? [pid 5033] +++ exited with 0 +++ [pid 5032] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5032, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18322", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18322", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18322/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18322/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18322/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18322") = 0 mkdir("./18323", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5034 ./strace-static-x86_64: Process 5034 attached [pid 5034] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5034] chdir("./18323") = 0 [pid 5034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5034] setpgid(0, 0) = 0 [pid 5034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1000", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5034] write(1, "executing program\n", 18) = 18 [pid 5034] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5034] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5034] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5034] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5035 attached => {parent_tid=[5035]}, 88) = 5035 [pid 5035] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5035] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5035] <... futex resumed>) = 0 [pid 5035] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5035] <... futex resumed>) = 0 [pid 5034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5034] <... futex resumed>) = 0 [pid 5035] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5034] <... futex resumed>) = 0 [pid 5034] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5034] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5035] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5035] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5034] <... futex resumed>) = 0 [pid 5035] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5034] exit_group(0) = ? [pid 5035] <... futex resumed>) = ? [pid 5035] +++ exited with 0 +++ [pid 5034] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18323", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18323", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18323/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18323/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18323/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18323") = 0 mkdir("./18324", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5036 ./strace-static-x86_64: Process 5036 attached [pid 5036] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5036] chdir("./18324") = 0 [pid 5036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5036] setpgid(0, 0) = 0 [pid 5036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5036] write(3, "1000", 4) = 4 [pid 5036] close(3) = 0 [pid 5036] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5036] write(1, "executing program\n", 18) = 18 [pid 5036] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5036] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5036] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5037 attached [pid 5037] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5037] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5037] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5036] <... clone3 resumed> => {parent_tid=[5037]}, 88) = 5037 [pid 5036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5037] <... futex resumed>) = 0 [pid 5036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5036] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5036] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5037] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5037] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5036] <... futex resumed>) = 0 [pid 5037] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5036] exit_group(0) = ? [pid 5037] <... futex resumed>) = 231 [pid 5037] +++ exited with 0 +++ [pid 5036] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5036, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18324", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18324", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18324/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18324/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18324/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18324") = 0 mkdir("./18325", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5038 ./strace-static-x86_64: Process 5038 attached [pid 5038] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5038] chdir("./18325") = 0 [pid 5038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5038] setpgid(0, 0) = 0 [pid 5038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5038] write(3, "1000", 4) = 4 [pid 5038] close(3) = 0 [pid 5038] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5038] write(1, "executing program\n", 18executing program ) = 18 [pid 5038] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5038] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5038] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5038] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5038] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5039 attached => {parent_tid=[5039]}, 88) = 5039 [pid 5039] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5038] rt_sigprocmask(SIG_SETMASK, [], [pid 5039] <... set_robust_list resumed>) = 0 [pid 5039] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5039] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5039] <... futex resumed>) = 0 [pid 5039] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5039] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5039] <... futex resumed>) = 0 [pid 5039] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5039] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5039] <... futex resumed>) = 0 [pid 5039] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5039] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5038] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5039] <... futex resumed>) = 0 [pid 5038] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5039] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5039] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5038] <... futex resumed>) = 0 [pid 5038] exit_group(0) = ? [pid 5039] +++ exited with 0 +++ [pid 5038] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18325", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18325", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18325/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18325/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18325/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18325") = 0 mkdir("./18326", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5040 ./strace-static-x86_64: Process 5040 attached [pid 5040] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5040] chdir("./18326") = 0 [pid 5040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5040] setpgid(0, 0) = 0 [pid 5040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5040] write(3, "1000", 4) = 4 [pid 5040] close(3) = 0 [pid 5040] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5040] write(1, "executing program\n", 18) = 18 [pid 5040] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5040] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5040] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5040] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5040] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5041 attached [pid 5041] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] <... clone3 resumed> => {parent_tid=[5041]}, 88) = 5041 [pid 5040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5041] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5041] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5041] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5041] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5040] <... futex resumed>) = 0 [pid 5041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5040] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5041] <... futex resumed>) = 0 [pid 5040] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5041] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5041] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5040] <... futex resumed>) = 0 [pid 5041] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5040] exit_group(0) = ? [pid 5041] <... futex resumed>) = ? [pid 5041] +++ exited with 0 +++ [pid 5040] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5040, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18326", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18326", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18326/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18326/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18326/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18326") = 0 mkdir("./18327", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5042 ./strace-static-x86_64: Process 5042 attached [pid 5042] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5042] chdir("./18327") = 0 [pid 5042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5042] setpgid(0, 0) = 0 [pid 5042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5042] write(3, "1000", 4) = 4 [pid 5042] close(3) = 0 [pid 5042] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5042] write(1, "executing program\n", 18) = 18 [pid 5042] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5042] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5042] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5042] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5042] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5043 attached => {parent_tid=[5043]}, 88) = 5043 [pid 5043] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5043] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5043] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5042] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5043] <... futex resumed>) = 0 [pid 5043] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5043] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5043] <... futex resumed>) = 0 [pid 5043] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5043] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5043] <... futex resumed>) = 0 [pid 5042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5043] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5042] <... futex resumed>) = 0 [pid 5042] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5043] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5042] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5043] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5042] <... futex resumed>) = 0 [pid 5043] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5042] exit_group(0) = ? [pid 5043] <... futex resumed>) = ? [pid 5043] +++ exited with 0 +++ [pid 5042] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5042, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18327", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18327", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18327/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18327/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18327/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18327") = 0 mkdir("./18328", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5044 ./strace-static-x86_64: Process 5044 attached [pid 5044] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5044] chdir("./18328") = 0 [pid 5044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5044] setpgid(0, 0) = 0 [pid 5044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "1000", 4) = 4 [pid 5044] close(3) = 0 [pid 5044] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5044] write(1, "executing program\n", 18) = 18 [pid 5044] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5044] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5044] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5044] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5044] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5045 attached => {parent_tid=[5045]}, 88) = 5045 [pid 5045] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5045] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5044] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5045] <... futex resumed>) = 0 [pid 5044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5045] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5044] <... futex resumed>) = 0 [pid 5044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5045] <... futex resumed>) = 0 [pid 5044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5044] <... futex resumed>) = 0 [pid 5045] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5044] <... futex resumed>) = 0 [pid 5044] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5044] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5045] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5045] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5044] <... futex resumed>) = 0 [pid 5045] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5044] exit_group(0) = ? [pid 5045] <... futex resumed>) = ? [pid 5045] +++ exited with 0 +++ [pid 5044] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5044, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18328", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18328", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18328/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18328/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18328/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18328") = 0 mkdir("./18329", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5046 ./strace-static-x86_64: Process 5046 attached [pid 5046] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5046] chdir("./18329") = 0 [pid 5046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5046] setpgid(0, 0) = 0 [pid 5046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5046] write(3, "1000", 4) = 4 [pid 5046] close(3) = 0 executing program [pid 5046] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5046] write(1, "executing program\n", 18) = 18 [pid 5046] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5046] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5046] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5046] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5046] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5047 attached [pid 5047] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5047] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5047] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5046] <... clone3 resumed> => {parent_tid=[5047]}, 88) = 5047 [pid 5046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5047] <... futex resumed>) = 0 [pid 5046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5047] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5047] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5046] <... futex resumed>) = 0 [pid 5046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5047] <... futex resumed>) = 0 [pid 5047] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5047] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5046] <... futex resumed>) = 0 [pid 5047] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5047] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5046] <... futex resumed>) = 0 [pid 5046] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5047] write(-1, "0x0000000000000001", 18 [pid 5046] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5047] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5047] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5046] <... futex resumed>) = 0 [pid 5047] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5046] exit_group(0 [pid 5047] <... futex resumed>) = ? [pid 5046] <... exit_group resumed>) = ? [pid 5047] +++ exited with 0 +++ [pid 5046] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5046, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18329", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18329", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18329/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18329/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18329/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18329") = 0 mkdir("./18330", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5048 ./strace-static-x86_64: Process 5048 attached [pid 5048] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5048] chdir("./18330") = 0 [pid 5048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5048] setpgid(0, 0) = 0 [pid 5048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5048] write(3, "1000", 4) = 4 [pid 5048] close(3) = 0 [pid 5048] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5048] write(1, "executing program\n", 18executing program ) = 18 [pid 5048] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5048] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5048] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5048] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5048] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5048] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5049 attached [pid 5049] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5049] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5048] <... clone3 resumed> => {parent_tid=[5049]}, 88) = 5049 [pid 5048] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5049] <... futex resumed>) = 0 [pid 5049] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5049] <... futex resumed>) = 0 [pid 5048] <... futex resumed>) = 0 [pid 5049] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5048] <... futex resumed>) = 0 [pid 5048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5048] <... futex resumed>) = 0 [pid 5049] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5048] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5048] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5049] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5049] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5048] <... futex resumed>) = 0 [pid 5049] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5048] exit_group(0) = ? [pid 5049] <... futex resumed>) = ? [pid 5049] +++ exited with 0 +++ [pid 5048] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5048, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18330", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18330", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18330/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18330/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18330/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18330") = 0 mkdir("./18331", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5050 attached , child_tidptr=0x55558931b690) = 5050 [pid 5050] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5050] chdir("./18331") = 0 [pid 5050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] setpgid(0, 0) = 0 [pid 5050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1000", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5050] write(1, "executing program\n", 18executing program ) = 18 [pid 5050] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5050] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5050] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5050] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5051 attached [pid 5051] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5051] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] <... clone3 resumed> => {parent_tid=[5051]}, 88) = 5051 [pid 5050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5051] <... futex resumed>) = 0 [pid 5051] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5051] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5051] <... futex resumed>) = 0 [pid 5051] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5050] <... futex resumed>) = 1 [pid 5051] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5051] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5051] <... futex resumed>) = 0 [pid 5051] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5051] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5050] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5051] <... futex resumed>) = 0 [pid 5050] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5051] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5051] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5051] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5050] exit_group(0) = ? [pid 5051] <... futex resumed>) = ? [pid 5051] +++ exited with 0 +++ [pid 5050] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5050, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18331", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18331", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18331/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18331/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18331/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18331") = 0 mkdir("./18332", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5052 ./strace-static-x86_64: Process 5052 attached [pid 5052] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5052] chdir("./18332") = 0 [pid 5052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5052] setpgid(0, 0) = 0 [pid 5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5052] write(3, "1000", 4) = 4 [pid 5052] close(3) = 0 [pid 5052] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5052] write(1, "executing program\n", 18executing program ) = 18 [pid 5052] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5052] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5052] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5052] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5052] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5053 attached => {parent_tid=[5053]}, 88) = 5053 [pid 5053] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5053] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5053] <... futex resumed>) = 0 [pid 5053] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5053] <... futex resumed>) = 0 [pid 5053] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5052] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5053] <... futex resumed>) = 0 [pid 5052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5052] <... futex resumed>) = 0 [pid 5053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5052] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] <... futex resumed>) = 0 [pid 5053] write(-1, "0x0000000000000001", 18 [pid 5052] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5053] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5053] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5052] <... futex resumed>) = 0 [pid 5053] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5052] exit_group(0) = ? [pid 5053] <... futex resumed>) = 231 [pid 5053] +++ exited with 0 +++ [pid 5052] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18332", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18332", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18332/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18332/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18332/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18332") = 0 mkdir("./18333", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5054 ./strace-static-x86_64: Process 5054 attached [pid 5054] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5054] chdir("./18333") = 0 [pid 5054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5054] setpgid(0, 0) = 0 [pid 5054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "1000", 4) = 4 [pid 5054] close(3) = 0 [pid 5054] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5054] write(1, "executing program\n", 18) = 18 [pid 5054] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5054] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5054] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5054] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5054] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5055 attached => {parent_tid=[5055]}, 88) = 5055 [pid 5055] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5055] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5055] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5055] <... futex resumed>) = 0 [pid 5055] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5054] <... futex resumed>) = 0 [pid 5055] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5054] <... futex resumed>) = 0 [pid 5055] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5054] <... futex resumed>) = 0 [pid 5054] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5054] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5055] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5055] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5054] <... futex resumed>) = 0 [pid 5055] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5054] exit_group(0) = ? [pid 5055] <... futex resumed>) = ? [pid 5055] +++ exited with 0 +++ [pid 5054] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5054, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18333", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18333", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18333/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18333/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18333/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18333") = 0 mkdir("./18334", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5056 ./strace-static-x86_64: Process 5056 attached [pid 5056] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5056] chdir("./18334") = 0 [pid 5056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] setpgid(0, 0) = 0 [pid 5056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5056] write(3, "1000", 4) = 4 [pid 5056] close(3) = 0 [pid 5056] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5056] write(1, "executing program\n", 18executing program ) = 18 [pid 5056] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5056] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5056] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5056] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5056] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5056] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5057 attached => {parent_tid=[5057]}, 88) = 5057 [pid 5057] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5056] rt_sigprocmask(SIG_SETMASK, [], [pid 5057] <... set_robust_list resumed>) = 0 [pid 5056] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5057] rt_sigprocmask(SIG_SETMASK, [], [pid 5056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5056] <... futex resumed>) = 0 [pid 5056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... futex resumed>) = 0 [pid 5057] <... futex resumed>) = 1 [pid 5056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5056] <... futex resumed>) = 0 [pid 5056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5056] <... futex resumed>) = 0 [pid 5057] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5056] <... futex resumed>) = 0 [pid 5057] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5056] <... futex resumed>) = 0 [pid 5057] <... futex resumed>) = 1 [pid 5056] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5056] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5057] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5057] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5056] <... futex resumed>) = 0 [pid 5057] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5056] exit_group(0) = ? [pid 5057] <... futex resumed>) = ? [pid 5057] +++ exited with 0 +++ [pid 5056] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5056, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18334", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18334", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18334/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18334/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18334/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18334") = 0 mkdir("./18335", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5058 ./strace-static-x86_64: Process 5058 attached [pid 5058] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5058] chdir("./18335") = 0 [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] setpgid(0, 0) = 0 [pid 5058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1000", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5058] write(1, "executing program\n", 18) = 18 [pid 5058] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5058] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5058] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5058] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5059 attached => {parent_tid=[5059]}, 88) = 5059 [pid 5059] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5058] rt_sigprocmask(SIG_SETMASK, [], [pid 5059] <... set_robust_list resumed>) = 0 [pid 5059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5059] <... futex resumed>) = 0 [pid 5058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5058] <... futex resumed>) = 0 [pid 5059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5058] <... futex resumed>) = 0 [pid 5059] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5058] <... futex resumed>) = 0 [pid 5059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5058] <... futex resumed>) = 0 [pid 5059] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5058] <... futex resumed>) = 0 [pid 5059] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5058] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5058] <... futex resumed>) = 0 [pid 5059] write(-1, "0x0000000000000001", 18 [pid 5058] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5059] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5059] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5058] <... futex resumed>) = 0 [pid 5058] exit_group(0) = ? [pid 5059] +++ exited with 0 +++ [pid 5058] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5058, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18335", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18335", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18335/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18335/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18335/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18335") = 0 mkdir("./18336", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5060 ./strace-static-x86_64: Process 5060 attached [pid 5060] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5060] chdir("./18336") = 0 [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5060] setpgid(0, 0) = 0 [pid 5060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1000", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5060] write(1, "executing program\n", 18executing program ) = 18 [pid 5060] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5060] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5060] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5060] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5060] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5060] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5061 attached => {parent_tid=[5061]}, 88) = 5061 [pid 5061] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5061] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5061] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5061] <... futex resumed>) = 0 [pid 5061] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5061] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5061] <... futex resumed>) = 0 [pid 5061] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5061] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5061] <... futex resumed>) = 0 [pid 5060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5061] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5060] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5061] <... futex resumed>) = 0 [pid 5060] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5061] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5061] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5060] <... futex resumed>) = 0 [pid 5061] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5060] exit_group(0) = ? [pid 5061] <... futex resumed>) = ? [pid 5061] +++ exited with 0 +++ [pid 5060] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5060, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18336", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18336", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18336/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18336/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18336/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18336") = 0 mkdir("./18337", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5062 ./strace-static-x86_64: Process 5062 attached [pid 5062] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5062] chdir("./18337") = 0 [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5062] setpgid(0, 0) = 0 [pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "1000", 4) = 4 [pid 5062] close(3) = 0 [pid 5062] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5062] write(1, "executing program\n", 18executing program ) = 18 [pid 5062] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5062] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5062] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5062] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5062] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5062] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5063 attached => {parent_tid=[5063]}, 88) = 5063 [pid 5063] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5063] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5063] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5063] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5063] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5063] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5063] <... futex resumed>) = 0 [pid 5063] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5063] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5062] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5062] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5063] <... futex resumed>) = 0 [pid 5063] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5063] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5062] <... futex resumed>) = 0 [pid 5062] exit_group(0) = ? [pid 5063] +++ exited with 0 +++ [pid 5062] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5062, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18337", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18337", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18337/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18337/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18337/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18337") = 0 mkdir("./18338", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5064 attached , child_tidptr=0x55558931b690) = 5064 [pid 5064] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5064] chdir("./18338") = 0 [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] setpgid(0, 0) = 0 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1000", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5064] write(1, "executing program\n", 18executing program ) = 18 [pid 5064] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5064] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5064] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5064] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5064] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5064] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5065 attached => {parent_tid=[5065]}, 88) = 5065 [pid 5065] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5064] rt_sigprocmask(SIG_SETMASK, [], [pid 5065] <... set_robust_list resumed>) = 0 [pid 5064] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5065] rt_sigprocmask(SIG_SETMASK, [], [pid 5064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5065] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5064] <... futex resumed>) = 0 [pid 5065] <... futex resumed>) = 1 [pid 5064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5065] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5064] <... futex resumed>) = 0 [pid 5065] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5064] <... futex resumed>) = 0 [pid 5065] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5065] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5065] write(-1, "0x0000000000000001", 18 [pid 5064] <... futex resumed>) = 0 [pid 5064] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5065] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5065] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5064] <... futex resumed>) = 0 [pid 5064] exit_group(0) = ? [pid 5065] +++ exited with 0 +++ [pid 5064] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18338", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18338", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18338/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18338/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18338/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18338") = 0 mkdir("./18339", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5066 ./strace-static-x86_64: Process 5066 attached [pid 5066] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5066] chdir("./18339") = 0 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5066] setpgid(0, 0) = 0 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5066] write(3, "1000", 4) = 4 [pid 5066] close(3) = 0 [pid 5066] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5066] write(1, "executing program\n", 18executing program ) = 18 [pid 5066] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5066] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5066] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5066] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5066] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5066] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5067 attached => {parent_tid=[5067]}, 88) = 5067 [pid 5067] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5067] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5067] <... futex resumed>) = 0 [pid 5067] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5067] <... futex resumed>) = 0 [pid 5067] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = 0 [pid 5066] <... futex resumed>) = 1 [pid 5067] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5066] <... futex resumed>) = 0 [pid 5066] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5066] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5067] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5067] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5066] <... futex resumed>) = 0 [pid 5067] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5066] exit_group(0) = ? [pid 5067] <... futex resumed>) = ? [pid 5067] +++ exited with 0 +++ [pid 5066] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18339", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18339", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18339/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18339/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18339/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18339") = 0 mkdir("./18340", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5068 attached , child_tidptr=0x55558931b690) = 5068 [pid 5068] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5068] chdir("./18340") = 0 [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] setpgid(0, 0) = 0 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1000", 4) = 4 [pid 5068] close(3) = 0 [pid 5068] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5068] write(1, "executing program\n", 18) = 18 [pid 5068] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5068] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5068] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5068] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5068] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5068] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5069 attached => {parent_tid=[5069]}, 88) = 5069 [pid 5069] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5069] <... futex resumed>) = 0 [pid 5069] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5069] <... futex resumed>) = 0 [pid 5068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5068] <... futex resumed>) = 0 [pid 5069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5068] <... futex resumed>) = 0 [pid 5068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5068] <... futex resumed>) = 0 [pid 5068] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5068] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5069] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5068] <... futex resumed>) = 0 [pid 5069] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5068] exit_group(0) = ? [pid 5069] <... futex resumed>) = ? [pid 5069] +++ exited with 0 +++ [pid 5068] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5068, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18340", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18340", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18340/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18340/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18340/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18340") = 0 mkdir("./18341", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5070 ./strace-static-x86_64: Process 5070 attached [pid 5070] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5070] chdir("./18341") = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] setpgid(0, 0) = 0 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5070] write(3, "1000", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5070] write(1, "executing program\n", 18) = 18 [pid 5070] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5070] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5071]}, 88) = 5071 [pid 5070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5071 attached [pid 5071] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5071] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [pid 5071] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [pid 5071] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... futex resumed>) = 1 [pid 5071] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5071] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = 0 [pid 5070] exit_group(0) = ? [pid 5071] <... futex resumed>) = ? [pid 5071] +++ exited with 0 +++ [pid 5070] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18341", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18341", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18341/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18341/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18341/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18341") = 0 mkdir("./18342", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5072 ./strace-static-x86_64: Process 5072 attached [pid 5072] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5072] chdir("./18342") = 0 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setpgid(0, 0) = 0 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1000", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5072] write(1, "executing program\n", 18) = 18 [pid 5072] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5072] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5072] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5072] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5072] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5072] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5073 attached => {parent_tid=[5073]}, 88) = 5073 [pid 5073] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5073] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5073] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5073] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5073] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5073] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5073] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5072] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5073] <... futex resumed>) = 0 [pid 5072] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5073] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5073] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5072] <... futex resumed>) = 0 [pid 5073] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5072] exit_group(0) = ? [pid 5073] <... futex resumed>) = ? [pid 5073] +++ exited with 0 +++ [pid 5072] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18342", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18342", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18342/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18342/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18342/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18342") = 0 mkdir("./18343", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5074 ./strace-static-x86_64: Process 5074 attached [pid 5074] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5074] chdir("./18343") = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] setpgid(0, 0) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5074] write(1, "executing program\n", 18) = 18 [pid 5074] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5074] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5074] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5075 attached => {parent_tid=[5075]}, 88) = 5075 [pid 5075] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5075] <... futex resumed>) = 0 [pid 5075] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5075] <... futex resumed>) = 0 [pid 5075] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5075] <... futex resumed>) = 0 [pid 5074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5074] <... futex resumed>) = 0 [pid 5075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5074] <... futex resumed>) = 0 [pid 5074] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5075] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5075] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5075] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5074] <... futex resumed>) = 0 [pid 5074] exit_group(0) = ? [pid 5075] <... futex resumed>) = ? [pid 5075] +++ exited with 0 +++ [pid 5074] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18343", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18343", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18343/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18343/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18343/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18343") = 0 mkdir("./18344", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5076 ./strace-static-x86_64: Process 5076 attached [pid 5076] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5076] chdir("./18344") = 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5076] write(3, "1000", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5076] write(1, "executing program\n", 18) = 18 [pid 5076] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5076] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5076] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5076] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5076] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5077 attached => {parent_tid=[5077]}, 88) = 5077 [pid 5077] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5077] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5077] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5077] <... futex resumed>) = 0 [pid 5077] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5077] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... futex resumed>) = 0 [pid 5077] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5076] <... futex resumed>) = 0 [pid 5077] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5077] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... futex resumed>) = 0 [pid 5077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5076] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5076] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5077] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5077] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5077] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5076] <... futex resumed>) = 0 [pid 5076] exit_group(0) = ? [pid 5077] <... futex resumed>) = ? [pid 5077] +++ exited with 0 +++ [pid 5076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18344", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18344", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18344/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18344/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18344/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18344") = 0 mkdir("./18345", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5078 ./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5078] chdir("./18345") = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5078] write(1, "executing program\n", 18executing program ) = 18 [pid 5078] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5078] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5078] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5078] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5079 attached => {parent_tid=[5079]}, 88) = 5079 [pid 5079] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5078] rt_sigprocmask(SIG_SETMASK, [], [pid 5079] <... set_robust_list resumed>) = 0 [pid 5079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5079] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5079] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5079] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5079] <... futex resumed>) = 0 [pid 5079] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5079] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5078] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5079] <... futex resumed>) = 0 [pid 5078] <... futex resumed>) = 1 [pid 5078] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5079] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5079] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5078] <... futex resumed>) = 0 [pid 5079] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5078] exit_group(0) = ? [pid 5079] <... futex resumed>) = ? [pid 5079] +++ exited with 0 +++ [pid 5078] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18345", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18345", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18345/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18345/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18345/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18345") = 0 mkdir("./18346", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5080 ./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5080] chdir("./18346") = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setpgid(0, 0) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1000", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] write(1, "executing program\n", 18executing program ) = 18 [pid 5080] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5080] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5080] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5080] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5081 attached => {parent_tid=[5081]}, 88) = 5081 [pid 5081] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5081] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5081] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5081] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5080] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5081] <... futex resumed>) = 0 [pid 5081] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5081] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5081] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5080] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5080] exit_group(0) = ? [pid 5081] <... futex resumed>) = ? [pid 5081] +++ exited with 0 +++ [pid 5080] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18346", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18346", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18346/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18346/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18346/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18346") = 0 mkdir("./18347", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5082 ./strace-static-x86_64: Process 5082 attached [pid 5082] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5082] chdir("./18347") = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] setpgid(0, 0) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5082] write(3, "1000", 4) = 4 [pid 5082] close(3) = 0 [pid 5082] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] write(1, "executing program\n", 18executing program ) = 18 [pid 5082] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5082] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5083 attached => {parent_tid=[5083]}, 88) = 5083 [pid 5083] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5082] rt_sigprocmask(SIG_SETMASK, [], [pid 5083] <... set_robust_list resumed>) = 0 [pid 5082] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5083] rt_sigprocmask(SIG_SETMASK, [], [pid 5082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5082] <... futex resumed>) = 0 [pid 5082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5082] <... futex resumed>) = 0 [pid 5083] <... futex resumed>) = 1 [pid 5082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5082] <... futex resumed>) = 0 [pid 5082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5083] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5083] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5082] <... futex resumed>) = 0 [pid 5083] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5082] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5082] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5083] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5083] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5082] <... futex resumed>) = 0 [pid 5083] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5082] exit_group(0) = ? [pid 5083] <... futex resumed>) = ? [pid 5083] +++ exited with 0 +++ [pid 5082] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18347", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18347", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18347/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18347/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18347/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18347") = 0 mkdir("./18348", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5084 ./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5084] chdir("./18348") = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5084] write(1, "executing program\n", 18) = 18 [pid 5084] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5084] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5085 attached => {parent_tid=[5085]}, 88) = 5085 [pid 5085] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5085] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5085] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5085] <... futex resumed>) = 0 [pid 5084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5085] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5085] <... futex resumed>) = 0 [pid 5084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5084] <... futex resumed>) = 0 [pid 5085] <... futex resumed>) = 1 [pid 5084] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5084] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5085] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5085] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5084] <... futex resumed>) = 0 [pid 5085] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5084] exit_group(0) = ? [pid 5085] <... futex resumed>) = ? [pid 5085] +++ exited with 0 +++ [pid 5084] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18348", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18348", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18348/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18348/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18348/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18348") = 0 mkdir("./18349", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5086 ./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5086] chdir("./18349") = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5086] write(1, "executing program\n", 18) = 18 [pid 5086] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5086] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5087]}, 88) = 5087 ./strace-static-x86_64: Process 5087 attached [pid 5086] rt_sigprocmask(SIG_SETMASK, [], [pid 5087] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5087] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5087] <... futex resumed>) = 0 [pid 5087] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5087] <... futex resumed>) = 0 [pid 5086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5087] <... futex resumed>) = 0 [pid 5087] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5086] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5087] <... futex resumed>) = 0 [pid 5086] <... futex resumed>) = 1 [pid 5086] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5087] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5087] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5086] <... futex resumed>) = 0 [pid 5087] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5086] exit_group(0) = ? [pid 5087] <... futex resumed>) = ? [pid 5087] +++ exited with 0 +++ [pid 5086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18349", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18349", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18349/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18349/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18349/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18349") = 0 mkdir("./18350", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5088 attached , child_tidptr=0x55558931b690) = 5088 [pid 5088] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5088] chdir("./18350") = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] setpgid(0, 0) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1000", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5088] write(1, "executing program\n", 18executing program ) = 18 [pid 5088] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5088] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5088] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5088] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5088] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5088] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5089 attached [pid 5089] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5088] <... clone3 resumed> => {parent_tid=[5089]}, 88) = 5089 [pid 5089] <... set_robust_list resumed>) = 0 [pid 5088] rt_sigprocmask(SIG_SETMASK, [], [pid 5089] rt_sigprocmask(SIG_SETMASK, [], [pid 5088] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5089] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5089] <... futex resumed>) = 1 [pid 5088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5088] <... futex resumed>) = 0 [pid 5088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5088] <... futex resumed>) = 0 [pid 5089] <... futex resumed>) = 1 [pid 5088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5088] <... futex resumed>) = 0 [pid 5088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5089] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5088] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5088] <... futex resumed>) = 0 [pid 5089] write(-1, "0x0000000000000001", 18 [pid 5088] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5089] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5089] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5088] <... futex resumed>) = 0 [pid 5088] exit_group(0) = ? [pid 5089] +++ exited with 0 +++ [pid 5088] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18350", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18350", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18350/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18350/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18350/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18350") = 0 mkdir("./18351", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5090 ./strace-static-x86_64: Process 5090 attached [pid 5090] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5090] chdir("./18351") = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5090] write(3, "1000", 4) = 4 [pid 5090] close(3) = 0 [pid 5090] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5090] write(1, "executing program\n", 18executing program ) = 18 [pid 5090] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5090] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5090] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5090] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5091 attached [pid 5091] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] <... clone3 resumed> => {parent_tid=[5091]}, 88) = 5091 [pid 5090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] <... futex resumed>) = 0 [pid 5091] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] <... futex resumed>) = 0 [pid 5091] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] <... futex resumed>) = 0 [pid 5090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5091] <... futex resumed>) = 0 [pid 5090] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5091] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5091] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5090] <... futex resumed>) = 0 [pid 5091] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5090] exit_group(0) = ? [pid 5091] <... futex resumed>) = ? [pid 5091] +++ exited with 0 +++ [pid 5090] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18351", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18351", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18351/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18351/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18351/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18351") = 0 mkdir("./18352", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5092 ./strace-static-x86_64: Process 5092 attached [pid 5092] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5092] chdir("./18352") = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5092] write(1, "executing program\n", 18) = 18 [pid 5092] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5092] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5092] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5093 attached [pid 5093] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5093] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5093] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] <... clone3 resumed> => {parent_tid=[5093]}, 88) = 5093 [pid 5092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5093] <... futex resumed>) = 0 [pid 5093] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5093] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5093] <... futex resumed>) = 0 [pid 5092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5093] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5093] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5092] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5092] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5093] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5093] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5092] <... futex resumed>) = 0 [pid 5093] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5092] exit_group(0) = ? [pid 5093] <... futex resumed>) = ? [pid 5093] +++ exited with 0 +++ [pid 5092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18352", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18352", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18352/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18352/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18352/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18352") = 0 mkdir("./18353", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5094 ./strace-static-x86_64: Process 5094 attached [pid 5094] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5094] chdir("./18353") = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5094] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5094] write(1, "executing program\n", 18executing program ) = 18 [pid 5094] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5094] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5094] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5095 attached => {parent_tid=[5095]}, 88) = 5095 [pid 5095] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5094] rt_sigprocmask(SIG_SETMASK, [], [pid 5095] <... set_robust_list resumed>) = 0 [pid 5094] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5095] rt_sigprocmask(SIG_SETMASK, [], [pid 5094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 1 [pid 5095] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5094] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5094] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5095] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5094] <... futex resumed>) = 0 [pid 5094] exit_group(0) = ? [pid 5095] +++ exited with 0 +++ [pid 5094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18353", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18353", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18353/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18353/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18353/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18353") = 0 mkdir("./18354", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5096 ./strace-static-x86_64: Process 5096 attached [pid 5096] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5096] chdir("./18354") = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] setpgid(0, 0) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5096] write(3, "1000", 4) = 4 [pid 5096] close(3) = 0 [pid 5096] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5096] write(1, "executing program\n", 18executing program ) = 18 [pid 5096] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5096] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5096] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5097 attached => {parent_tid=[5097]}, 88) = 5097 [pid 5097] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5097] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5097] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5097] <... futex resumed>) = 0 [pid 5097] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5097] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5097] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5096] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5096] exit_group(0) = ? [pid 5097] <... futex resumed>) = ? [pid 5097] +++ exited with 0 +++ [pid 5096] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18354", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18354", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18354/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18354/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18354/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18354") = 0 mkdir("./18355", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached , child_tidptr=0x55558931b690) = 5098 [pid 5098] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5098] chdir("./18355") = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5098] write(1, "executing program\n", 18) = 18 [pid 5098] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5098] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5098] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5099 attached => {parent_tid=[5099]}, 88) = 5099 [pid 5099] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5099] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5099] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5099] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] exit_group(0) = ? [pid 5099] <... futex resumed>) = ? [pid 5099] +++ exited with 0 +++ [pid 5098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18355", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18355", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18355/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18355/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18355/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18355") = 0 mkdir("./18356", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5100 ./strace-static-x86_64: Process 5100 attached [pid 5100] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5100] chdir("./18356") = 0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5100] setpgid(0, 0) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1000", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5100] write(1, "executing program\n", 18executing program ) = 18 [pid 5100] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5100] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5100] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5101]}, 88) = 5101 [pid 5100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5101 attached [pid 5101] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5101] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 0 [pid 5100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] <... futex resumed>) = 1 [pid 5101] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 0 [pid 5100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] <... futex resumed>) = 1 [pid 5101] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 0 [pid 5100] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5100] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] <... futex resumed>) = 1 [pid 5101] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5101] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... futex resumed>) = 0 [pid 5100] exit_group(0) = ? [pid 5101] <... futex resumed>) = ? [pid 5101] +++ exited with 0 +++ [pid 5100] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18356", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18356", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18356/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18356/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18356/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18356") = 0 mkdir("./18357", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5102 ./strace-static-x86_64: Process 5102 attached [pid 5102] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5102] chdir("./18357") = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setpgid(0, 0) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5102] write(1, "executing program\n", 18executing program ) = 18 [pid 5102] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5102] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5102] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5103 attached => {parent_tid=[5103]}, 88) = 5103 [pid 5103] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5102] rt_sigprocmask(SIG_SETMASK, [], [pid 5103] <... set_robust_list resumed>) = 0 [pid 5102] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5103] rt_sigprocmask(SIG_SETMASK, [], [pid 5102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5102] <... futex resumed>) = 0 [pid 5102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5102] <... futex resumed>) = 0 [pid 5103] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 1 [pid 5102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5102] <... futex resumed>) = 0 [pid 5102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5102] <... futex resumed>) = 0 [pid 5103] write(-1, "0x0000000000000001", 18 [pid 5102] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5103] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 1 [pid 5102] exit_group(0 [pid 5103] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] <... exit_group resumed>) = ? [pid 5103] <... futex resumed>) = ? [pid 5103] +++ exited with 0 +++ [pid 5102] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18357", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18357", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18357/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18357/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18357/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18357") = 0 mkdir("./18358", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5104 ./strace-static-x86_64: Process 5104 attached [pid 5104] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5104] chdir("./18358") = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5104] write(1, "executing program\n", 18executing program ) = 18 [pid 5104] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5104] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5104] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5105 attached [pid 5105] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5105] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5105] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... clone3 resumed> => {parent_tid=[5105]}, 88) = 5105 [pid 5104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5105] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5105] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5105] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5105] <... futex resumed>) = 0 [pid 5105] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5105] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5105] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] exit_group(0) = ? [pid 5105] <... futex resumed>) = ? [pid 5105] +++ exited with 0 +++ [pid 5104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18358", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18358", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18358/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18358/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18358/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18358") = 0 mkdir("./18359", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5106 ./strace-static-x86_64: Process 5106 attached [pid 5106] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5106] chdir("./18359") = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] setpgid(0, 0) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5106] write(3, "1000", 4) = 4 [pid 5106] close(3) = 0 [pid 5106] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5106] write(1, "executing program\n", 18executing program ) = 18 [pid 5106] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5106] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5106] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5106] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5106] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5106] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5107 attached => {parent_tid=[5107]}, 88) = 5107 [pid 5106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5107] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5106] <... futex resumed>) = 0 [pid 5106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5106] <... futex resumed>) = 0 [pid 5106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5106] <... futex resumed>) = 0 [pid 5106] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5106] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5107] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5107] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] <... futex resumed>) = 0 [pid 5106] exit_group(0) = ? [pid 5107] <... futex resumed>) = ? [pid 5107] +++ exited with 0 +++ [pid 5106] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18359", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18359", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18359/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18359/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18359/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18359") = 0 mkdir("./18360", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5108 ./strace-static-x86_64: Process 5108 attached [pid 5108] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5108] chdir("./18360") = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5108] write(1, "executing program\n", 18executing program ) = 18 [pid 5108] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5108] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5109]}, 88) = 5109 [pid 5108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5109 attached [pid 5109] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5109] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... futex resumed>) = 0 [pid 5108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... futex resumed>) = 1 [pid 5109] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... futex resumed>) = 0 [pid 5108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... futex resumed>) = 1 [pid 5109] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... futex resumed>) = 0 [pid 5108] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5108] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] <... futex resumed>) = 1 [pid 5109] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5109] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... futex resumed>) = 0 [pid 5108] exit_group(0) = ? [pid 5109] <... futex resumed>) = ? [pid 5109] +++ exited with 0 +++ [pid 5108] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18360", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18360", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18360/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18360/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18360/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18360") = 0 mkdir("./18361", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5110 ./strace-static-x86_64: Process 5110 attached [pid 5110] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5110] chdir("./18361") = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] setpgid(0, 0) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5110] write(3, "1000", 4) = 4 [pid 5110] close(3) = 0 [pid 5110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5110] write(1, "executing program\n", 18executing program ) = 18 [pid 5110] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5110] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5111]}, 88) = 5111 [pid 5110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5111 attached [pid 5111] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5111] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5111] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... futex resumed>) = 0 [pid 5110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] <... futex resumed>) = 1 [pid 5111] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... futex resumed>) = 0 [pid 5110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] <... futex resumed>) = 1 [pid 5111] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5110] <... futex resumed>) = 0 [pid 5110] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5110] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5111] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5111] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5110] <... futex resumed>) = 0 [pid 5111] <... futex resumed>) = 1 [pid 5110] exit_group(0) = ? [pid 5111] +++ exited with 0 +++ [pid 5110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18361", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18361", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18361/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18361/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18361/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18361") = 0 mkdir("./18362", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5112 ./strace-static-x86_64: Process 5112 attached [pid 5112] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5112] chdir("./18362") = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5112] setpgid(0, 0) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5112] write(3, "1000", 4) = 4 [pid 5112] close(3) = 0 [pid 5112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5112] write(1, "executing program\n", 18) = 18 executing program [pid 5112] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5112] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5112] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5113 attached => {parent_tid=[5113]}, 88) = 5113 [pid 5113] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5113] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5113] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5113] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] <... futex resumed>) = 0 [pid 5112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5113] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5113] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5113] <... futex resumed>) = 0 [pid 5112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5113] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5112] <... futex resumed>) = 0 [pid 5112] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5112] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5113] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5113] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5112] <... futex resumed>) = 0 [pid 5113] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] exit_group(0) = ? [pid 5113] <... futex resumed>) = ? [pid 5113] +++ exited with 0 +++ [pid 5112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18362", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18362", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18362/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18362/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18362/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18362") = 0 mkdir("./18363", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5114 ./strace-static-x86_64: Process 5114 attached [pid 5114] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5114] chdir("./18363") = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5114] setpgid(0, 0) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] write(3, "1000", 4) = 4 [pid 5114] close(3) = 0 [pid 5114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5114] write(1, "executing program\n", 18executing program ) = 18 [pid 5114] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5114] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5114] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5115 attached => {parent_tid=[5115]}, 88) = 5115 [pid 5115] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5114] rt_sigprocmask(SIG_SETMASK, [], [pid 5115] <... set_robust_list resumed>) = 0 [pid 5114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5115] rt_sigprocmask(SIG_SETMASK, [], [pid 5114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5114] <... futex resumed>) = 0 [pid 5114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = 0 [pid 5115] <... futex resumed>) = 1 [pid 5114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5114] <... futex resumed>) = 0 [pid 5114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = 0 [pid 5115] <... futex resumed>) = 1 [pid 5114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5114] <... futex resumed>) = 0 [pid 5114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = 0 [pid 5115] <... futex resumed>) = 1 [pid 5114] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5114] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5115] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = 0 [pid 5115] <... futex resumed>) = 1 [pid 5114] exit_group(0 [pid 5115] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] <... exit_group resumed>) = ? [pid 5115] <... futex resumed>) = ? [pid 5115] +++ exited with 0 +++ [pid 5114] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18363", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18363", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18363/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18363/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18363/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18363") = 0 mkdir("./18364", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5116 ./strace-static-x86_64: Process 5116 attached [pid 5116] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5116] chdir("./18364") = 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5116] setpgid(0, 0) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] write(3, "1000", 4) = 4 [pid 5116] close(3) = 0 [pid 5116] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5116] write(1, "executing program\n", 18executing program ) = 18 [pid 5116] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5116] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5116] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5116] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5117 attached [pid 5117] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5117] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] <... clone3 resumed> => {parent_tid=[5117]}, 88) = 5117 [pid 5116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5117] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5117] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5117] <... futex resumed>) = 0 [pid 5116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5117] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5116] <... futex resumed>) = 0 [pid 5116] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5116] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5117] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5117] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5116] <... futex resumed>) = 0 [pid 5117] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] exit_group(0) = ? [pid 5117] <... futex resumed>) = ? [pid 5117] +++ exited with 0 +++ [pid 5116] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18364", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18364", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18364/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18364/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18364/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18364") = 0 mkdir("./18365", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5118 ./strace-static-x86_64: Process 5118 attached [pid 5118] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5118] chdir("./18365") = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5118] setpgid(0, 0) = 0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5118] write(3, "1000", 4) = 4 [pid 5118] close(3) = 0 [pid 5118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5118] write(1, "executing program\n", 18executing program ) = 18 [pid 5118] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5118] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5118] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5118] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5118] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5118] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5119 attached => {parent_tid=[5119]}, 88) = 5119 [pid 5119] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5118] rt_sigprocmask(SIG_SETMASK, [], [pid 5119] <... set_robust_list resumed>) = 0 [pid 5118] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5119] rt_sigprocmask(SIG_SETMASK, [], [pid 5118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5118] <... futex resumed>) = 0 [pid 5118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5119] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = 0 [pid 5119] <... futex resumed>) = 1 [pid 5118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5118] <... futex resumed>) = 0 [pid 5118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5119] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5118] <... futex resumed>) = 0 [pid 5119] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5118] <... futex resumed>) = 0 [pid 5119] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5119] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = 0 [pid 5119] <... futex resumed>) = 1 [pid 5118] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5118] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5119] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5119] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = 0 [pid 5119] <... futex resumed>) = 1 [pid 5118] exit_group(0 [pid 5119] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5118] <... exit_group resumed>) = ? [pid 5119] <... futex resumed>) = ? [pid 5119] +++ exited with 0 +++ [pid 5118] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18365", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18365", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18365/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18365/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18365/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18365") = 0 mkdir("./18366", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5120 ./strace-static-x86_64: Process 5120 attached [pid 5120] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5120] chdir("./18366") = 0 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5120] write(3, "1000", 4) = 4 [pid 5120] close(3) = 0 [pid 5120] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5120] write(1, "executing program\n", 18) = 18 [pid 5120] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5120] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5120] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5121 attached [pid 5121] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5120] <... clone3 resumed> => {parent_tid=[5121]}, 88) = 5121 [pid 5121] <... set_robust_list resumed>) = 0 [pid 5121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5121] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5121] <... futex resumed>) = 0 [pid 5120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5120] <... futex resumed>) = 0 [pid 5120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5121] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5120] <... futex resumed>) = 0 [pid 5121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] <... futex resumed>) = 0 [pid 5120] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5120] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5120] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5121] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5121] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5120] <... futex resumed>) = 0 [pid 5121] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5120] exit_group(0) = ? [pid 5121] <... futex resumed>) = ? [pid 5121] +++ exited with 0 +++ [pid 5120] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18366", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18366", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18366/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18366/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18366/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18366") = 0 mkdir("./18367", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5122 ./strace-static-x86_64: Process 5122 attached [pid 5122] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5122] chdir("./18367") = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] setpgid(0, 0) = 0 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5122] write(3, "1000", 4) = 4 [pid 5122] close(3) = 0 [pid 5122] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5122] write(1, "executing program\n", 18executing program ) = 18 [pid 5122] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5122] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5122] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5122] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5122] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5122] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5123 attached [pid 5123] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5123] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5123] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] <... clone3 resumed> => {parent_tid=[5123]}, 88) = 5123 [pid 5122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5123] <... futex resumed>) = 0 [pid 5122] <... futex resumed>) = 1 [pid 5123] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5123] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5123] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5123] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5122] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5123] <... futex resumed>) = 0 [pid 5122] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5123] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5123] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5122] <... futex resumed>) = 0 [pid 5123] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5122] exit_group(0) = ? [pid 5123] <... futex resumed>) = ? [pid 5123] +++ exited with 0 +++ [pid 5122] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18367", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18367", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18367/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18367/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18367/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18367") = 0 mkdir("./18368", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5124 ./strace-static-x86_64: Process 5124 attached [pid 5124] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5124] chdir("./18368") = 0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5124] setpgid(0, 0) = 0 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5124] write(3, "1000", 4) = 4 [pid 5124] close(3) = 0 [pid 5124] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5124] write(1, "executing program\n", 18executing program ) = 18 [pid 5124] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5124] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5124] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5125 attached [pid 5125] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5124] <... clone3 resumed> => {parent_tid=[5125]}, 88) = 5125 [pid 5125] <... set_robust_list resumed>) = 0 [pid 5125] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5125] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5125] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5125] <... futex resumed>) = 0 [pid 5125] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5124] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5125] <... futex resumed>) = 0 [pid 5124] <... futex resumed>) = 1 [pid 5124] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5125] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5125] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5124] <... futex resumed>) = 0 [pid 5125] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5124] exit_group(0 [pid 5125] <... futex resumed>) = ? [pid 5124] <... exit_group resumed>) = ? [pid 5125] +++ exited with 0 +++ [pid 5124] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18368", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18368", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18368/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18368/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18368/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18368") = 0 mkdir("./18369", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5126 ./strace-static-x86_64: Process 5126 attached [pid 5126] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5126] chdir("./18369") = 0 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5126] setpgid(0, 0) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] write(3, "1000", 4) = 4 [pid 5126] close(3) = 0 [pid 5126] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5126] write(1, "executing program\n", 18executing program ) = 18 [pid 5126] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5126] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5126] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5127 attached => {parent_tid=[5127]}, 88) = 5127 [pid 5127] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5127] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5127] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5127] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5127] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5127] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5127] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5127] <... futex resumed>) = 0 [pid 5126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5127] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5126] <... futex resumed>) = 0 [pid 5127] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5126] <... futex resumed>) = 0 [pid 5126] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5127] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5127] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5126] <... futex resumed>) = 0 [pid 5127] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5126] exit_group(0) = ? [pid 5127] <... futex resumed>) = ? [pid 5127] +++ exited with 0 +++ [pid 5126] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18369", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18369", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18369/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18369/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18369/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18369") = 0 mkdir("./18370", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5128 ./strace-static-x86_64: Process 5128 attached [pid 5128] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5128] chdir("./18370") = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5128] setpgid(0, 0) = 0 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5128] write(3, "1000", 4) = 4 [pid 5128] close(3) = 0 [pid 5128] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5128] write(1, "executing program\n", 18) = 18 [pid 5128] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5128] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5128] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5128] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5129 attached [pid 5129] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5129] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] <... clone3 resumed> => {parent_tid=[5129]}, 88) = 5129 [pid 5128] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5129] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5129] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5129] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] <... futex resumed>) = 0 [pid 5128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5129] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5128] <... futex resumed>) = 0 [pid 5128] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5128] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5129] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5129] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5129] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5128] <... futex resumed>) = 0 [pid 5128] exit_group(0) = ? [pid 5129] <... futex resumed>) = ? [pid 5129] +++ exited with 0 +++ [pid 5128] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18370", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18370", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18370/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18370/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18370/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18370") = 0 mkdir("./18371", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5130 ./strace-static-x86_64: Process 5130 attached [pid 5130] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5130] chdir("./18371") = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5130] setpgid(0, 0) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5130] write(3, "1000", 4) = 4 [pid 5130] close(3) = 0 [pid 5130] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5130] write(1, "executing program\n", 18executing program ) = 18 [pid 5130] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5130] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5130] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5131 attached => {parent_tid=[5131]}, 88) = 5131 [pid 5131] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5130] rt_sigprocmask(SIG_SETMASK, [], [pid 5131] <... set_robust_list resumed>) = 0 [pid 5130] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5131] rt_sigprocmask(SIG_SETMASK, [], [pid 5130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5130] <... futex resumed>) = 0 [pid 5130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5131] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = 1 [pid 5130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5130] <... futex resumed>) = 0 [pid 5130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5131] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = 1 [pid 5130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5131] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5130] <... futex resumed>) = 0 [pid 5130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5131] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = 1 [pid 5130] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5131] write(-1, "0x0000000000000001", 18 [pid 5130] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5131] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5131] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5130] <... futex resumed>) = 0 [pid 5131] <... futex resumed>) = 1 [pid 5130] exit_group(0 [pid 5131] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5130] <... exit_group resumed>) = ? [pid 5131] <... futex resumed>) = ? [pid 5131] +++ exited with 0 +++ [pid 5130] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18371", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18371", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18371/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18371/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18371/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18371") = 0 mkdir("./18372", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5132 ./strace-static-x86_64: Process 5132 attached [pid 5132] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5132] chdir("./18372") = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5132] setpgid(0, 0) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5132] write(3, "1000", 4) = 4 [pid 5132] close(3) = 0 [pid 5132] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5132] write(1, "executing program\n", 18) = 18 [pid 5132] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5132] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5132] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5133 attached => {parent_tid=[5133]}, 88) = 5133 [pid 5133] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5132] rt_sigprocmask(SIG_SETMASK, [], [pid 5133] <... set_robust_list resumed>) = 0 [pid 5133] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5133] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5133] <... futex resumed>) = 0 [pid 5133] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5133] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] <... futex resumed>) = 0 [pid 5133] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5132] <... futex resumed>) = 0 [pid 5133] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5132] <... futex resumed>) = 0 [pid 5133] <... futex resumed>) = 0 [pid 5132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5132] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5133] <... futex resumed>) = 0 [pid 5132] <... futex resumed>) = 1 [pid 5132] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5133] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5133] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5132] <... futex resumed>) = 0 [pid 5133] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5132] exit_group(0) = ? [pid 5133] <... futex resumed>) = ? [pid 5133] +++ exited with 0 +++ [pid 5132] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18372", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18372", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18372/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18372/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18372/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18372") = 0 mkdir("./18373", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5134 ./strace-static-x86_64: Process 5134 attached [pid 5134] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5134] chdir("./18373") = 0 [pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5134] setpgid(0, 0) = 0 [pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5134] write(3, "1000", 4) = 4 [pid 5134] close(3) = 0 [pid 5134] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5134] write(1, "executing program\n", 18executing program ) = 18 [pid 5134] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5134] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5134] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5134] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5134] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5134] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5135 attached [pid 5135] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5134] <... clone3 resumed> => {parent_tid=[5135]}, 88) = 5135 [pid 5135] <... set_robust_list resumed>) = 0 [pid 5135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5135] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5135] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5135] <... futex resumed>) = 0 [pid 5134] <... futex resumed>) = 1 [pid 5135] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5135] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] <... futex resumed>) = 0 [pid 5134] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] <... futex resumed>) = 0 [pid 5134] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5135] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5135] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5135] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5134] <... futex resumed>) = 0 [pid 5134] exit_group(0) = ? [pid 5135] <... futex resumed>) = ? [pid 5135] +++ exited with 0 +++ [pid 5134] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18373", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18373", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18373/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18373/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18373/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18373") = 0 mkdir("./18374", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5136 ./strace-static-x86_64: Process 5136 attached [pid 5136] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5136] chdir("./18374") = 0 [pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5136] setpgid(0, 0) = 0 [pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5136] write(3, "1000", 4) = 4 [pid 5136] close(3) = 0 [pid 5136] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5136] write(1, "executing program\n", 18executing program ) = 18 [pid 5136] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5136] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5136] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5136] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5136] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5136] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5137 attached => {parent_tid=[5137]}, 88) = 5137 [pid 5137] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5137] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5136] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5136] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5136] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5137] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5137] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5136] <... futex resumed>) = 0 [pid 5136] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5137] <... futex resumed>) = 0 [pid 5137] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5136] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5137] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5136] <... futex resumed>) = 0 [pid 5137] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5136] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5136] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5137] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5137] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5136] <... futex resumed>) = 0 [pid 5136] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5136] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5137] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5137] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5136] <... futex resumed>) = 0 [pid 5137] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5136] exit_group(0) = ? [pid 5137] <... futex resumed>) = ? [pid 5137] +++ exited with 0 +++ [pid 5136] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18374", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18374", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18374/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18374/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18374/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18374") = 0 mkdir("./18375", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5138 ./strace-static-x86_64: Process 5138 attached [pid 5138] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5138] chdir("./18375") = 0 [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5138] setpgid(0, 0) = 0 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5138] write(3, "1000", 4) = 4 [pid 5138] close(3) = 0 [pid 5138] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5138] write(1, "executing program\n", 18executing program ) = 18 [pid 5138] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5138] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5138] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5138] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5139 attached [pid 5139] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5139] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5139] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5138] <... clone3 resumed> => {parent_tid=[5139]}, 88) = 5139 [pid 5138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5138] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5138] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5139] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5139] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5139] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5139] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5138] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5139] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5139] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5138] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5139] <... futex resumed>) = 0 [pid 5139] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5139] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5139] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5138] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5138] exit_group(0) = ? [pid 5139] <... futex resumed>) = ? [pid 5139] +++ exited with 0 +++ [pid 5138] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18375", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18375", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18375/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18375/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18375/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18375") = 0 mkdir("./18376", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5140 ./strace-static-x86_64: Process 5140 attached [pid 5140] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5140] chdir("./18376") = 0 [pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5140] setpgid(0, 0) = 0 [pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5140] write(3, "1000", 4) = 4 [pid 5140] close(3) = 0 [pid 5140] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5140] write(1, "executing program\n", 18) = 18 [pid 5140] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5140] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5140] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5141 attached => {parent_tid=[5141]}, 88) = 5141 [pid 5141] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5140] rt_sigprocmask(SIG_SETMASK, [], [pid 5141] <... set_robust_list resumed>) = 0 [pid 5141] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5141] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5140] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5140] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5141] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5141] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5140] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5140] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5141] <... futex resumed>) = 0 [pid 5140] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5141] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5141] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5140] <... futex resumed>) = 0 [pid 5141] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5140] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5141] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5140] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5141] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5140] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5141] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5140] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5141] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5141] <... futex resumed>) = 0 [pid 5140] exit_group(0 [pid 5141] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5140] <... exit_group resumed>) = ? [pid 5141] <... futex resumed>) = ? [pid 5141] +++ exited with 0 +++ [pid 5140] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18376", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18376", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18376/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18376/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18376/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18376") = 0 mkdir("./18377", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5142 ./strace-static-x86_64: Process 5142 attached [pid 5142] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5142] chdir("./18377") = 0 [pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5142] setpgid(0, 0) = 0 [pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5142] write(3, "1000", 4) = 4 [pid 5142] close(3) = 0 [pid 5142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5142] write(1, "executing program\n", 18executing program ) = 18 [pid 5142] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5142] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5142] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5142] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5143 attached [pid 5143] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5143] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] <... clone3 resumed> => {parent_tid=[5143]}, 88) = 5143 [pid 5142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5142] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5143] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5143] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5142] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5143] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5143] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5143] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5142] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] <... futex resumed>) = 0 [pid 5142] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5143] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] <... futex resumed>) = 0 [pid 5143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5142] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5142] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5143] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5143] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5143] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5142] <... futex resumed>) = 0 [pid 5142] exit_group(0) = ? [pid 5143] <... futex resumed>) = ? [pid 5143] +++ exited with 0 +++ [pid 5142] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18377", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18377", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18377/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18377/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18377/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18377") = 0 mkdir("./18378", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5144 ./strace-static-x86_64: Process 5144 attached [pid 5144] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5144] chdir("./18378") = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5144] setpgid(0, 0) = 0 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5144] write(3, "1000", 4) = 4 [pid 5144] close(3) = 0 [pid 5144] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5144] write(1, "executing program\n", 18executing program ) = 18 [pid 5144] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5144] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5144] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5145 attached => {parent_tid=[5145]}, 88) = 5145 [pid 5145] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5144] rt_sigprocmask(SIG_SETMASK, [], [pid 5145] <... set_robust_list resumed>) = 0 [pid 5145] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5145] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5144] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5145] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5145] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5144] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5145] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5145] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5144] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5145] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5145] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5145] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5144] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5145] <... futex resumed>) = 0 [pid 5144] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5145] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5145] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5144] <... futex resumed>) = 0 [pid 5145] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5144] exit_group(0) = ? [pid 5145] <... futex resumed>) = ? [pid 5145] +++ exited with 0 +++ [pid 5144] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18378", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18378", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18378/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18378/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18378/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18378") = 0 mkdir("./18379", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5147 attached [pid 5147] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5147] chdir("./18379" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 5147 [pid 5147] <... chdir resumed>) = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5147] setpgid(0, 0) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5147] write(3, "1000", 4) = 4 [pid 5147] close(3) = 0 [pid 5147] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5147] write(1, "executing program\n", 18executing program ) = 18 [pid 5147] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5147] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5147] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5148]}, 88) = 5148 [pid 5147] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5148 attached [pid 5148] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5148] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5147] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5148] <... futex resumed>) = 1 [pid 5148] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5148] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5147] <... futex resumed>) = 0 [pid 5147] exit_group(0) = ? [pid 5148] <... futex resumed>) = ? [pid 5148] +++ exited with 0 +++ [pid 5147] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18379", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18379", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18379/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18379/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18379/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18379") = 0 mkdir("./18380", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5149 ./strace-static-x86_64: Process 5149 attached [pid 5149] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5149] chdir("./18380") = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5149] setpgid(0, 0) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5149] write(3, "1000", 4) = 4 [pid 5149] close(3) = 0 [pid 5149] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5149] write(1, "executing program\n", 18) = 18 [pid 5149] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5149] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5149] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5149] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5149] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5150 attached => {parent_tid=[5150]}, 88) = 5150 [pid 5150] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5150] rt_sigprocmask(SIG_SETMASK, [], [pid 5149] rt_sigprocmask(SIG_SETMASK, [], [pid 5150] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5150] <... futex resumed>) = 0 [pid 5150] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5150] <... futex resumed>) = 0 [pid 5150] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5150] <... futex resumed>) = 0 [pid 5149] <... futex resumed>) = 1 [pid 5150] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5149] <... futex resumed>) = 0 [pid 5149] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5149] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5150] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5150] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5150] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5149] <... futex resumed>) = 0 [pid 5149] exit_group(0) = ? [pid 5150] <... futex resumed>) = ? [pid 5150] +++ exited with 0 +++ [pid 5149] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18380", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18380", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18380/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18380/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18380/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18380") = 0 mkdir("./18381", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5151 ./strace-static-x86_64: Process 5151 attached [pid 5151] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5151] chdir("./18381") = 0 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5151] setpgid(0, 0) = 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5151] write(3, "1000", 4) = 4 [pid 5151] close(3) = 0 [pid 5151] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5151] write(1, "executing program\n", 18executing program ) = 18 [pid 5151] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5151] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5151] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5151] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5151] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5151] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5152 attached => {parent_tid=[5152]}, 88) = 5152 [pid 5152] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5152] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5152] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5152] <... futex resumed>) = 0 [pid 5152] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5151] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5152] <... futex resumed>) = 0 [pid 5151] <... futex resumed>) = 1 [pid 5151] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5152] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5152] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5152] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5151] <... futex resumed>) = 0 [pid 5151] exit_group(0) = ? [pid 5152] <... futex resumed>) = ? [pid 5152] +++ exited with 0 +++ [pid 5151] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18381", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18381", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18381/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18381/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18381/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18381") = 0 mkdir("./18382", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5153 ./strace-static-x86_64: Process 5153 attached [pid 5153] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5153] chdir("./18382") = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] setpgid(0, 0) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] write(3, "1000", 4) = 4 [pid 5153] close(3) = 0 [pid 5153] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5153] write(1, "executing program\n", 18executing program ) = 18 [pid 5153] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5153] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5153] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5153] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5154 attached => {parent_tid=[5154]}, 88) = 5154 [pid 5154] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5154] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5154] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5154] <... futex resumed>) = 0 [pid 5153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5154] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5154] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] <... futex resumed>) = 0 [pid 5154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5154] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5153] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5153] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5154] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5154] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5153] <... futex resumed>) = 0 [pid 5154] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5153] exit_group(0) = ? [pid 5154] <... futex resumed>) = ? [pid 5154] +++ exited with 0 +++ [pid 5153] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18382", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18382", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18382/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18382/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18382/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18382") = 0 mkdir("./18383", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5155 ./strace-static-x86_64: Process 5155 attached [pid 5155] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5155] chdir("./18383") = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5155] setpgid(0, 0) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] write(3, "1000", 4) = 4 [pid 5155] close(3) = 0 [pid 5155] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5155] write(1, "executing program\n", 18executing program ) = 18 [pid 5155] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5155] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5155] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5155] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5155] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5156 attached => {parent_tid=[5156]}, 88) = 5156 [pid 5156] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5155] rt_sigprocmask(SIG_SETMASK, [], [pid 5156] <... set_robust_list resumed>) = 0 [pid 5155] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5156] rt_sigprocmask(SIG_SETMASK, [], [pid 5155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5155] <... futex resumed>) = 0 [pid 5156] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5155] <... futex resumed>) = 0 [pid 5156] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5156] <... futex resumed>) = 1 [pid 5155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5156] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5155] <... futex resumed>) = 0 [pid 5155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5156] <... futex resumed>) = 1 [pid 5155] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5155] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5156] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5156] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5155] <... futex resumed>) = 0 [pid 5156] <... futex resumed>) = 1 [pid 5155] exit_group(0 [pid 5156] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5155] <... exit_group resumed>) = ? [pid 5156] <... futex resumed>) = ? [pid 5156] +++ exited with 0 +++ [pid 5155] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18383", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18383", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18383/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18383/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18383/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18383") = 0 mkdir("./18384", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5157 ./strace-static-x86_64: Process 5157 attached [pid 5157] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5157] chdir("./18384") = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5157] setpgid(0, 0) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5157] write(3, "1000", 4) = 4 [pid 5157] close(3) = 0 [pid 5157] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5157] write(1, "executing program\n", 18executing program ) = 18 [pid 5157] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5157] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5157] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5157] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5158 attached => {parent_tid=[5158]}, 88) = 5158 [pid 5158] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5158] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5158] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] <... futex resumed>) = 0 [pid 5157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] <... futex resumed>) = 0 [pid 5158] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] <... futex resumed>) = 0 [pid 5158] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5158] <... futex resumed>) = 0 [pid 5157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5157] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5157] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5158] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5158] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5157] <... futex resumed>) = 0 [pid 5158] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5157] exit_group(0) = ? [pid 5158] <... futex resumed>) = ? [pid 5158] +++ exited with 0 +++ [pid 5157] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18384", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18384", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18384/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18384/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18384/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18384") = 0 mkdir("./18385", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5159 ./strace-static-x86_64: Process 5159 attached [pid 5159] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5159] chdir("./18385") = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5159] setpgid(0, 0) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5159] write(3, "1000", 4) = 4 [pid 5159] close(3) = 0 [pid 5159] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5159] write(1, "executing program\n", 18executing program ) = 18 [pid 5159] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5159] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5159] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5159] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5159] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5160 attached => {parent_tid=[5160]}, 88) = 5160 [pid 5160] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5160] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5160] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] <... futex resumed>) = 0 [pid 5159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5160] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5160] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5160] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5160] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5159] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5160] <... futex resumed>) = 0 [pid 5159] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5160] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5160] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5159] <... futex resumed>) = 0 [pid 5160] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5159] exit_group(0) = ? [pid 5160] <... futex resumed>) = ? [pid 5160] +++ exited with 0 +++ [pid 5159] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18385", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18385", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18385/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18385/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18385/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18385") = 0 mkdir("./18386", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5161 ./strace-static-x86_64: Process 5161 attached [pid 5161] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5161] chdir("./18386") = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5161] write(1, "executing program\n", 18) = 18 [pid 5161] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5161] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5161] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5161] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5161] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5162 attached => {parent_tid=[5162]}, 88) = 5162 [pid 5162] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5162] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5162] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5162] <... futex resumed>) = 0 [pid 5161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5161] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5161] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5162] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5162] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5161] <... futex resumed>) = 0 [pid 5162] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5161] exit_group(0) = ? [pid 5162] <... futex resumed>) = ? [pid 5162] +++ exited with 0 +++ [pid 5161] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18386", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18386", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18386/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18386/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18386/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18386") = 0 mkdir("./18387", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5163 ./strace-static-x86_64: Process 5163 attached [pid 5163] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5163] chdir("./18387") = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5163] setpgid(0, 0) = 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] write(3, "1000", 4) = 4 [pid 5163] close(3) = 0 [pid 5163] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5163] write(1, "executing program\n", 18executing program ) = 18 [pid 5163] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5163] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5163] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5163] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5163] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5164 attached => {parent_tid=[5164]}, 88) = 5164 [pid 5164] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5164] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5164] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] <... futex resumed>) = 0 [pid 5163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5164] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5164] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5164] <... futex resumed>) = 0 [pid 5163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5163] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5163] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5164] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5164] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5163] <... futex resumed>) = 0 [pid 5164] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5163] exit_group(0) = ? [pid 5164] <... futex resumed>) = ? [pid 5164] +++ exited with 0 +++ [pid 5163] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18387", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18387", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18387/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18387/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18387/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18387") = 0 mkdir("./18388", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5165 ./strace-static-x86_64: Process 5165 attached [pid 5165] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5165] chdir("./18388") = 0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] setpgid(0, 0) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5165] write(3, "1000", 4) = 4 [pid 5165] close(3) = 0 [pid 5165] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5165] write(1, "executing program\n", 18executing program ) = 18 [pid 5165] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5165] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5165] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5165] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5165] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5166 attached => {parent_tid=[5166]}, 88) = 5166 [pid 5166] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5165] rt_sigprocmask(SIG_SETMASK, [], [pid 5166] <... set_robust_list resumed>) = 0 [pid 5165] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5166] rt_sigprocmask(SIG_SETMASK, [], [pid 5165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5166] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] <... futex resumed>) = 1 [pid 5166] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5165] <... futex resumed>) = 0 [pid 5165] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5165] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5166] <... futex resumed>) = 1 [pid 5166] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5166] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5165] <... futex resumed>) = 0 [pid 5165] exit_group(0) = ? [pid 5166] +++ exited with 0 +++ [pid 5165] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18388", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18388", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18388/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18388/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18388/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18388") = 0 mkdir("./18389", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5167 ./strace-static-x86_64: Process 5167 attached [pid 5167] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5167] chdir("./18389") = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5167] setpgid(0, 0) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5167] write(1, "executing program\n", 18executing program ) = 18 [pid 5167] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5167] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5167] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5167] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5167] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5167] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5168 attached => {parent_tid=[5168]}, 88) = 5168 [pid 5168] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5167] rt_sigprocmask(SIG_SETMASK, [], [pid 5168] <... set_robust_list resumed>) = 0 [pid 5168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5168] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5168] <... futex resumed>) = 0 [pid 5168] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5168] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5168] <... futex resumed>) = 0 [pid 5168] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5168] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5168] <... futex resumed>) = 0 [pid 5168] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5168] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5167] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5168] <... futex resumed>) = 0 [pid 5167] <... futex resumed>) = 1 [pid 5167] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5168] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5168] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5167] <... futex resumed>) = 0 [pid 5168] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5167] exit_group(0 [pid 5168] <... futex resumed>) = ? [pid 5168] +++ exited with 0 +++ [pid 5167] <... exit_group resumed>) = ? [pid 5167] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18389", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18389", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18389/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18389/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18389/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18389") = 0 mkdir("./18390", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5169 ./strace-static-x86_64: Process 5169 attached [pid 5169] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5169] chdir("./18390") = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5169] setpgid(0, 0) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5169] write(3, "1000", 4) = 4 [pid 5169] close(3) = 0 [pid 5169] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5169] write(1, "executing program\n", 18executing program ) = 18 [pid 5169] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5169] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5169] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5169] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5169] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5170 attached => {parent_tid=[5170]}, 88) = 5170 [pid 5170] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5169] rt_sigprocmask(SIG_SETMASK, [], [pid 5170] <... set_robust_list resumed>) = 0 [pid 5169] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5170] rt_sigprocmask(SIG_SETMASK, [], [pid 5169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5170] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5170] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5169] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5169] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5170] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5170] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5169] <... futex resumed>) = 0 [pid 5169] exit_group(0) = ? [pid 5170] +++ exited with 0 +++ [pid 5169] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18390", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18390", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18390/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18390/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18390/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18390") = 0 mkdir("./18391", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5171 ./strace-static-x86_64: Process 5171 attached [pid 5171] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5171] chdir("./18391") = 0 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5171] write(3, "1000", 4) = 4 [pid 5171] close(3) = 0 [pid 5171] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5171] write(1, "executing program\n", 18executing program ) = 18 [pid 5171] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5171] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5171] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5171] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5171] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5171] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5172 attached => {parent_tid=[5172]}, 88) = 5172 [pid 5172] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5171] rt_sigprocmask(SIG_SETMASK, [], [pid 5172] <... set_robust_list resumed>) = 0 [pid 5172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5172] <... futex resumed>) = 0 [pid 5172] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5172] <... futex resumed>) = 0 [pid 5172] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5172] <... futex resumed>) = 0 [pid 5172] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5171] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5172] <... futex resumed>) = 0 [pid 5171] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5172] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5172] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5172] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5171] <... futex resumed>) = 0 [pid 5171] exit_group(0) = ? [pid 5172] <... futex resumed>) = ? [pid 5172] +++ exited with 0 +++ [pid 5171] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18391", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18391", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18391/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18391/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18391/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18391") = 0 mkdir("./18392", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5173 ./strace-static-x86_64: Process 5173 attached [pid 5173] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5173] chdir("./18392") = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setpgid(0, 0) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5173] write(1, "executing program\n", 18executing program ) = 18 [pid 5173] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5173] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5173] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5173] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5173] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5173] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5174 attached [pid 5174] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5174] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... clone3 resumed> => {parent_tid=[5174]}, 88) = 5174 [pid 5173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5174] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] <... futex resumed>) = 0 [pid 5174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5174] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5174] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5173] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] <... futex resumed>) = 0 [pid 5173] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5174] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5174] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5174] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5173] <... futex resumed>) = 0 [pid 5173] exit_group(0) = ? [pid 5174] <... futex resumed>) = ? [pid 5174] +++ exited with 0 +++ [pid 5173] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18392", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18392", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18392/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18392/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18392/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18392") = 0 mkdir("./18393", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5175 ./strace-static-x86_64: Process 5175 attached [pid 5175] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5175] chdir("./18393") = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5175] setpgid(0, 0) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5175] write(3, "1000", 4) = 4 [pid 5175] close(3) = 0 [pid 5175] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5175] write(1, "executing program\n", 18executing program ) = 18 [pid 5175] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5175] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5175] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5175] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5175] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5175] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5176 attached => {parent_tid=[5176]}, 88) = 5176 [pid 5176] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5176] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5176] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5176] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5176] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5176] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5176] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5175] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5176] <... futex resumed>) = 0 [pid 5175] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5176] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5176] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5175] <... futex resumed>) = 0 [pid 5176] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5175] exit_group(0) = ? [pid 5176] <... futex resumed>) = ? [pid 5176] +++ exited with 0 +++ [pid 5175] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18393", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18393", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18393/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18393/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18393/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18393") = 0 mkdir("./18394", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5177 ./strace-static-x86_64: Process 5177 attached [pid 5177] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5177] chdir("./18394") = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5177] setpgid(0, 0) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5177] write(3, "1000", 4) = 4 [pid 5177] close(3) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5177] write(1, "executing program\n", 18executing program ) = 18 [pid 5177] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5177] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5177] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5177] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5177] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5178 attached => {parent_tid=[5178]}, 88) = 5178 [pid 5178] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5178] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5178] <... futex resumed>) = 0 [pid 5178] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5178] <... futex resumed>) = 0 [pid 5178] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5178] <... futex resumed>) = 0 [pid 5178] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5177] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5178] <... futex resumed>) = 0 [pid 5177] <... futex resumed>) = 1 [pid 5177] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5178] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5178] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5177] <... futex resumed>) = 0 [pid 5178] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5177] exit_group(0) = ? [pid 5178] <... futex resumed>) = ? [pid 5178] +++ exited with 0 +++ [pid 5177] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18394", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18394", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18394/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18394/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18394/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18394") = 0 mkdir("./18395", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5179 ./strace-static-x86_64: Process 5179 attached [pid 5179] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5179] chdir("./18395") = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5179] setpgid(0, 0) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 [pid 5179] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5179] write(1, "executing program\n", 18executing program ) = 18 [pid 5179] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5179] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5179] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5179] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5179] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5180 attached [pid 5180] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5180] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] <... clone3 resumed> => {parent_tid=[5180]}, 88) = 5180 [pid 5179] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5180] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5180] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5180] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5180] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5179] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] <... futex resumed>) = 0 [pid 5179] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5180] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5180] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5180] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5179] <... futex resumed>) = 0 [pid 5179] exit_group(0) = ? [pid 5180] <... futex resumed>) = ? [pid 5180] +++ exited with 0 +++ [pid 5179] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18395", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18395", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18395/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18395/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18395/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18395") = 0 mkdir("./18396", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5181 ./strace-static-x86_64: Process 5181 attached [pid 5181] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5181] chdir("./18396") = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] setpgid(0, 0) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5181] write(3, "1000", 4) = 4 [pid 5181] close(3) = 0 [pid 5181] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5181] write(1, "executing program\n", 18executing program ) = 18 [pid 5181] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5181] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5181] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5181] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5181] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5181] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5182 attached => {parent_tid=[5182]}, 88) = 5182 [pid 5182] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5182] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5182] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] <... futex resumed>) = 0 [pid 5182] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5182] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5182] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5182] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5181] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5182] <... futex resumed>) = 0 [pid 5181] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5182] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5182] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5182] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5181] <... futex resumed>) = 0 [pid 5181] exit_group(0) = ? [pid 5182] <... futex resumed>) = ? [pid 5182] +++ exited with 0 +++ [pid 5181] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18396", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18396", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18396/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18396/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18396/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18396") = 0 mkdir("./18397", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5183 ./strace-static-x86_64: Process 5183 attached [pid 5183] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5183] chdir("./18397") = 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5183] setpgid(0, 0) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5183] write(3, "1000", 4) = 4 [pid 5183] close(3) = 0 [pid 5183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5183] write(1, "executing program\n", 18executing program ) = 18 [pid 5183] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5183] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5183] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5183] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5183] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5184]}, 88) = 5184 [pid 5183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5184 attached [pid 5184] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5184] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... futex resumed>) = 1 [pid 5184] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... futex resumed>) = 1 [pid 5184] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5183] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5183] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5184] <... futex resumed>) = 1 [pid 5184] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5184] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5183] <... futex resumed>) = 0 [pid 5183] exit_group(0) = ? [pid 5184] <... futex resumed>) = ? [pid 5184] +++ exited with 0 +++ [pid 5183] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18397", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18397", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18397/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18397/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18397/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18397") = 0 mkdir("./18398", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5185 ./strace-static-x86_64: Process 5185 attached [pid 5185] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5185] chdir("./18398") = 0 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5185] setpgid(0, 0) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5185] write(3, "1000", 4) = 4 [pid 5185] close(3) = 0 [pid 5185] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5185] write(1, "executing program\n", 18executing program ) = 18 [pid 5185] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5185] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5185] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5185] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5185] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5185] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5186 attached => {parent_tid=[5186]}, 88) = 5186 [pid 5186] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5185] rt_sigprocmask(SIG_SETMASK, [], [pid 5186] <... set_robust_list resumed>) = 0 [pid 5186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5186] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5186] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5186] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5186] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5186] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5186] <... futex resumed>) = 0 [pid 5186] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5186] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5185] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5186] <... futex resumed>) = 0 [pid 5185] <... futex resumed>) = 1 [pid 5186] write(-1, "0x0000000000000001", 18 [pid 5185] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5186] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5186] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5185] <... futex resumed>) = 0 [pid 5186] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5185] exit_group(0) = ? [pid 5186] <... futex resumed>) = ? [pid 5186] +++ exited with 0 +++ [pid 5185] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18398", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18398", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18398/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18398/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18398/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18398") = 0 mkdir("./18399", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5187 ./strace-static-x86_64: Process 5187 attached [pid 5187] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5187] chdir("./18399") = 0 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5187] setpgid(0, 0) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5187] write(3, "1000", 4) = 4 [pid 5187] close(3) = 0 [pid 5187] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5187] write(1, "executing program\n", 18executing program ) = 18 [pid 5187] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5187] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5187] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5187] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5187] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5187] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5188 attached => {parent_tid=[5188]}, 88) = 5188 [pid 5188] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5188] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5188] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5188] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5188] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5188] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5188] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5187] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5188] <... futex resumed>) = 0 [pid 5187] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5188] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5188] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5188] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5187] <... futex resumed>) = 0 [pid 5187] exit_group(0) = ? [pid 5188] <... futex resumed>) = ? [pid 5188] +++ exited with 0 +++ [pid 5187] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18399", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18399", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18399/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18399/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18399/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18399") = 0 mkdir("./18400", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5189 ./strace-static-x86_64: Process 5189 attached [pid 5189] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5189] chdir("./18400") = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5189] write(3, "1000", 4) = 4 [pid 5189] close(3) = 0 [pid 5189] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5189] write(1, "executing program\n", 18executing program ) = 18 [pid 5189] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5189] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5189] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5189] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5189] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5189] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5189] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5190 attached => {parent_tid=[5190]}, 88) = 5190 [pid 5190] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5189] rt_sigprocmask(SIG_SETMASK, [], [pid 5190] <... set_robust_list resumed>) = 0 [pid 5189] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5190] rt_sigprocmask(SIG_SETMASK, [], [pid 5189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5190] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5189] <... futex resumed>) = 0 [pid 5190] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5189] <... futex resumed>) = 0 [pid 5190] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5189] <... futex resumed>) = 0 [pid 5189] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5190] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5190] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5189] <... futex resumed>) = 0 [pid 5190] <... futex resumed>) = 1 [pid 5189] exit_group(0 [pid 5190] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5189] <... exit_group resumed>) = ? [pid 5190] <... futex resumed>) = ? [pid 5190] +++ exited with 0 +++ [pid 5189] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18400", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18400", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18400/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18400/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18400/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18400") = 0 mkdir("./18401", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5191 ./strace-static-x86_64: Process 5191 attached [pid 5191] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5191] chdir("./18401") = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5191] setpgid(0, 0) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5191] write(3, "1000", 4) = 4 [pid 5191] close(3) = 0 [pid 5191] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5191] write(1, "executing program\n", 18executing program ) = 18 [pid 5191] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5191] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5191] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5191] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5191] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5192 attached [pid 5192] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5192] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] <... clone3 resumed> => {parent_tid=[5192]}, 88) = 5192 [pid 5191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5192] <... futex resumed>) = 0 [pid 5192] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5192] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... futex resumed>) = 0 [pid 5191] <... futex resumed>) = 1 [pid 5192] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5192] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5192] <... futex resumed>) = 0 [pid 5191] <... futex resumed>) = 1 [pid 5192] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5191] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5191] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5192] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5192] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5191] <... futex resumed>) = 0 [pid 5192] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5191] exit_group(0) = ? [pid 5192] <... futex resumed>) = ? [pid 5192] +++ exited with 0 +++ [pid 5191] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18401", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18401", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18401/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18401/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18401/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18401") = 0 mkdir("./18402", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5193 ./strace-static-x86_64: Process 5193 attached [pid 5193] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5193] chdir("./18402") = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] setpgid(0, 0) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5193] write(3, "1000", 4) = 4 [pid 5193] close(3) = 0 [pid 5193] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5193] write(1, "executing program\n", 18) = 18 [pid 5193] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5193] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5193] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5193] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5193] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5194 attached [pid 5194] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5193] <... clone3 resumed> => {parent_tid=[5194]}, 88) = 5194 [pid 5194] <... set_robust_list resumed>) = 0 [pid 5193] rt_sigprocmask(SIG_SETMASK, [], [pid 5194] rt_sigprocmask(SIG_SETMASK, [], [pid 5193] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5194] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5193] <... futex resumed>) = 0 [pid 5193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... futex resumed>) = 0 [pid 5193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... futex resumed>) = 1 [pid 5194] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... futex resumed>) = 0 [pid 5193] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5193] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5194] <... futex resumed>) = 1 [pid 5194] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5194] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5193] <... futex resumed>) = 0 [pid 5193] exit_group(0) = ? [pid 5194] <... futex resumed>) = ? [pid 5194] +++ exited with 0 +++ [pid 5193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18402", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18402", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18402/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18402/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18402/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18402") = 0 mkdir("./18403", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5195 ./strace-static-x86_64: Process 5195 attached [pid 5195] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5195] chdir("./18403") = 0 [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5195] setpgid(0, 0) = 0 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5195] write(3, "1000", 4) = 4 [pid 5195] close(3) = 0 [pid 5195] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5195] write(1, "executing program\n", 18executing program ) = 18 [pid 5195] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5195] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5195] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5195] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5195] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5195] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5196 attached [pid 5196] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5196] rt_sigprocmask(SIG_SETMASK, [], [pid 5195] <... clone3 resumed> => {parent_tid=[5196]}, 88) = 5196 [pid 5196] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5196] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5196] <... futex resumed>) = 0 [pid 5196] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5196] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5196] <... futex resumed>) = 0 [pid 5196] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5196] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5196] <... futex resumed>) = 0 [pid 5196] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5196] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5195] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5196] <... futex resumed>) = 0 [pid 5195] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5196] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5196] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5195] <... futex resumed>) = 0 [pid 5196] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5195] exit_group(0) = ? [pid 5196] <... futex resumed>) = ? [pid 5196] +++ exited with 0 +++ [pid 5195] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18403", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18403", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18403/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18403/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18403/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18403") = 0 mkdir("./18404", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5197 ./strace-static-x86_64: Process 5197 attached [pid 5197] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5197] chdir("./18404") = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5197] setpgid(0, 0) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5197] write(3, "1000", 4) = 4 [pid 5197] close(3) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5197] write(1, "executing program\n", 18executing program ) = 18 [pid 5197] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5197] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5197] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5197] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5198 attached => {parent_tid=[5198]}, 88) = 5198 [pid 5198] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5198] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5198] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5198] <... futex resumed>) = 0 [pid 5198] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5198] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5197] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5198] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5198] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5197] <... futex resumed>) = 0 [pid 5197] exit_group(0) = ? [pid 5198] +++ exited with 0 +++ [pid 5197] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18404", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18404", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18404/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18404/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18404/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18404") = 0 mkdir("./18405", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5199 ./strace-static-x86_64: Process 5199 attached [pid 5199] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5199] chdir("./18405") = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] write(3, "1000", 4) = 4 [pid 5199] close(3) = 0 [pid 5199] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5199] write(1, "executing program\n", 18executing program ) = 18 [pid 5199] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5199] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5199] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5199] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5199] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5200 attached => {parent_tid=[5200]}, 88) = 5200 [pid 5200] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5199] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... set_robust_list resumed>) = 0 [pid 5200] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5200] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5200] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5199] <... futex resumed>) = 0 [pid 5200] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5199] <... futex resumed>) = 0 [pid 5199] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5200] write(-1, "0x0000000000000001", 18 [pid 5199] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5200] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5200] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5199] <... futex resumed>) = 0 [pid 5199] exit_group(0) = ? [pid 5200] +++ exited with 0 +++ [pid 5199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18405", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18405", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18405/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18405/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18405/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18405") = 0 mkdir("./18406", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5201 ./strace-static-x86_64: Process 5201 attached [pid 5201] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5201] chdir("./18406") = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5201] setpgid(0, 0) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5201] write(3, "1000", 4) = 4 [pid 5201] close(3) = 0 [pid 5201] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5201] write(1, "executing program\n", 18executing program ) = 18 [pid 5201] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5201] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5201] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5201] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5201] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5202]}, 88) = 5202 [pid 5201] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5202 attached [pid 5202] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5202] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5202] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... futex resumed>) = 1 [pid 5202] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... futex resumed>) = 1 [pid 5202] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5201] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5201] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5202] <... futex resumed>) = 1 [pid 5202] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5202] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5201] <... futex resumed>) = 0 [pid 5201] exit_group(0) = ? [pid 5202] <... futex resumed>) = ? [pid 5202] +++ exited with 0 +++ [pid 5201] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18406", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18406", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18406/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18406/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18406/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18406") = 0 mkdir("./18407", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5203 ./strace-static-x86_64: Process 5203 attached [pid 5203] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5203] chdir("./18407") = 0 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5203] setpgid(0, 0) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5203] write(3, "1000", 4) = 4 [pid 5203] close(3) = 0 [pid 5203] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5203] write(1, "executing program\n", 18executing program ) = 18 [pid 5203] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5203] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5203] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5203] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5203] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5204]}, 88) = 5204 [pid 5203] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5204 attached [pid 5204] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5204] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 1 [pid 5204] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 1 [pid 5204] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5203] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5204] <... futex resumed>) = 1 [pid 5204] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5204] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5203] <... futex resumed>) = 0 [pid 5203] exit_group(0) = ? [pid 5204] <... futex resumed>) = ? [pid 5204] +++ exited with 0 +++ [pid 5203] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18407", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18407", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18407/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18407/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18407/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18407") = 0 mkdir("./18408", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5205 attached , child_tidptr=0x55558931b690) = 5205 [pid 5205] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5205] chdir("./18408") = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5205] setpgid(0, 0) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5205] write(3, "1000", 4) = 4 [pid 5205] close(3) = 0 [pid 5205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5205] write(1, "executing program\n", 18executing program ) = 18 [pid 5205] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5205] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5205] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5205] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5206 attached => {parent_tid=[5206]}, 88) = 5206 [pid 5205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5206] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 0 [pid 5205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... futex resumed>) = 1 [pid 5206] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 0 [pid 5205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... futex resumed>) = 1 [pid 5206] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 0 [pid 5205] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5205] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5206] <... futex resumed>) = 1 [pid 5206] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5206] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5205] <... futex resumed>) = 0 [pid 5205] exit_group(0) = ? [pid 5206] <... futex resumed>) = ? [pid 5206] +++ exited with 0 +++ [pid 5205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18408", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18408", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18408/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18408/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18408/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18408") = 0 mkdir("./18409", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5207 ./strace-static-x86_64: Process 5207 attached [pid 5207] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5207] chdir("./18409") = 0 [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5207] setpgid(0, 0) = 0 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5207] write(3, "1000", 4) = 4 [pid 5207] close(3) = 0 [pid 5207] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5207] write(1, "executing program\n", 18executing program ) = 18 [pid 5207] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5207] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5207] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5207] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5207] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5208]}, 88) = 5208 [pid 5207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5208 attached [pid 5208] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5208] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... futex resumed>) = 1 [pid 5208] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... futex resumed>) = 1 [pid 5208] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5207] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5207] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5208] <... futex resumed>) = 1 [pid 5208] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5208] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5207] <... futex resumed>) = 0 [pid 5207] exit_group(0) = ? [pid 5208] <... futex resumed>) = ? [pid 5208] +++ exited with 0 +++ [pid 5207] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18409", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18409", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18409/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18409/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18409/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18409") = 0 mkdir("./18410", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5209 ./strace-static-x86_64: Process 5209 attached [pid 5209] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5209] chdir("./18410") = 0 [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5209] setpgid(0, 0) = 0 [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5209] write(3, "1000", 4) = 4 [pid 5209] close(3) = 0 [pid 5209] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5209] write(1, "executing program\n", 18executing program ) = 18 [pid 5209] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5209] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5209] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5209] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5209] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5209] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5210 attached [pid 5210] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5210] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] <... clone3 resumed> => {parent_tid=[5210]}, 88) = 5210 [pid 5209] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5210] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5210] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5210] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5209] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5210] <... futex resumed>) = 0 [pid 5210] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5210] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5210] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5209] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5209] exit_group(0) = ? [pid 5210] <... futex resumed>) = ? [pid 5210] +++ exited with 0 +++ [pid 5209] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18410", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18410", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18410/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18410/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18410/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18410") = 0 mkdir("./18411", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5211 attached , child_tidptr=0x55558931b690) = 5211 [pid 5211] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5211] chdir("./18411") = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5211] setpgid(0, 0) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5211] write(3, "1000", 4) = 4 [pid 5211] close(3) = 0 [pid 5211] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5211] write(1, "executing program\n", 18executing program ) = 18 [pid 5211] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5211] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5211] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5211] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5211] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5212]}, 88) = 5212 [pid 5211] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5212 attached [pid 5212] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5212] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5212] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 1 [pid 5212] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 1 [pid 5212] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5211] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5212] <... futex resumed>) = 1 [pid 5212] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5212] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5211] <... futex resumed>) = 0 [pid 5211] exit_group(0) = ? [pid 5212] <... futex resumed>) = ? [pid 5212] +++ exited with 0 +++ [pid 5211] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18411", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18411", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18411/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18411/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18411/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18411") = 0 mkdir("./18412", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5213 ./strace-static-x86_64: Process 5213 attached [pid 5213] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5213] chdir("./18412") = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] setpgid(0, 0) = 0 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5213] write(3, "1000", 4) = 4 [pid 5213] close(3) = 0 [pid 5213] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5213] write(1, "executing program\n", 18) = 18 [pid 5213] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5213] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5213] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5213] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5213] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5214]}, 88) = 5214 [pid 5213] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5214 attached [pid 5214] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5214] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... futex resumed>) = 1 [pid 5214] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5214] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5213] <... futex resumed>) = 0 [pid 5213] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5213] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5214] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5214] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5213] <... futex resumed>) = 0 [pid 5214] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5213] exit_group(0) = ? [pid 5214] <... futex resumed>) = ? [pid 5214] +++ exited with 0 +++ [pid 5213] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18412", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18412", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18412/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18412/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18412/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18412") = 0 mkdir("./18413", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5215 ./strace-static-x86_64: Process 5215 attached [pid 5215] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5215] chdir("./18413") = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5215] setpgid(0, 0) = 0 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1000", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5215] write(1, "executing program\n", 18executing program ) = 18 [pid 5215] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5215] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5215] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5215] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5215] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5216 attached => {parent_tid=[5216]}, 88) = 5216 [pid 5216] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5215] rt_sigprocmask(SIG_SETMASK, [], [pid 5216] <... set_robust_list resumed>) = 0 [pid 5215] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5216] rt_sigprocmask(SIG_SETMASK, [], [pid 5215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5215] <... futex resumed>) = 0 [pid 5216] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5215] <... futex resumed>) = 0 [pid 5216] <... futex resumed>) = 1 [pid 5215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5216] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5215] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5215] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5216] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5216] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5215] <... futex resumed>) = 0 [pid 5215] exit_group(0) = ? [pid 5216] +++ exited with 0 +++ [pid 5215] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18413", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18413", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18413/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18413/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18413/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18413") = 0 mkdir("./18414", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5217 ./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5217] chdir("./18414") = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 [pid 5217] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5217] write(1, "executing program\n", 18executing program ) = 18 [pid 5217] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5217] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5217] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5217] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5217] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5217] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5218 attached [pid 5218] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5218] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5218] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] <... clone3 resumed> => {parent_tid=[5218]}, 88) = 5218 [pid 5217] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5218] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5218] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5218] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5218] <... futex resumed>) = 0 [pid 5218] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5218] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5218] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5217] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5217] exit_group(0) = ? [pid 5218] <... futex resumed>) = ? [pid 5218] +++ exited with 0 +++ [pid 5217] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18414", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18414", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18414/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18414/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18414/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18414") = 0 mkdir("./18415", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5219 attached , child_tidptr=0x55558931b690) = 5219 [pid 5219] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5219] chdir("./18415") = 0 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5219] setpgid(0, 0) = 0 [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5219] write(3, "1000", 4) = 4 [pid 5219] close(3) = 0 [pid 5219] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5219] write(1, "executing program\n", 18executing program ) = 18 [pid 5219] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5219] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5219] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5219] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5219] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5220 attached => {parent_tid=[5220]}, 88) = 5220 [pid 5220] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... set_robust_list resumed>) = 0 [pid 5220] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5220] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5220] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5219] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5219] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5220] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5220] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5219] <... futex resumed>) = 0 [pid 5219] exit_group(0) = ? [pid 5220] +++ exited with 0 +++ [pid 5219] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18415", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18415", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18415/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18415/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18415/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18415") = 0 mkdir("./18416", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5221 ./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5221] chdir("./18416") = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] write(1, "executing program\n", 18executing program ) = 18 [pid 5221] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5221] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5221] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5221] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5221] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5221] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5222 attached => {parent_tid=[5222]}, 88) = 5222 [pid 5222] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5222] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5222] <... futex resumed>) = 0 [pid 5222] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5222] <... futex resumed>) = 0 [pid 5222] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5222] <... futex resumed>) = 0 [pid 5222] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5222] <... futex resumed>) = 0 [pid 5222] write(-1, "0x0000000000000001", 18 [pid 5221] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5222] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5222] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5222] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5221] exit_group(0) = ? [pid 5222] <... futex resumed>) = ? [pid 5222] +++ exited with 0 +++ [pid 5221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18416", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18416", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18416/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18416/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18416/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18416") = 0 mkdir("./18417", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5223 ./strace-static-x86_64: Process 5223 attached [pid 5223] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5223] chdir("./18417") = 0 [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5223] setpgid(0, 0) = 0 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5223] write(3, "1000", 4) = 4 [pid 5223] close(3) = 0 executing program [pid 5223] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5223] write(1, "executing program\n", 18) = 18 [pid 5223] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5223] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5223] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5223] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5223] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5224 attached => {parent_tid=[5224]}, 88) = 5224 [pid 5223] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5224] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5224] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] <... futex resumed>) = 1 [pid 5224] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5223] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5223] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5224] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5224] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5223] <... futex resumed>) = 0 [pid 5223] exit_group(0) = ? [pid 5224] +++ exited with 0 +++ [pid 5223] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18417", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18417", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18417/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18417/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18417/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18417") = 0 mkdir("./18418", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5225 ./strace-static-x86_64: Process 5225 attached [pid 5225] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5225] chdir("./18418") = 0 [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5225] setpgid(0, 0) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1000", 4) = 4 [pid 5225] close(3) = 0 executing program [pid 5225] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5225] write(1, "executing program\n", 18) = 18 [pid 5225] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5225] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5225] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5225] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5225] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5225] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5226 attached => {parent_tid=[5226]}, 88) = 5226 [pid 5226] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5225] rt_sigprocmask(SIG_SETMASK, [], [pid 5226] <... set_robust_list resumed>) = 0 [pid 5225] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5226] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5225] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5225] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5226] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5226] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5225] <... futex resumed>) = 0 [pid 5225] exit_group(0) = ? [pid 5226] +++ exited with 0 +++ [pid 5225] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18418", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18418", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18418/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18418/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18418/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18418") = 0 mkdir("./18419", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached , child_tidptr=0x55558931b690) = 5227 [pid 5227] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5227] chdir("./18419") = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5227] write(1, "executing program\n", 18) = 18 [pid 5227] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5227] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5227] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5227] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5227] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5228 attached => {parent_tid=[5228]}, 88) = 5228 [pid 5228] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5227] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] <... set_robust_list resumed>) = 0 [pid 5228] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5228] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5227] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5227] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5228] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5228] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5227] <... futex resumed>) = 0 [pid 5228] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5227] exit_group(0) = ? [pid 5228] <... futex resumed>) = ? [pid 5228] +++ exited with 0 +++ [pid 5227] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18419", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18419", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18419/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18419/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18419/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18419") = 0 mkdir("./18420", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5229 ./strace-static-x86_64: Process 5229 attached [pid 5229] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5229] chdir("./18420") = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1000", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5229] write(1, "executing program\n", 18) = 18 [pid 5229] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5229] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5229] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5229] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5229] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5230 attached => {parent_tid=[5230]}, 88) = 5230 [pid 5230] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5229] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5230] <... set_robust_list resumed>) = 0 [pid 5229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5230] rt_sigprocmask(SIG_SETMASK, [], [pid 5229] <... futex resumed>) = 0 [pid 5230] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5230] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5229] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5229] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5230] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5230] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5229] <... futex resumed>) = 0 [pid 5229] exit_group(0) = ? [pid 5230] +++ exited with 0 +++ [pid 5229] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18420", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18420", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18420/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18420/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18420/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18420") = 0 mkdir("./18421", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5231 attached , child_tidptr=0x55558931b690) = 5231 [pid 5231] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5231] chdir("./18421") = 0 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5231] setpgid(0, 0) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5231] write(3, "1000", 4) = 4 [pid 5231] close(3) = 0 [pid 5231] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5231] write(1, "executing program\n", 18) = 18 [pid 5231] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5231] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5231] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5231] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5231] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5232]}, 88) = 5232 [pid 5231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5232 attached [pid 5232] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5232] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5232] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 1 [pid 5232] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 1 [pid 5232] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5231] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5232] <... futex resumed>) = 1 [pid 5232] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5232] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5231] <... futex resumed>) = 0 [pid 5231] exit_group(0) = ? [pid 5232] <... futex resumed>) = ? [pid 5232] +++ exited with 0 +++ [pid 5231] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18421", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18421", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18421/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18421/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18421/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18421") = 0 mkdir("./18422", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5233 attached , child_tidptr=0x55558931b690) = 5233 [pid 5233] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5233] chdir("./18422") = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] setpgid(0, 0) = 0 [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1000", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5233] write(1, "executing program\n", 18) = 18 [pid 5233] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5233] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5233] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5233] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5233] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5234]}, 88) = 5234 [pid 5233] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5234 attached [pid 5234] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5234] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5234] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5234] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5234] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5234] <... futex resumed>) = 0 [pid 5234] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5234] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5234] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5233] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5233] exit_group(0) = ? [pid 5234] <... futex resumed>) = ? [pid 5234] +++ exited with 0 +++ [pid 5233] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18422", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18422", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18422/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18422/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18422/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18422") = 0 mkdir("./18423", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5235 ./strace-static-x86_64: Process 5235 attached [pid 5235] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5235] chdir("./18423") = 0 [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5235] setpgid(0, 0) = 0 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5235] write(3, "1000", 4) = 4 [pid 5235] close(3) = 0 [pid 5235] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5235] write(1, "executing program\n", 18) = 18 [pid 5235] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5235] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5235] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5235] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5235] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5236]}, 88) = 5236 ./strace-static-x86_64: Process 5236 attached [pid 5235] rt_sigprocmask(SIG_SETMASK, [], [pid 5236] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5235] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5236] <... set_robust_list resumed>) = 0 [pid 5236] rt_sigprocmask(SIG_SETMASK, [], [pid 5235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5236] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5235] <... futex resumed>) = 0 [pid 5235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5235] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5235] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5236] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5236] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5235] <... futex resumed>) = 0 [pid 5235] exit_group(0) = ? [pid 5236] +++ exited with 0 +++ [pid 5235] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18423", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18423", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18423/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18423/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18423/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18423") = 0 mkdir("./18424", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5237 ./strace-static-x86_64: Process 5237 attached [pid 5237] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5237] chdir("./18424") = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5237] setpgid(0, 0) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5237] write(1, "executing program\n", 18executing program ) = 18 [pid 5237] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5237] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5237] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5237] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5237] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5237] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5238 attached => {parent_tid=[5238]}, 88) = 5238 [pid 5238] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5238] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5238] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5238] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5238] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5238] <... futex resumed>) = 0 [pid 5238] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5238] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5238] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5237] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5237] exit_group(0) = ? [pid 5238] <... futex resumed>) = ? [pid 5238] +++ exited with 0 +++ [pid 5237] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18424", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18424", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18424/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18424/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18424/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18424") = 0 mkdir("./18425", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5239 ./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5239] chdir("./18425") = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 [pid 5239] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5239] write(1, "executing program\n", 18) = 18 [pid 5239] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5239] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5239] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5239] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5239] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5240]}, 88) = 5240 [pid 5239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5240 attached [pid 5240] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5240] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5240] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5239] <... futex resumed>) = 0 [pid 5239] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5239] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5240] <... futex resumed>) = 1 [pid 5240] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5240] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5239] <... futex resumed>) = 0 [pid 5239] exit_group(0) = ? [pid 5240] +++ exited with 0 +++ [pid 5239] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18425", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18425", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18425/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18425/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18425/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18425") = 0 mkdir("./18426", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5241 attached , child_tidptr=0x55558931b690) = 5241 [pid 5241] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5241] chdir("./18426") = 0 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5241] setpgid(0, 0) = 0 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5241] write(3, "1000", 4) = 4 [pid 5241] close(3) = 0 [pid 5241] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5241] write(1, "executing program\n", 18) = 18 [pid 5241] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5241] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5241] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5241] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5241] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5242 attached => {parent_tid=[5242]}, 88) = 5242 [pid 5241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5242] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5242] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... futex resumed>) = 1 [pid 5242] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... futex resumed>) = 1 [pid 5242] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 0 [pid 5241] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5241] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5242] <... futex resumed>) = 1 [pid 5242] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5242] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5241] <... futex resumed>) = 0 [pid 5241] exit_group(0) = ? [pid 5242] <... futex resumed>) = ? [pid 5242] +++ exited with 0 +++ [pid 5241] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18426", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18426", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18426/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18426/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18426/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18426") = 0 mkdir("./18427", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached , child_tidptr=0x55558931b690) = 5243 [pid 5243] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5243] chdir("./18427") = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5243] setpgid(0, 0) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3) = 0 [pid 5243] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5243] write(1, "executing program\n", 18executing program ) = 18 [pid 5243] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5243] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5243] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5243] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5243] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5243] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5244 attached => {parent_tid=[5244]}, 88) = 5244 [pid 5244] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5244] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5244] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5244] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5244] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5244] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5244] <... futex resumed>) = 0 [pid 5244] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5244] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5244] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5243] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5243] exit_group(0) = ? [pid 5244] <... futex resumed>) = ? [pid 5244] +++ exited with 0 +++ [pid 5243] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18427", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18427", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18427/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18427/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18427/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18427") = 0 mkdir("./18428", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5245 ./strace-static-x86_64: Process 5245 attached [pid 5245] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5245] chdir("./18428") = 0 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5245] setpgid(0, 0) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5245] write(3, "1000", 4) = 4 [pid 5245] close(3) = 0 [pid 5245] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5245] write(1, "executing program\n", 18) = 18 [pid 5245] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5245] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5245] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5245] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5245] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5246 attached [pid 5246] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5245] <... clone3 resumed> => {parent_tid=[5246]}, 88) = 5246 [pid 5245] rt_sigprocmask(SIG_SETMASK, [], [pid 5246] <... set_robust_list resumed>) = 0 [pid 5245] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5246] rt_sigprocmask(SIG_SETMASK, [], [pid 5245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5246] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5245] <... futex resumed>) = 0 [pid 5246] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5245] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5245] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5246] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5246] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5245] <... futex resumed>) = 0 [pid 5245] exit_group(0) = ? [pid 5246] +++ exited with 0 +++ [pid 5245] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18428", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18428", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18428/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18428/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18428/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18428") = 0 mkdir("./18429", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5247 ./strace-static-x86_64: Process 5247 attached [pid 5247] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5247] chdir("./18429") = 0 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5247] setpgid(0, 0) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5247] write(3, "1000", 4) = 4 [pid 5247] close(3) = 0 [pid 5247] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5247] write(1, "executing program\n", 18) = 18 [pid 5247] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5247] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5247] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5247] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5247] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5248]}, 88) = 5248 [pid 5247] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ./strace-static-x86_64: Process 5248 attached [pid 5247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5248] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5247] <... futex resumed>) = 0 [pid 5248] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5247] <... futex resumed>) = 0 [pid 5247] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5247] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5248] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5248] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5247] <... futex resumed>) = 0 [pid 5247] exit_group(0) = ? [pid 5248] +++ exited with 0 +++ [pid 5247] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18429", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18429", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18429/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18429/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18429/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18429") = 0 mkdir("./18430", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5249 ./strace-static-x86_64: Process 5249 attached [pid 5249] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5249] chdir("./18430") = 0 [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5249] setpgid(0, 0) = 0 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5249] write(3, "1000", 4) = 4 [pid 5249] close(3) = 0 [pid 5249] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5249] write(1, "executing program\n", 18executing program ) = 18 [pid 5249] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5249] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5249] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5249] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5249] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5249] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5250 attached => {parent_tid=[5250]}, 88) = 5250 [pid 5250] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5250] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5250] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5250] <... futex resumed>) = 0 [pid 5250] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5250] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5250] <... futex resumed>) = 0 [pid 5250] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5250] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5250] <... futex resumed>) = 0 [pid 5250] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5250] <... futex resumed>) = 0 [pid 5249] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5250] write(-1, "0x0000000000000001", 18 [pid 5249] <... futex resumed>) = 0 [pid 5249] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5250] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5250] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5249] <... futex resumed>) = 0 [pid 5249] exit_group(0) = ? [pid 5250] +++ exited with 0 +++ [pid 5249] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18430", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18430", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18430/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18430/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18430/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18430") = 0 mkdir("./18431", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5251 ./strace-static-x86_64: Process 5251 attached [pid 5251] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5251] chdir("./18431") = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5251] setpgid(0, 0) = 0 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] write(3, "1000", 4) = 4 [pid 5251] close(3) = 0 [pid 5251] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5251] write(1, "executing program\n", 18executing program ) = 18 [pid 5251] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5251] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5251] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5251] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5251] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5252]}, 88) = 5252 [pid 5251] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5252 attached [pid 5252] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5252] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5252] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5251] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5252] <... futex resumed>) = 1 [pid 5252] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5252] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5251] <... futex resumed>) = 0 [pid 5251] exit_group(0) = ? [pid 5252] <... futex resumed>) = ? [pid 5252] +++ exited with 0 +++ [pid 5251] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18431", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18431", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18431/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18431/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18431/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18431") = 0 mkdir("./18432", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5253 ./strace-static-x86_64: Process 5253 attached [pid 5253] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5253] chdir("./18432") = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5253] setpgid(0, 0) = 0 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5253] write(3, "1000", 4) = 4 [pid 5253] close(3) = 0 [pid 5253] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5253] write(1, "executing program\n", 18) = 18 [pid 5253] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5253] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5253] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5253] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5253] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5254]}, 88) = 5254 [pid 5253] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5254 attached [pid 5254] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5254] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5254] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] <... futex resumed>) = 0 [pid 5253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5254] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5254] <... futex resumed>) = 0 [pid 5254] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5254] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5253] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5254] <... futex resumed>) = 0 [pid 5254] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5254] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5254] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5253] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5253] exit_group(0) = ? [pid 5254] <... futex resumed>) = ? [pid 5254] +++ exited with 0 +++ [pid 5253] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18432", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18432", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18432/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18432/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18432/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18432") = 0 mkdir("./18433", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5255 attached , child_tidptr=0x55558931b690) = 5255 [pid 5255] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5255] chdir("./18433") = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5255] setpgid(0, 0) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5255] write(3, "1000", 4) = 4 [pid 5255] close(3) = 0 [pid 5255] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5255] write(1, "executing program\n", 18) = 18 [pid 5255] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5255] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5256 attached => {parent_tid=[5256]}, 88) = 5256 [pid 5255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5256] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5256] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = 0 [pid 5255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... futex resumed>) = 1 [pid 5256] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = 0 [pid 5255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... futex resumed>) = 1 [pid 5256] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5255] <... futex resumed>) = 0 [pid 5255] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5255] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5256] <... futex resumed>) = 1 [pid 5256] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5256] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5255] <... futex resumed>) = 0 [pid 5255] exit_group(0) = ? [pid 5256] +++ exited with 0 +++ [pid 5255] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18433", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18433", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18433/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18433/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18433/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18433") = 0 mkdir("./18434", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5257 ./strace-static-x86_64: Process 5257 attached [pid 5257] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5257] chdir("./18434") = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5257] setpgid(0, 0) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5257] write(3, "1000", 4) = 4 [pid 5257] close(3) = 0 [pid 5257] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5257] write(1, "executing program\n", 18executing program ) = 18 [pid 5257] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5257] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5257] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5258]}, 88) = 5258 [pid 5257] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5258 attached [pid 5258] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5258] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5257] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5258] <... futex resumed>) = 1 [pid 5258] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5258] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5257] <... futex resumed>) = 0 [pid 5257] exit_group(0) = ? [pid 5258] <... futex resumed>) = ? [pid 5258] +++ exited with 0 +++ [pid 5257] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18434", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18434", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18434/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18434/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18434/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18434") = 0 mkdir("./18435", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5259 attached [pid 5259] set_robust_list(0x55558931b6a0, 24) = 0 [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 5259 [pid 5259] chdir("./18435") = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5259] setpgid(0, 0) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5259] write(3, "1000", 4) = 4 [pid 5259] close(3) = 0 [pid 5259] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5259] write(1, "executing program\n", 18executing program ) = 18 [pid 5259] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5259] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5259] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5259] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5260]}, 88) = 5260 [pid 5259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5260 attached [pid 5260] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5260] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5260] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] <... futex resumed>) = 0 [pid 5260] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5259] <... futex resumed>) = 0 [pid 5259] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5259] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5260] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5260] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5259] <... futex resumed>) = 0 [pid 5259] exit_group(0) = ? [pid 5260] +++ exited with 0 +++ [pid 5259] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18435", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18435", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18435/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18435/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18435/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18435") = 0 mkdir("./18436", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5261 ./strace-static-x86_64: Process 5261 attached [pid 5261] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5261] chdir("./18436") = 0 [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5261] setpgid(0, 0) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5261] write(3, "1000", 4) = 4 [pid 5261] close(3) = 0 [pid 5261] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5261] write(1, "executing program\n", 18executing program ) = 18 [pid 5261] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5261] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5261] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5261] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5261] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5261] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5262 attached [pid 5262] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5262] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5261] <... clone3 resumed> => {parent_tid=[5262]}, 88) = 5262 [pid 5261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5262] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5262] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5262] <... futex resumed>) = 0 [pid 5262] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5261] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5261] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5262] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5262] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5261] <... futex resumed>) = 0 [pid 5261] exit_group(0) = ? [pid 5262] +++ exited with 0 +++ [pid 5261] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18436", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18436", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18436/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18436/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18436/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18436") = 0 mkdir("./18437", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5263 attached , child_tidptr=0x55558931b690) = 5263 [pid 5263] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5263] chdir("./18437") = 0 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5263] setpgid(0, 0) = 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5263] write(3, "1000", 4) = 4 [pid 5263] close(3) = 0 [pid 5263] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5263] write(1, "executing program\n", 18) = 18 [pid 5263] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5263] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5263] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5264]}, 88) = 5264 [pid 5263] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5264 attached [pid 5264] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5264] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... futex resumed>) = 1 [pid 5264] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5263] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5264] <... futex resumed>) = 1 [pid 5264] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5264] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5263] <... futex resumed>) = 0 [pid 5263] exit_group(0) = ? [pid 5264] <... futex resumed>) = ? [pid 5264] +++ exited with 0 +++ [pid 5263] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18437", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18437", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18437/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18437/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18437/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18437") = 0 mkdir("./18438", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5265 ./strace-static-x86_64: Process 5265 attached [pid 5265] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5265] chdir("./18438") = 0 [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5265] setpgid(0, 0) = 0 [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5265] write(3, "1000", 4) = 4 [pid 5265] close(3) = 0 [pid 5265] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5265] write(1, "executing program\n", 18executing program ) = 18 [pid 5265] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5265] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5265] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5265] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5265] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5266 attached => {parent_tid=[5266]}, 88) = 5266 [pid 5266] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5266] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5266] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5266] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5266] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5265] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5266] <... futex resumed>) = 0 [pid 5266] write(-1, "0x0000000000000001", 18 [pid 5265] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5266] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5266] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5265] <... futex resumed>) = 0 [pid 5265] exit_group(0) = ? [pid 5266] +++ exited with 0 +++ [pid 5265] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18438", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18438", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18438/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18438/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18438/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18438") = 0 mkdir("./18439", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5267 ./strace-static-x86_64: Process 5267 attached [pid 5267] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5267] chdir("./18439") = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5267] setpgid(0, 0) = 0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5267] write(3, "1000", 4) = 4 [pid 5267] close(3) = 0 [pid 5267] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5267] write(1, "executing program\n", 18executing program ) = 18 [pid 5267] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5267] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5267] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5267] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5267] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5267] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5267] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5268 attached => {parent_tid=[5268]}, 88) = 5268 [pid 5268] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5268] <... set_robust_list resumed>) = 0 [pid 5267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] rt_sigprocmask(SIG_SETMASK, [], [pid 5267] <... futex resumed>) = 0 [pid 5268] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5268] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5267] <... futex resumed>) = 0 [pid 5268] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5268] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5267] <... futex resumed>) = 0 [pid 5268] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5268] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5267] <... futex resumed>) = 0 [pid 5267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5268] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5267] <... futex resumed>) = 0 [pid 5267] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5267] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5268] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5268] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5267] <... futex resumed>) = 0 [pid 5267] exit_group(0) = ? [pid 5268] +++ exited with 0 +++ [pid 5267] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18439", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18439", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18439/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18439/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18439/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18439") = 0 mkdir("./18440", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5269 attached , child_tidptr=0x55558931b690) = 5269 [pid 5269] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5269] chdir("./18440") = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5269] setpgid(0, 0) = 0 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5269] write(3, "1000", 4) = 4 [pid 5269] close(3) = 0 [pid 5269] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5269] write(1, "executing program\n", 18) = 18 [pid 5269] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5269] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5269] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5270]}, 88) = 5270 [pid 5269] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5270 attached [pid 5270] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5270] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5270] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 1 [pid 5270] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5270] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 1 [pid 5270] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5270] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5269] <... futex resumed>) = 0 [pid 5269] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5269] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5270] <... futex resumed>) = 1 [pid 5270] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5270] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5269] <... futex resumed>) = 0 [pid 5269] exit_group(0) = ? [pid 5270] +++ exited with 0 +++ [pid 5269] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18440", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18440", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18440/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18440/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18440/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18440") = 0 mkdir("./18441", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5271 ./strace-static-x86_64: Process 5271 attached [pid 5271] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5271] chdir("./18441") = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5271] setpgid(0, 0) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5271] write(3, "1000", 4) = 4 [pid 5271] close(3) = 0 [pid 5271] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5271] write(1, "executing program\n", 18executing program ) = 18 [pid 5271] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5271] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5271] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5271] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5271] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5271] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5272 attached [pid 5272] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5272] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] <... clone3 resumed> => {parent_tid=[5272]}, 88) = 5272 [pid 5271] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5271] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5272] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5271] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5272] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5271] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5272] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5271] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5272] <... futex resumed>) = 0 [pid 5272] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5272] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5272] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5271] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5271] exit_group(0) = ? [pid 5272] <... futex resumed>) = ? [pid 5272] +++ exited with 0 +++ [pid 5271] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18441", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18441", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18441/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18441/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18441/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18441") = 0 mkdir("./18442", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5273 attached [pid 5273] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5273] chdir("./18442" [pid 554] <... clone resumed>, child_tidptr=0x55558931b690) = 5273 [pid 5273] <... chdir resumed>) = 0 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5273] setpgid(0, 0) = 0 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5273] write(3, "1000", 4) = 4 [pid 5273] close(3) = 0 [pid 5273] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5273] write(1, "executing program\n", 18) = 18 [pid 5273] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5273] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5273] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5273] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5273] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5274]}, 88) = 5274 [pid 5273] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5273] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5274 attached [pid 5274] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5274] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5274] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5273] <... futex resumed>) = 0 [pid 5273] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5274] <... futex resumed>) = 1 [pid 5274] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5274] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5273] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5274] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5274] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5273] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5273] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5274] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5274] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5273] <... futex resumed>) = 0 [pid 5273] exit_group(0) = ? [pid 5274] +++ exited with 0 +++ [pid 5273] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18442", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18442", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18442/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18442/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18442/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18442") = 0 mkdir("./18443", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5275 ./strace-static-x86_64: Process 5275 attached [pid 5275] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5275] chdir("./18443") = 0 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5275] setpgid(0, 0) = 0 [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5275] write(3, "1000", 4) = 4 [pid 5275] close(3) = 0 [pid 5275] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5275] write(1, "executing program\n", 18executing program ) = 18 [pid 5275] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5275] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5275] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5275] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5275] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5276 attached => {parent_tid=[5276]}, 88) = 5276 [pid 5275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5275] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5276] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5276] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5275] <... futex resumed>) = 0 [pid 5275] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5276] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5275] <... futex resumed>) = 0 [pid 5275] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5276] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5275] <... futex resumed>) = 0 [pid 5275] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5275] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5276] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5276] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5275] <... futex resumed>) = 0 [pid 5275] exit_group(0) = ? [pid 5276] +++ exited with 0 +++ [pid 5275] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18443", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18443", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18443/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18443/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18443/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18443") = 0 mkdir("./18444", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5277 ./strace-static-x86_64: Process 5277 attached [pid 5277] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5277] chdir("./18444") = 0 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5277] setpgid(0, 0) = 0 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5277] write(3, "1000", 4) = 4 [pid 5277] close(3) = 0 [pid 5277] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5277] write(1, "executing program\n", 18executing program ) = 18 [pid 5277] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5277] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5277] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5277] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5278 attached => {parent_tid=[5278]}, 88) = 5278 [pid 5278] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5277] rt_sigprocmask(SIG_SETMASK, [], [pid 5278] <... set_robust_list resumed>) = 0 [pid 5277] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5278] rt_sigprocmask(SIG_SETMASK, [], [pid 5277] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5278] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5277] <... futex resumed>) = 0 [pid 5278] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5277] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5278] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5278] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5277] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5277] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5278] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5278] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5277] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5277] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5278] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5278] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5277] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5277] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5278] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5278] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5277] <... futex resumed>) = 0 [pid 5278] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5277] exit_group(0) = ? [pid 5278] <... futex resumed>) = ? [pid 5278] +++ exited with 0 +++ [pid 5277] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18444", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18444", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18444/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18444/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18444/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18444") = 0 mkdir("./18445", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5280 ./strace-static-x86_64: Process 5280 attached [pid 5280] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5280] chdir("./18445") = 0 [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5280] setpgid(0, 0) = 0 [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5280] write(3, "1000", 4) = 4 [pid 5280] close(3) = 0 [pid 5280] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5280] write(1, "executing program\n", 18executing program ) = 18 [pid 5280] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5280] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5280] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5280] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5280] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5280] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5281 attached => {parent_tid=[5281]}, 88) = 5281 [pid 5281] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5280] rt_sigprocmask(SIG_SETMASK, [], [pid 5281] <... set_robust_list resumed>) = 0 [pid 5280] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5281] rt_sigprocmask(SIG_SETMASK, [], [pid 5280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = 1 [pid 5280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5280] <... futex resumed>) = 0 [pid 5280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5280] <... futex resumed>) = 0 [pid 5281] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5281] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5280] <... futex resumed>) = 0 [pid 5281] <... futex resumed>) = 0 [pid 5280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5280] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5281] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5280] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5281] write(-1, "0x0000000000000001", 18 [pid 5280] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5281] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5281] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5281] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5280] <... futex resumed>) = 0 [pid 5280] exit_group(0) = ? [pid 5281] <... futex resumed>) = ? [pid 5281] +++ exited with 0 +++ [pid 5280] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18445", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18445", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18445/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18445/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18445/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18445") = 0 mkdir("./18446", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5282 ./strace-static-x86_64: Process 5282 attached [pid 5282] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5282] chdir("./18446") = 0 [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5282] setpgid(0, 0) = 0 [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5282] write(3, "1000", 4) = 4 [pid 5282] close(3) = 0 [pid 5282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5282] write(1, "executing program\n", 18executing program ) = 18 [pid 5282] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5282] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5282] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5282] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5282] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0} => {parent_tid=[5283]}, 88) = 5283 [pid 5282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5283 attached [pid 5283] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5283] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5283] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5282] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5283] <... futex resumed>) = 1 [pid 5283] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5283] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5282] <... futex resumed>) = 0 [pid 5282] exit_group(0) = ? [pid 5283] <... futex resumed>) = ? [pid 5283] +++ exited with 0 +++ [pid 5282] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18446", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18446", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18446/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18446/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18446/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18446") = 0 mkdir("./18447", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5284 ./strace-static-x86_64: Process 5284 attached [pid 5284] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5284] chdir("./18447") = 0 [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5284] setpgid(0, 0) = 0 [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5284] write(3, "1000", 4) = 4 [pid 5284] close(3) = 0 [pid 5284] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5284] write(1, "executing program\n", 18executing program ) = 18 [pid 5284] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5284] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5284] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5284] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5284] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5284] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5285 attached => {parent_tid=[5285]}, 88) = 5285 [pid 5285] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5285] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5285] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5285] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5285] <... futex resumed>) = 0 [pid 5285] write(-1, "0x0000000000000001", 18 [pid 5284] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5285] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5285] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5285] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5284] exit_group(0) = ? [pid 5285] <... futex resumed>) = ? [pid 5285] +++ exited with 0 +++ [pid 5284] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- umount2("./18447", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18447", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18447/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18447/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18447/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18447") = 0 mkdir("./18448", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5286 ./strace-static-x86_64: Process 5286 attached [pid 5286] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5286] chdir("./18448") = 0 [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5286] setpgid(0, 0) = 0 [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5286] write(3, "1000", 4) = 4 [pid 5286] close(3) = 0 [pid 5286] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5286] write(1, "executing program\n", 18executing program ) = 18 [pid 5286] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5286] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5286] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5286] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5286] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5287 attached => {parent_tid=[5287]}, 88) = 5287 [pid 5287] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5287] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5287] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5287] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5287] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5287] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5287] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5287] <... futex resumed>) = 0 [pid 5287] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5287] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5287] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5286] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5286] exit_group(0) = ? [pid 5287] <... futex resumed>) = ? [pid 5287] +++ exited with 0 +++ [pid 5286] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18448", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18448", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18448/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18448/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18448/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18448") = 0 mkdir("./18449", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5288 ./strace-static-x86_64: Process 5288 attached [pid 5288] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5288] chdir("./18449") = 0 [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5288] setpgid(0, 0) = 0 [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5288] write(3, "1000", 4) = 4 [pid 5288] close(3) = 0 [pid 5288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5288] write(1, "executing program\n", 18executing program ) = 18 [pid 5288] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5288] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5288] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5289 attached => {parent_tid=[5289]}, 88) = 5289 [pid 5289] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5289] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5288] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5289] <... futex resumed>) = 0 [pid 5288] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5289] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5289] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5288] <... futex resumed>) = 0 [pid 5289] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5288] exit_group(0) = ? [pid 5289] <... futex resumed>) = ? [pid 5289] +++ exited with 0 +++ [pid 5288] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18449", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18449", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18449/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18449/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18449/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18449") = 0 mkdir("./18450", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5290 ./strace-static-x86_64: Process 5290 attached [pid 5290] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5290] chdir("./18450") = 0 [pid 5290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5290] setpgid(0, 0) = 0 [pid 5290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5290] write(3, "1000", 4) = 4 [pid 5290] close(3) = 0 [pid 5290] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5290] write(1, "executing program\n", 18executing program ) = 18 [pid 5290] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5290] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5290] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5290] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5290] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5290] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5291 attached => {parent_tid=[5291]}, 88) = 5291 [pid 5291] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5291] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5290] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5291] <... futex resumed>) = 0 [pid 5290] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5291] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5291] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5290] <... futex resumed>) = 0 [pid 5291] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5290] exit_group(0) = ? [pid 5291] <... futex resumed>) = ? [pid 5291] +++ exited with 0 +++ [pid 5290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5290, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18450", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18450", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18450/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18450/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18450/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18450") = 0 mkdir("./18451", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5292 ./strace-static-x86_64: Process 5292 attached [pid 5292] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5292] chdir("./18451") = 0 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5292] setpgid(0, 0) = 0 [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5292] write(3, "1000", 4) = 4 [pid 5292] close(3) = 0 [pid 5292] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5292] write(1, "executing program\n", 18executing program ) = 18 [pid 5292] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5292] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5292] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5292] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5292] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5292] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5293 attached => {parent_tid=[5293]}, 88) = 5293 [pid 5293] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5292] rt_sigprocmask(SIG_SETMASK, [], [pid 5293] <... set_robust_list resumed>) = 0 [pid 5293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5293] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5292] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5293] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5293] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5293] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5293] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5292] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5293] <... futex resumed>) = 0 [pid 5292] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5293] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5293] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5292] <... futex resumed>) = 0 [pid 5293] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5292] exit_group(0) = ? [pid 5293] <... futex resumed>) = ? [pid 5293] +++ exited with 0 +++ [pid 5292] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18451", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18451", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18451/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18451/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18451/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18451") = 0 mkdir("./18452", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5294 ./strace-static-x86_64: Process 5294 attached [pid 5294] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5294] chdir("./18452") = 0 [pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5294] setpgid(0, 0) = 0 [pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5294] write(3, "1000", 4) = 4 [pid 5294] close(3) = 0 [pid 5294] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5294] write(1, "executing program\n", 18executing program ) = 18 [pid 5294] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5294] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5294] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5294] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5294] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5295 attached => {parent_tid=[5295]}, 88) = 5295 [pid 5295] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5294] rt_sigprocmask(SIG_SETMASK, [], [pid 5295] <... set_robust_list resumed>) = 0 [pid 5294] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5295] rt_sigprocmask(SIG_SETMASK, [], [pid 5294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5294] <... futex resumed>) = 0 [pid 5294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... futex resumed>) = 0 [pid 5295] <... futex resumed>) = 1 [pid 5294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5294] <... futex resumed>) = 0 [pid 5294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... futex resumed>) = 0 [pid 5295] <... futex resumed>) = 1 [pid 5294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5295] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5294] <... futex resumed>) = 0 [pid 5294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... futex resumed>) = 0 [pid 5295] <... futex resumed>) = 1 [pid 5294] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5294] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5295] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5295] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5294] <... futex resumed>) = 0 [pid 5294] exit_group(0) = ? [pid 5295] <... futex resumed>) = ? [pid 5295] +++ exited with 0 +++ [pid 5294] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18452", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18452", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18452/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18452/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18452/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18452") = 0 mkdir("./18453", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5296 ./strace-static-x86_64: Process 5296 attached [pid 5296] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5296] chdir("./18453") = 0 [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5296] setpgid(0, 0) = 0 [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5296] write(3, "1000", 4) = 4 [pid 5296] close(3) = 0 [pid 5296] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5296] write(1, "executing program\n", 18executing program ) = 18 [pid 5296] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5296] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5296] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5297 attached => {parent_tid=[5297]}, 88) = 5297 [pid 5297] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5296] rt_sigprocmask(SIG_SETMASK, [], [pid 5297] <... set_robust_list resumed>) = 0 [pid 5296] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5297] rt_sigprocmask(SIG_SETMASK, [], [pid 5296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 1 [pid 5296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 1 [pid 5296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5296] <... futex resumed>) = 0 [pid 5297] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5296] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5296] <... futex resumed>) = 0 [pid 5296] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5297] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5297] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5296] <... futex resumed>) = 0 [pid 5297] <... futex resumed>) = 1 [pid 5296] exit_group(0 [pid 5297] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5296] <... exit_group resumed>) = ? [pid 5297] <... futex resumed>) = -1 (errno 18446744073709551414) [pid 5297] +++ exited with 0 +++ [pid 5296] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18453", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18453", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18453/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18453/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18453/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18453") = 0 mkdir("./18454", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5298 ./strace-static-x86_64: Process 5298 attached [pid 5298] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5298] chdir("./18454") = 0 [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5298] setpgid(0, 0) = 0 [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5298] write(3, "1000", 4) = 4 [pid 5298] close(3) = 0 [pid 5298] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5298] write(1, "executing program\n", 18executing program ) = 18 [pid 5298] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5298] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5298] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5299 attached => {parent_tid=[5299]}, 88) = 5299 [pid 5299] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5299] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5299] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5299] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5299] <... futex resumed>) = 0 [pid 5298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5298] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5298] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5299] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5299] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5298] <... futex resumed>) = 0 [pid 5298] exit_group(0) = ? [pid 5299] +++ exited with 0 +++ [pid 5298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18454", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18454", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18454/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18454/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18454/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18454") = 0 mkdir("./18455", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5300 ./strace-static-x86_64: Process 5300 attached [pid 5300] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5300] chdir("./18455") = 0 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5300] setpgid(0, 0) = 0 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5300] write(3, "1000", 4) = 4 [pid 5300] close(3) = 0 [pid 5300] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5300] write(1, "executing program\n", 18executing program ) = 18 [pid 5300] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5300] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5300] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5300] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5300] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5300] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5301 attached [pid 5301] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] <... clone3 resumed> => {parent_tid=[5301]}, 88) = 5301 [pid 5300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5301] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5301] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5301] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5301] <... futex resumed>) = 0 [pid 5301] write(-1, "0x0000000000000001", 18 [pid 5300] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5301] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5301] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5301] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5300] exit_group(0) = ? [pid 5301] <... futex resumed>) = ? [pid 5301] +++ exited with 0 +++ [pid 5300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18455", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18455", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18455/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18455/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18455/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18455") = 0 mkdir("./18456", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5302 ./strace-static-x86_64: Process 5302 attached [pid 5302] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5302] chdir("./18456") = 0 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5302] setpgid(0, 0) = 0 [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5302] write(3, "1000", 4) = 4 [pid 5302] close(3) = 0 [pid 5302] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5302] write(1, "executing program\n", 18executing program ) = 18 [pid 5302] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5302] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5302] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5302] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5303 attached => {parent_tid=[5303]}, 88) = 5303 [pid 5303] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5302] rt_sigprocmask(SIG_SETMASK, [], [pid 5303] <... set_robust_list resumed>) = 0 [pid 5302] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5303] rt_sigprocmask(SIG_SETMASK, [], [pid 5302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5303] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5302] <... futex resumed>) = 0 [pid 5302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] <... futex resumed>) = 1 [pid 5303] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5303] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5302] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5303] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5303] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5302] <... futex resumed>) = 0 [pid 5303] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5302] exit_group(0) = ? [pid 5303] <... futex resumed>) = ? [pid 5303] +++ exited with 0 +++ [pid 5302] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18456", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18456", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18456/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18456/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18456/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18456") = 0 mkdir("./18457", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5304 ./strace-static-x86_64: Process 5304 attached [pid 5304] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5304] chdir("./18457") = 0 [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5304] setpgid(0, 0) = 0 [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5304] write(3, "1000", 4) = 4 [pid 5304] close(3) = 0 [pid 5304] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5304] write(1, "executing program\n", 18) = 18 [pid 5304] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5304] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5304] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5304] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5304] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5305 attached => {parent_tid=[5305]}, 88) = 5305 [pid 5305] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5304] rt_sigprocmask(SIG_SETMASK, [], [pid 5305] <... set_robust_list resumed>) = 0 [pid 5305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5305] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5305] <... futex resumed>) = 0 [pid 5305] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5305] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5305] <... futex resumed>) = 0 [pid 5304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5305] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5305] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5305] <... futex resumed>) = 0 [pid 5304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5305] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5305] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] <... futex resumed>) = 0 [pid 5304] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5305] <... futex resumed>) = 0 [pid 5304] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5305] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5305] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5304] <... futex resumed>) = 0 [pid 5305] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5304] exit_group(0) = ? [pid 5305] <... futex resumed>) = ? [pid 5305] +++ exited with 0 +++ [pid 5304] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18457", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18457", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18457/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18457/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18457/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18457") = 0 mkdir("./18458", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5306 ./strace-static-x86_64: Process 5306 attached [pid 5306] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5306] chdir("./18458") = 0 [pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5306] setpgid(0, 0) = 0 [pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5306] write(3, "1000", 4) = 4 [pid 5306] close(3) = 0 [pid 5306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5306] write(1, "executing program\n", 18executing program ) = 18 [pid 5306] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5306] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5306] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5307 attached => {parent_tid=[5307]}, 88) = 5307 [pid 5307] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5307] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 [pid 5306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5307] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5307] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5307] <... futex resumed>) = 0 [pid 5307] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor) [pid 5307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5306] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5307] <... futex resumed>) = 0 [pid 5306] <... futex resumed>) = 1 [pid 5306] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5307] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5307] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5306] <... futex resumed>) = 0 [pid 5307] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5306] exit_group(0) = ? [pid 5307] <... futex resumed>) = ? [pid 5307] +++ exited with 0 +++ [pid 5306] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18458", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18458", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18458/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18458/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18458/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18458") = 0 mkdir("./18459", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5308 ./strace-static-x86_64: Process 5308 attached [pid 5308] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5308] chdir("./18459") = 0 [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5308] setpgid(0, 0) = 0 [pid 5308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5308] write(3, "1000", 4) = 4 [pid 5308] close(3) = 0 [pid 5308] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5308] write(1, "executing program\n", 18) = 18 [pid 5308] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5308] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5308] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5308] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5308] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5309 attached => {parent_tid=[5309]}, 88) = 5309 [pid 5309] set_robust_list(0x7f0a3d8de9a0, 24) = 0 [pid 5309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5309] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 5308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5309] <... futex resumed>) = 0 [pid 5308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5309] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory) [pid 5309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5308] <... futex resumed>) = 0 [pid 5309] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5309] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5309] <... futex resumed>) = 0 [pid 5308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5308] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5308] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5309] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor) [pid 5309] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5308] <... futex resumed>) = 0 [pid 5309] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5308] exit_group(0) = ? [pid 5309] <... futex resumed>) = ? [pid 5309] +++ exited with 0 +++ [pid 5308] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18459", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18459", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558931c730 /* 3 entries */, 32768) = 80 umount2("./18459/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18459/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18459/binderfs") = 0 getdents64(3, 0x55558931c730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18459") = 0 mkdir("./18460", 0777) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558931b690) = 5310 ./strace-static-x86_64: Process 5310 attached [pid 5310] set_robust_list(0x55558931b6a0, 24) = 0 [pid 5310] chdir("./18460") = 0 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5310] setpgid(0, 0) = 0 [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5310] write(3, "1000", 4) = 4 [pid 5310] close(3) = 0 [pid 5310] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5310] write(1, "executing program\n", 18executing program ) = 18 [pid 5310] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5310] rt_sigaction(SIGRT_1, {sa_handler=0x7f0a3d943fc0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f0a3d935140}, NULL, 8) = 0 [pid 5310] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0a3d8be000 [pid 5310] mprotect(0x7f0a3d8bf000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5310] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5310] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f0a3d8de990, parent_tid=0x7f0a3d8de990, exit_signal=0, stack=0x7f0a3d8be000, stack_size=0x20300, tls=0x7f0a3d8de6c0}./strace-static-x86_64: Process 5311 attached => {parent_tid=[5311]}, 88) = 5311 [pid 5311] set_robust_list(0x7f0a3d8de9a0, 24 [pid 5310] rt_sigprocmask(SIG_SETMASK, [], [pid 5311] <... set_robust_list resumed>) = 0 [pid 5310] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5311] rt_sigprocmask(SIG_SETMASK, [], [pid 5310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5310] <... futex resumed>) = 0 [pid 5310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5311] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory) [pid 5311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... futex resumed>) = 0 [pid 5311] <... futex resumed>) = 1 [pid 5310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH [pid 5310] <... futex resumed>) = 0 [pid 5310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5311] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... futex resumed>) = 0 [pid 5311] <... futex resumed>) = 1 [pid 5310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5310] <... futex resumed>) = 0 [pid 5311] <... openat resumed>) = -1 EBADF (Bad file descriptor) [pid 5310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5311] <... futex resumed>) = 0 [pid 5310] futex(0x7f0a3d9a83e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5311] write(-1, "0x0000000000000001", 18 [pid 5310] <... futex resumed>) = 0 [pid 5311] <... write resumed>) = -1 EBADF (Bad file descriptor) [pid 5310] futex(0x7f0a3d9a83ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5311] futex(0x7f0a3d9a83ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 5310] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5311] <... futex resumed>) = 0 [pid 5310] exit_group(0 [pid 5311] futex(0x7f0a3d9a83e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5310] <... exit_group resumed>) = ? [pid 5311] <... futex resumed>) = ? [pid 5311] +++ exited with 0 +++ [pid 5310] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0