./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor845661366

<...>
t_group(0)               = ?
[pid 22091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22091, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21522", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21522", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21522/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21522/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21522/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21522")                        = 0
mkdir("./21523", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22092
./strace-static-x86_64: Process 22092 attached
[pid 22092] set_robust_list(0x55557a32b660, 24) = 0
[pid 22092] chdir("./21523")            = 0
[pid 22092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22092] setpgid(0, 0)               = 0
[pid 22092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22092] write(3, "1000", 4)         = 4
[pid 22092] close(3)                    = 0
[pid 22092] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22092] write(1, "executing program\n", 18executing program
) = 18
[pid 22092] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22092] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22092] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22092] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22092] exit_group(0)               = ?
[pid 22092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22092, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21523", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21523", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21523/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21523/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21523/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21523")                        = 0
mkdir("./21524", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22093
./strace-static-x86_64: Process 22093 attached
[pid 22093] set_robust_list(0x55557a32b660, 24) = 0
[pid 22093] chdir("./21524")            = 0
[pid 22093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22093] setpgid(0, 0)               = 0
[pid 22093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22093] write(3, "1000", 4)         = 4
[pid 22093] close(3)                    = 0
[pid 22093] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22093] write(1, "executing program\n", 18executing program
) = 18
[pid 22093] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22093] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22093] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22093] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22093] exit_group(0)               = ?
[pid 22093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22093, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21524", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21524", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21524/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21524/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21524/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21524")                        = 0
mkdir("./21525", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22094
./strace-static-x86_64: Process 22094 attached
[pid 22094] set_robust_list(0x55557a32b660, 24) = 0
[pid 22094] chdir("./21525")            = 0
[pid 22094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22094] setpgid(0, 0)               = 0
[pid 22094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22094] write(3, "1000", 4)         = 4
[pid 22094] close(3)                    = 0
[pid 22094] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22094] write(1, "executing program\n", 18executing program
) = 18
[pid 22094] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22094] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22094] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22094] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22094] exit_group(0)               = ?
[pid 22094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22094, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21525", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21525", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21525/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21525/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21525/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21525")                        = 0
mkdir("./21526", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22095 attached
, child_tidptr=0x55557a32b650) = 22095
[pid 22095] set_robust_list(0x55557a32b660, 24) = 0
[pid 22095] chdir("./21526")            = 0
[pid 22095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22095] setpgid(0, 0)               = 0
[pid 22095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22095] write(3, "1000", 4)         = 4
[pid 22095] close(3)                    = 0
[pid 22095] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22095] write(1, "executing program\n", 18executing program
) = 18
[pid 22095] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22095] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22095] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22095] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22095] exit_group(0)               = ?
[pid 22095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22095, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21526", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21526", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21526/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21526/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21526/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21526")                        = 0
mkdir("./21527", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22096
./strace-static-x86_64: Process 22096 attached
[pid 22096] set_robust_list(0x55557a32b660, 24) = 0
[pid 22096] chdir("./21527")            = 0
[pid 22096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22096] setpgid(0, 0)               = 0
[pid 22096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22096] write(3, "1000", 4)         = 4
[pid 22096] close(3)                    = 0
[pid 22096] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22096] write(1, "executing program\n", 18executing program
) = 18
[pid 22096] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22096] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22096] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22096] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22096] exit_group(0)               = ?
[pid 22096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21527", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21527", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21527/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21527/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21527/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21527")                        = 0
mkdir("./21528", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22097
./strace-static-x86_64: Process 22097 attached
[pid 22097] set_robust_list(0x55557a32b660, 24) = 0
[pid 22097] chdir("./21528")            = 0
[pid 22097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22097] setpgid(0, 0)               = 0
[pid 22097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22097] write(3, "1000", 4)         = 4
[pid 22097] close(3)                    = 0
[pid 22097] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22097] write(1, "executing program\n", 18) = 18
[pid 22097] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22097] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22097] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22097] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22097] exit_group(0)               = ?
[pid 22097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22097, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21528", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21528", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21528/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21528/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21528/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21528")                        = 0
mkdir("./21529", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22098
./strace-static-x86_64: Process 22098 attached
[pid 22098] set_robust_list(0x55557a32b660, 24) = 0
[pid 22098] chdir("./21529")            = 0
[pid 22098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22098] setpgid(0, 0)               = 0
[pid 22098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22098] write(3, "1000", 4)         = 4
[pid 22098] close(3)                    = 0
[pid 22098] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22098] write(1, "executing program\n", 18) = 18
[pid 22098] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22098] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22098] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22098] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22098] exit_group(0)               = ?
[pid 22098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22098, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21529", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21529", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21529/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21529/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21529/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21529")                        = 0
mkdir("./21530", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22099 attached
, child_tidptr=0x55557a32b650) = 22099
[pid 22099] set_robust_list(0x55557a32b660, 24) = 0
[pid 22099] chdir("./21530")            = 0
[pid 22099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22099] setpgid(0, 0)               = 0
[pid 22099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22099] write(3, "1000", 4)         = 4
[pid 22099] close(3)                    = 0
[pid 22099] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22099] write(1, "executing program\n", 18) = 18
[pid 22099] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22099] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22099] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22099] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22099] exit_group(0)               = ?
[pid 22099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22099, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21530", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21530", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21530/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21530/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21530/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21530")                        = 0
mkdir("./21531", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22100
./strace-static-x86_64: Process 22100 attached
[pid 22100] set_robust_list(0x55557a32b660, 24) = 0
[pid 22100] chdir("./21531")            = 0
[pid 22100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22100] setpgid(0, 0)               = 0
[pid 22100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22100] write(3, "1000", 4)         = 4
[pid 22100] close(3)                    = 0
[pid 22100] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22100] write(1, "executing program\n", 18) = 18
[pid 22100] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22100] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22100] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22100] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22100] exit_group(0)               = ?
[pid 22100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22100, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21531", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21531", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21531/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21531/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21531/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21531")                        = 0
mkdir("./21532", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22101
./strace-static-x86_64: Process 22101 attached
[pid 22101] set_robust_list(0x55557a32b660, 24) = 0
[pid 22101] chdir("./21532")            = 0
[pid 22101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22101] setpgid(0, 0)               = 0
[pid 22101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22101] write(3, "1000", 4)         = 4
[pid 22101] close(3)                    = 0
[pid 22101] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22101] write(1, "executing program\n", 18executing program
) = 18
[pid 22101] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22101] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22101] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22101] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22101] exit_group(0)               = ?
[pid 22101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22101, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21532", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21532", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21532/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21532/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21532/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21532")                        = 0
mkdir("./21533", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22102 attached
, child_tidptr=0x55557a32b650) = 22102
[pid 22102] set_robust_list(0x55557a32b660, 24) = 0
[pid 22102] chdir("./21533")            = 0
[pid 22102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22102] setpgid(0, 0)               = 0
[pid 22102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22102] write(3, "1000", 4)         = 4
[pid 22102] close(3)                    = 0
[pid 22102] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22102] write(1, "executing program\n", 18executing program
) = 18
[pid 22102] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22102] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22102] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22102] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22102] exit_group(0)               = ?
[pid 22102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22102, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21533", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21533", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21533/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21533/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21533/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21533")                        = 0
mkdir("./21534", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22103 attached
, child_tidptr=0x55557a32b650) = 22103
[pid 22103] set_robust_list(0x55557a32b660, 24) = 0
[pid 22103] chdir("./21534")            = 0
[pid 22103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22103] setpgid(0, 0)               = 0
[pid 22103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22103] write(3, "1000", 4)         = 4
[pid 22103] close(3)                    = 0
[pid 22103] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22103] write(1, "executing program\n", 18executing program
) = 18
[pid 22103] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22103] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22103] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22103] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22103] exit_group(0)               = ?
[pid 22103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22103, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21534", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21534", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21534/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21534/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21534/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21534")                        = 0
mkdir("./21535", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22104
./strace-static-x86_64: Process 22104 attached
[pid 22104] set_robust_list(0x55557a32b660, 24) = 0
[pid 22104] chdir("./21535")            = 0
[pid 22104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22104] setpgid(0, 0)               = 0
[pid 22104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22104] write(3, "1000", 4)         = 4
[pid 22104] close(3)                    = 0
[pid 22104] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22104] write(1, "executing program\n", 18) = 18
[pid 22104] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22104] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22104] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22104] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22104] exit_group(0)               = ?
[pid 22104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22104, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21535", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21535", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21535/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21535/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21535/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21535")                        = 0
mkdir("./21536", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22105 attached
, child_tidptr=0x55557a32b650) = 22105
[pid 22105] set_robust_list(0x55557a32b660, 24) = 0
[pid 22105] chdir("./21536")            = 0
[pid 22105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22105] setpgid(0, 0)               = 0
[pid 22105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22105] write(3, "1000", 4)         = 4
[pid 22105] close(3)                    = 0
[pid 22105] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22105] write(1, "executing program\n", 18executing program
) = 18
[pid 22105] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22105] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22105] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22105] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22105] exit_group(0)               = ?
[pid 22105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22105, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21536", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21536", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21536/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21536/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21536/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21536")                        = 0
mkdir("./21537", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22106
./strace-static-x86_64: Process 22106 attached
[pid 22106] set_robust_list(0x55557a32b660, 24) = 0
[pid 22106] chdir("./21537")            = 0
[pid 22106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22106] setpgid(0, 0)               = 0
[pid 22106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22106] write(3, "1000", 4)         = 4
[pid 22106] close(3)                    = 0
[pid 22106] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22106] write(1, "executing program\n", 18executing program
) = 18
[pid 22106] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22106] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22106] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22106] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22106] exit_group(0)               = ?
[pid 22106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22106, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21537", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21537", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21537/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21537/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21537/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21537")                        = 0
mkdir("./21538", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22107 attached
 <unfinished ...>
[pid 22107] set_robust_list(0x55557a32b660, 24) = 0
[pid 22107] chdir("./21538" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22107
[pid 22107] <... chdir resumed>)        = 0
[pid 22107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22107] setpgid(0, 0)               = 0
[pid 22107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22107] write(3, "1000", 4)         = 4
[pid 22107] close(3)                    = 0
[pid 22107] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22107] write(1, "executing program\n", 18executing program
) = 18
[pid 22107] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22107] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22107] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22107] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22107] exit_group(0)               = ?
[pid 22107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22107, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21538", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21538", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21538/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21538/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21538/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21538")                        = 0
mkdir("./21539", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22108 attached
, child_tidptr=0x55557a32b650) = 22108
[pid 22108] set_robust_list(0x55557a32b660, 24) = 0
[pid 22108] chdir("./21539")            = 0
[pid 22108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22108] setpgid(0, 0)               = 0
[pid 22108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22108] write(3, "1000", 4)         = 4
[pid 22108] close(3)                    = 0
[pid 22108] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22108] write(1, "executing program\n", 18executing program
) = 18
[pid 22108] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22108] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22108] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22108] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22108] exit_group(0)               = ?
[pid 22108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22108, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21539", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21539", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21539/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21539/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21539/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21539")                        = 0
mkdir("./21540", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22109
./strace-static-x86_64: Process 22109 attached
[pid 22109] set_robust_list(0x55557a32b660, 24) = 0
[pid 22109] chdir("./21540")            = 0
[pid 22109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22109] setpgid(0, 0)               = 0
[pid 22109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22109] write(3, "1000", 4)         = 4
[pid 22109] close(3)                    = 0
[pid 22109] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22109] write(1, "executing program\n", 18) = 18
[pid 22109] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22109] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22109] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22109] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22109] exit_group(0)               = ?
[pid 22109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22109, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21540", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21540", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21540/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21540/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21540/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21540")                        = 0
mkdir("./21541", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22110
./strace-static-x86_64: Process 22110 attached
[pid 22110] set_robust_list(0x55557a32b660, 24) = 0
[pid 22110] chdir("./21541")            = 0
[pid 22110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22110] setpgid(0, 0)               = 0
[pid 22110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22110] write(3, "1000", 4)         = 4
[pid 22110] close(3)                    = 0
[pid 22110] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22110] write(1, "executing program\n", 18) = 18
[pid 22110] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22110] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22110] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22110] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22110] exit_group(0)               = ?
[pid 22110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22110, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21541", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21541", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21541/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21541/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21541/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21541")                        = 0
mkdir("./21542", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22111
./strace-static-x86_64: Process 22111 attached
[pid 22111] set_robust_list(0x55557a32b660, 24) = 0
[pid 22111] chdir("./21542")            = 0
[pid 22111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22111] setpgid(0, 0)               = 0
[pid 22111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22111] write(3, "1000", 4)         = 4
[pid 22111] close(3)                    = 0
[pid 22111] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22111] write(1, "executing program\n", 18executing program
) = 18
[pid 22111] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22111] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22111] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22111] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22111] exit_group(0)               = ?
[pid 22111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22111, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21542", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21542", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21542/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21542/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21542/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21542")                        = 0
mkdir("./21543", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22112 attached
, child_tidptr=0x55557a32b650) = 22112
[pid 22112] set_robust_list(0x55557a32b660, 24) = 0
[pid 22112] chdir("./21543")            = 0
[pid 22112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22112] setpgid(0, 0)               = 0
[pid 22112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22112] write(3, "1000", 4)         = 4
[pid 22112] close(3)                    = 0
[pid 22112] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22112] write(1, "executing program\n", 18executing program
) = 18
[pid 22112] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22112] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22112] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22112] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22112] exit_group(0)               = ?
[pid 22112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22112, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21543", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21543", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21543/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21543/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21543/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21543")                        = 0
mkdir("./21544", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22113
./strace-static-x86_64: Process 22113 attached
[pid 22113] set_robust_list(0x55557a32b660, 24) = 0
[pid 22113] chdir("./21544")            = 0
[pid 22113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22113] setpgid(0, 0)               = 0
[pid 22113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22113] write(3, "1000", 4)         = 4
[pid 22113] close(3)                    = 0
[pid 22113] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22113] write(1, "executing program\n", 18executing program
) = 18
[pid 22113] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22113] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22113] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22113] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22113] exit_group(0)               = ?
[pid 22113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22113, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21544", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21544", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21544/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21544/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21544/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21544")                        = 0
mkdir("./21545", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22114
./strace-static-x86_64: Process 22114 attached
[pid 22114] set_robust_list(0x55557a32b660, 24) = 0
[pid 22114] chdir("./21545")            = 0
[pid 22114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22114] setpgid(0, 0)               = 0
[pid 22114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22114] write(3, "1000", 4)         = 4
[pid 22114] close(3)                    = 0
[pid 22114] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22114] write(1, "executing program\n", 18) = 18
[pid 22114] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22114] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22114] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22114] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22114] exit_group(0)               = ?
[pid 22114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22114, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21545", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21545", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21545/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21545/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21545/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21545")                        = 0
mkdir("./21546", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22115
./strace-static-x86_64: Process 22115 attached
[pid 22115] set_robust_list(0x55557a32b660, 24) = 0
[pid 22115] chdir("./21546")            = 0
[pid 22115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22115] setpgid(0, 0)               = 0
[pid 22115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22115] write(3, "1000", 4)         = 4
[pid 22115] close(3)                    = 0
[pid 22115] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22115] write(1, "executing program\n", 18executing program
) = 18
[pid 22115] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22115] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22115] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22115] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22115] exit_group(0)               = ?
[pid 22115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22115, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21546", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21546", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21546/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21546/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21546/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21546")                        = 0
mkdir("./21547", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22116
./strace-static-x86_64: Process 22116 attached
[pid 22116] set_robust_list(0x55557a32b660, 24) = 0
[pid 22116] chdir("./21547")            = 0
[pid 22116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22116] setpgid(0, 0)               = 0
[pid 22116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22116] write(3, "1000", 4)         = 4
[pid 22116] close(3)                    = 0
[pid 22116] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22116] write(1, "executing program\n", 18executing program
) = 18
[pid 22116] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22116] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22116] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22116] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22116] exit_group(0)               = ?
[pid 22116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22116, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21547", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21547", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21547/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21547/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21547/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21547")                        = 0
mkdir("./21548", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22117 attached
, child_tidptr=0x55557a32b650) = 22117
[pid 22117] set_robust_list(0x55557a32b660, 24) = 0
[pid 22117] chdir("./21548")            = 0
[pid 22117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22117] setpgid(0, 0)               = 0
[pid 22117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22117] write(3, "1000", 4)         = 4
[pid 22117] close(3)                    = 0
[pid 22117] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22117] write(1, "executing program\n", 18executing program
) = 18
[pid 22117] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22117] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22117] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22117] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22117] exit_group(0)               = ?
[pid 22117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22117, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21548", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21548", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21548/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21548/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21548/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21548")                        = 0
mkdir("./21549", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22118 attached
, child_tidptr=0x55557a32b650) = 22118
[pid 22118] set_robust_list(0x55557a32b660, 24) = 0
[pid 22118] chdir("./21549")            = 0
[pid 22118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22118] setpgid(0, 0)               = 0
[pid 22118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22118] write(3, "1000", 4)         = 4
[pid 22118] close(3)                    = 0
[pid 22118] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22118] write(1, "executing program\n", 18executing program
) = 18
[pid 22118] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22118] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22118] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22118] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22118] exit_group(0)               = ?
[pid 22118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22118, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21549", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21549", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21549/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21549/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21549/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21549")                        = 0
mkdir("./21550", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22119
./strace-static-x86_64: Process 22119 attached
[pid 22119] set_robust_list(0x55557a32b660, 24) = 0
[pid 22119] chdir("./21550")            = 0
[pid 22119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22119] setpgid(0, 0)               = 0
[pid 22119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22119] write(3, "1000", 4)         = 4
[pid 22119] close(3)                    = 0
[pid 22119] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22119] write(1, "executing program\n", 18) = 18
[pid 22119] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22119] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22119] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22119] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22119] exit_group(0)               = ?
[pid 22119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22119, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21550", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21550", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21550/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21550/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21550/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21550")                        = 0
mkdir("./21551", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22120 attached
, child_tidptr=0x55557a32b650) = 22120
[pid 22120] set_robust_list(0x55557a32b660, 24) = 0
[pid 22120] chdir("./21551")            = 0
[pid 22120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22120] setpgid(0, 0)               = 0
[pid 22120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22120] write(3, "1000", 4)         = 4
[pid 22120] close(3)                    = 0
[pid 22120] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22120] write(1, "executing program\n", 18executing program
) = 18
[pid 22120] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22120] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22120] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22120] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22120] exit_group(0)               = ?
[pid 22120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22120, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21551", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21551", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21551/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21551/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21551/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21551")                        = 0
mkdir("./21552", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22122 attached
, child_tidptr=0x55557a32b650) = 22122
[pid 22122] set_robust_list(0x55557a32b660, 24) = 0
[pid 22122] chdir("./21552")            = 0
[pid 22122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22122] setpgid(0, 0)               = 0
[pid 22122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22122] write(3, "1000", 4)         = 4
[pid 22122] close(3)                    = 0
[pid 22122] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22122] write(1, "executing program\n", 18executing program
) = 18
[pid 22122] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22122] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22122] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22122] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22122] exit_group(0)               = ?
[pid 22122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22122, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21552", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21552", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21552/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21552/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21552/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21552")                        = 0
mkdir("./21553", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22123
./strace-static-x86_64: Process 22123 attached
[pid 22123] set_robust_list(0x55557a32b660, 24) = 0
[pid 22123] chdir("./21553")            = 0
[pid 22123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22123] setpgid(0, 0)               = 0
[pid 22123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22123] write(3, "1000", 4)         = 4
[pid 22123] close(3)                    = 0
[pid 22123] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22123] write(1, "executing program\n", 18executing program
) = 18
[pid 22123] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22123] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22123] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22123] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22123] exit_group(0)               = ?
[pid 22123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22123, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21553", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21553", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21553/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21553/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21553/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21553")                        = 0
mkdir("./21554", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22124
./strace-static-x86_64: Process 22124 attached
[pid 22124] set_robust_list(0x55557a32b660, 24) = 0
[pid 22124] chdir("./21554")            = 0
[pid 22124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22124] setpgid(0, 0)               = 0
[pid 22124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22124] write(3, "1000", 4)         = 4
[pid 22124] close(3)                    = 0
[pid 22124] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22124] write(1, "executing program\n", 18) = 18
[pid 22124] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22124] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22124] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22124] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22124] exit_group(0)               = ?
[pid 22124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22124, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21554", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21554", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21554/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21554/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21554/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21554")                        = 0
mkdir("./21555", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22125 attached
, child_tidptr=0x55557a32b650) = 22125
[pid 22125] set_robust_list(0x55557a32b660, 24) = 0
[pid 22125] chdir("./21555")            = 0
[pid 22125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22125] setpgid(0, 0)               = 0
[pid 22125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22125] write(3, "1000", 4)         = 4
[pid 22125] close(3)                    = 0
[pid 22125] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22125] write(1, "executing program\n", 18executing program
) = 18
[pid 22125] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22125] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22125] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22125] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22125] exit_group(0)               = ?
[pid 22125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22125, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21555", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21555", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21555/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21555/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21555/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21555")                        = 0
mkdir("./21556", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22126
./strace-static-x86_64: Process 22126 attached
[pid 22126] set_robust_list(0x55557a32b660, 24) = 0
[pid 22126] chdir("./21556")            = 0
[pid 22126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22126] setpgid(0, 0)               = 0
[pid 22126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22126] write(3, "1000", 4)         = 4
[pid 22126] close(3)                    = 0
[pid 22126] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22126] write(1, "executing program\n", 18executing program
) = 18
[pid 22126] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22126] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22126] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22126] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22126] exit_group(0)               = ?
[pid 22126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22126, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21556", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21556", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21556/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21556/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21556/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21556")                        = 0
mkdir("./21557", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22127 attached
, child_tidptr=0x55557a32b650) = 22127
[pid 22127] set_robust_list(0x55557a32b660, 24) = 0
[pid 22127] chdir("./21557")            = 0
[pid 22127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22127] setpgid(0, 0)               = 0
[pid 22127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22127] write(3, "1000", 4)         = 4
[pid 22127] close(3)                    = 0
[pid 22127] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22127] write(1, "executing program\n", 18executing program
) = 18
[pid 22127] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22127] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22127] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22127] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22127] exit_group(0)               = ?
[pid 22127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22127, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21557", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21557", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21557/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21557/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21557/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21557")                        = 0
mkdir("./21558", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22128 attached
, child_tidptr=0x55557a32b650) = 22128
[pid 22128] set_robust_list(0x55557a32b660, 24) = 0
[pid 22128] chdir("./21558")            = 0
[pid 22128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22128] setpgid(0, 0)               = 0
[pid 22128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22128] write(3, "1000", 4)         = 4
[pid 22128] close(3)                    = 0
[pid 22128] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22128] write(1, "executing program\n", 18) = 18
[pid 22128] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22128] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22128] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22128] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22128] exit_group(0)               = ?
[pid 22128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22128, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21558", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21558", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21558/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21558/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21558/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21558")                        = 0
mkdir("./21559", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22129
./strace-static-x86_64: Process 22129 attached
[pid 22129] set_robust_list(0x55557a32b660, 24) = 0
[pid 22129] chdir("./21559")            = 0
[pid 22129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22129] setpgid(0, 0)               = 0
[pid 22129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22129] write(3, "1000", 4)         = 4
[pid 22129] close(3)                    = 0
[pid 22129] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22129] write(1, "executing program\n", 18executing program
) = 18
[pid 22129] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22129] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22129] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22129] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22129] exit_group(0)               = ?
[pid 22129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22129, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21559", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21559", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21559/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21559/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21559/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21559")                        = 0
mkdir("./21560", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22130
./strace-static-x86_64: Process 22130 attached
[pid 22130] set_robust_list(0x55557a32b660, 24) = 0
[pid 22130] chdir("./21560")            = 0
[pid 22130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22130] setpgid(0, 0)               = 0
[pid 22130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22130] write(3, "1000", 4)         = 4
[pid 22130] close(3)                    = 0
[pid 22130] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22130] write(1, "executing program\n", 18executing program
) = 18
[pid 22130] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22130] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22130] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22130] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22130] exit_group(0)               = ?
[pid 22130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21560", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21560", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21560/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21560/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21560/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21560")                        = 0
mkdir("./21561", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22131 attached
, child_tidptr=0x55557a32b650) = 22131
[pid 22131] set_robust_list(0x55557a32b660, 24) = 0
[pid 22131] chdir("./21561")            = 0
[pid 22131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22131] setpgid(0, 0)               = 0
[pid 22131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22131] write(3, "1000", 4)         = 4
[pid 22131] close(3)                    = 0
[pid 22131] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22131] write(1, "executing program\n", 18executing program
) = 18
[pid 22131] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22131] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22131] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22131] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22131] exit_group(0)               = ?
[pid 22131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22131, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21561", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21561", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21561/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21561/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21561/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21561")                        = 0
mkdir("./21562", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22132 attached
, child_tidptr=0x55557a32b650) = 22132
[pid 22132] set_robust_list(0x55557a32b660, 24) = 0
[pid 22132] chdir("./21562")            = 0
[pid 22132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22132] setpgid(0, 0)               = 0
[pid 22132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22132] write(3, "1000", 4)         = 4
[pid 22132] close(3)                    = 0
[pid 22132] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22132] write(1, "executing program\n", 18executing program
) = 18
[pid 22132] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22132] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22132] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22132] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22132] exit_group(0)               = ?
[pid 22132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22132, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21562", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21562", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21562/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21562/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21562/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21562")                        = 0
mkdir("./21563", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22133
./strace-static-x86_64: Process 22133 attached
[pid 22133] set_robust_list(0x55557a32b660, 24) = 0
[pid 22133] chdir("./21563")            = 0
[pid 22133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22133] setpgid(0, 0)               = 0
[pid 22133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22133] write(3, "1000", 4)         = 4
[pid 22133] close(3)                    = 0
[pid 22133] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22133] write(1, "executing program\n", 18executing program
) = 18
[pid 22133] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22133] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22133] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22133] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22133] exit_group(0)               = ?
[pid 22133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22133, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21563", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21563", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21563/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21563/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21563/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21563")                        = 0
mkdir("./21564", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22134
./strace-static-x86_64: Process 22134 attached
[pid 22134] set_robust_list(0x55557a32b660, 24) = 0
[pid 22134] chdir("./21564")            = 0
[pid 22134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22134] setpgid(0, 0)               = 0
[pid 22134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22134] write(3, "1000", 4)         = 4
[pid 22134] close(3)                    = 0
[pid 22134] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22134] write(1, "executing program\n", 18executing program
) = 18
[pid 22134] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22134] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22134] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22134] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22134] exit_group(0)               = ?
[pid 22134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21564", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21564", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21564/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21564/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21564/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21564")                        = 0
mkdir("./21565", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22135
./strace-static-x86_64: Process 22135 attached
[pid 22135] set_robust_list(0x55557a32b660, 24) = 0
[pid 22135] chdir("./21565")            = 0
[pid 22135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22135] setpgid(0, 0)               = 0
[pid 22135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22135] write(3, "1000", 4)         = 4
[pid 22135] close(3)                    = 0
[pid 22135] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22135] write(1, "executing program\n", 18executing program
) = 18
[pid 22135] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22135] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22135] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22135] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22135] exit_group(0)               = ?
[pid 22135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22135, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21565", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21565", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21565/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21565/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21565/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21565")                        = 0
mkdir("./21566", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22136 attached
, child_tidptr=0x55557a32b650) = 22136
[pid 22136] set_robust_list(0x55557a32b660, 24) = 0
[pid 22136] chdir("./21566")            = 0
[pid 22136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22136] setpgid(0, 0)               = 0
[pid 22136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22136] write(3, "1000", 4)         = 4
[pid 22136] close(3)                    = 0
[pid 22136] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22136] write(1, "executing program\n", 18executing program
) = 18
[pid 22136] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22136] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22136] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22136] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22136] exit_group(0)               = ?
[pid 22136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22136, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21566", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21566", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21566/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21566/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21566/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21566")                        = 0
mkdir("./21567", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22137
./strace-static-x86_64: Process 22137 attached
[pid 22137] set_robust_list(0x55557a32b660, 24) = 0
[pid 22137] chdir("./21567")            = 0
[pid 22137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22137] setpgid(0, 0)               = 0
[pid 22137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22137] write(3, "1000", 4)         = 4
[pid 22137] close(3)                    = 0
[pid 22137] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22137] write(1, "executing program\n", 18executing program
) = 18
[pid 22137] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22137] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22137] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22137] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22137] exit_group(0)               = ?
[pid 22137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22137, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21567", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21567", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21567/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21567/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21567/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21567")                        = 0
mkdir("./21568", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22138 attached
, child_tidptr=0x55557a32b650) = 22138
[pid 22138] set_robust_list(0x55557a32b660, 24) = 0
[pid 22138] chdir("./21568")            = 0
[pid 22138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22138] setpgid(0, 0)               = 0
[pid 22138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22138] write(3, "1000", 4)         = 4
[pid 22138] close(3)                    = 0
[pid 22138] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22138] write(1, "executing program\n", 18executing program
) = 18
[pid 22138] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22138] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22138] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22138] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22138] exit_group(0)               = ?
[pid 22138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21568", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21568", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21568/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21568/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21568/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21568")                        = 0
mkdir("./21569", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22139
./strace-static-x86_64: Process 22139 attached
[pid 22139] set_robust_list(0x55557a32b660, 24) = 0
[pid 22139] chdir("./21569")            = 0
[pid 22139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22139] setpgid(0, 0)               = 0
[pid 22139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22139] write(3, "1000", 4)         = 4
[pid 22139] close(3)                    = 0
[pid 22139] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22139] write(1, "executing program\n", 18executing program
) = 18
[pid 22139] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22139] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22139] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22139] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22139] exit_group(0)               = ?
[pid 22139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22139, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21569", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21569", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21569/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21569/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21569/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21569")                        = 0
mkdir("./21570", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22140
./strace-static-x86_64: Process 22140 attached
[pid 22140] set_robust_list(0x55557a32b660, 24) = 0
[pid 22140] chdir("./21570")            = 0
[pid 22140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22140] setpgid(0, 0)               = 0
[pid 22140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22140] write(3, "1000", 4)         = 4
[pid 22140] close(3)                    = 0
[pid 22140] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22140] write(1, "executing program\n", 18executing program
) = 18
[pid 22140] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22140] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22140] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22140] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22140] exit_group(0)               = ?
[pid 22140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21570", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21570", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21570/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21570/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21570/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21570")                        = 0
mkdir("./21571", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22141
./strace-static-x86_64: Process 22141 attached
[pid 22141] set_robust_list(0x55557a32b660, 24) = 0
[pid 22141] chdir("./21571")            = 0
[pid 22141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22141] setpgid(0, 0)               = 0
[pid 22141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22141] write(3, "1000", 4)         = 4
[pid 22141] close(3)                    = 0
[pid 22141] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22141] write(1, "executing program\n", 18) = 18
[pid 22141] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22141] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22141] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22141] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22141] exit_group(0)               = ?
[pid 22141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22141, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21571", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21571", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21571/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21571/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21571/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21571")                        = 0
mkdir("./21572", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22142 attached
, child_tidptr=0x55557a32b650) = 22142
[pid 22142] set_robust_list(0x55557a32b660, 24) = 0
[pid 22142] chdir("./21572")            = 0
[pid 22142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22142] setpgid(0, 0)               = 0
[pid 22142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22142] write(3, "1000", 4)         = 4
[pid 22142] close(3)                    = 0
[pid 22142] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22142] write(1, "executing program\n", 18executing program
) = 18
[pid 22142] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22142] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22142] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22142] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22142] exit_group(0)               = ?
[pid 22142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22142, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21572", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21572", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21572/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21572/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21572/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21572")                        = 0
mkdir("./21573", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22143 attached
, child_tidptr=0x55557a32b650) = 22143
[pid 22143] set_robust_list(0x55557a32b660, 24) = 0
[pid 22143] chdir("./21573")            = 0
[pid 22143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22143] setpgid(0, 0)               = 0
[pid 22143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22143] write(3, "1000", 4)         = 4
[pid 22143] close(3)                    = 0
[pid 22143] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22143] write(1, "executing program\n", 18executing program
) = 18
[pid 22143] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22143] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22143] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22143] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22143] exit_group(0)               = ?
[pid 22143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22143, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21573", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21573", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21573/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21573/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21573/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21573")                        = 0
mkdir("./21574", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22144 attached
, child_tidptr=0x55557a32b650) = 22144
[pid 22144] set_robust_list(0x55557a32b660, 24) = 0
[pid 22144] chdir("./21574")            = 0
[pid 22144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22144] setpgid(0, 0)               = 0
[pid 22144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22144] write(3, "1000", 4)         = 4
[pid 22144] close(3)                    = 0
[pid 22144] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22144] write(1, "executing program\n", 18executing program
) = 18
[pid 22144] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22144] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22144] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22144] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22144] exit_group(0)               = ?
[pid 22144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21574", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21574", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21574/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21574/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21574/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21574")                        = 0
mkdir("./21575", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22145 attached
, child_tidptr=0x55557a32b650) = 22145
[pid 22145] set_robust_list(0x55557a32b660, 24) = 0
[pid 22145] chdir("./21575")            = 0
[pid 22145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22145] setpgid(0, 0)               = 0
[pid 22145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22145] write(3, "1000", 4)         = 4
[pid 22145] close(3)                    = 0
[pid 22145] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22145] write(1, "executing program\n", 18executing program
) = 18
[pid 22145] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22145] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22145] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22145] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22145] exit_group(0)               = ?
[pid 22145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22145, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21575", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21575", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21575/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21575/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21575/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21575")                        = 0
mkdir("./21576", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22146
./strace-static-x86_64: Process 22146 attached
[pid 22146] set_robust_list(0x55557a32b660, 24) = 0
[pid 22146] chdir("./21576")            = 0
[pid 22146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22146] setpgid(0, 0)               = 0
[pid 22146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22146] write(3, "1000", 4)         = 4
[pid 22146] close(3)                    = 0
[pid 22146] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22146] write(1, "executing program\n", 18) = 18
[pid 22146] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22146] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22146] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22146] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22146] exit_group(0)               = ?
[pid 22146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22146, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21576", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21576", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21576/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21576/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21576/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21576")                        = 0
mkdir("./21577", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22147 attached
, child_tidptr=0x55557a32b650) = 22147
[pid 22147] set_robust_list(0x55557a32b660, 24) = 0
[pid 22147] chdir("./21577")            = 0
[pid 22147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22147] setpgid(0, 0)               = 0
[pid 22147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22147] write(3, "1000", 4)         = 4
[pid 22147] close(3)                    = 0
[pid 22147] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22147] write(1, "executing program\n", 18executing program
) = 18
[pid 22147] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22147] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22147] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22147] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22147] exit_group(0)               = ?
[pid 22147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22147, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21577", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21577", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21577/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21577/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21577/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21577")                        = 0
mkdir("./21578", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22148
./strace-static-x86_64: Process 22148 attached
[pid 22148] set_robust_list(0x55557a32b660, 24) = 0
[pid 22148] chdir("./21578")            = 0
[pid 22148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22148] setpgid(0, 0)               = 0
[pid 22148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22148] write(3, "1000", 4)         = 4
[pid 22148] close(3)                    = 0
[pid 22148] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22148] write(1, "executing program\n", 18executing program
) = 18
[pid 22148] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22148] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22148] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22148] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22148] exit_group(0)               = ?
[pid 22148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22148, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21578", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21578", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21578/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21578/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21578/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21578")                        = 0
mkdir("./21579", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22149 attached
, child_tidptr=0x55557a32b650) = 22149
[pid 22149] set_robust_list(0x55557a32b660, 24) = 0
[pid 22149] chdir("./21579")            = 0
[pid 22149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22149] setpgid(0, 0)               = 0
[pid 22149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22149] write(3, "1000", 4)         = 4
[pid 22149] close(3)                    = 0
[pid 22149] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22149] write(1, "executing program\n", 18executing program
) = 18
[pid 22149] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22149] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22149] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22149] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22149] exit_group(0)               = ?
[pid 22149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22149, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21579", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21579", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21579/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21579/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21579/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21579")                        = 0
mkdir("./21580", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22150
./strace-static-x86_64: Process 22150 attached
[pid 22150] set_robust_list(0x55557a32b660, 24) = 0
[pid 22150] chdir("./21580")            = 0
[pid 22150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22150] setpgid(0, 0)               = 0
[pid 22150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22150] write(3, "1000", 4)         = 4
[pid 22150] close(3)                    = 0
[pid 22150] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22150] write(1, "executing program\n", 18executing program
) = 18
[pid 22150] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22150] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22150] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22150] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22150] exit_group(0)               = ?
[pid 22150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21580", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21580", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21580/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21580/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21580/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21580")                        = 0
mkdir("./21581", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22151
./strace-static-x86_64: Process 22151 attached
[pid 22151] set_robust_list(0x55557a32b660, 24) = 0
[pid 22151] chdir("./21581")            = 0
[pid 22151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22151] setpgid(0, 0)               = 0
[pid 22151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22151] write(3, "1000", 4)         = 4
[pid 22151] close(3)                    = 0
[pid 22151] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22151] write(1, "executing program\n", 18executing program
) = 18
[pid 22151] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22151] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22151] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22151] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22151] exit_group(0)               = ?
[pid 22151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22151, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21581", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21581", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21581/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21581/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21581/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21581")                        = 0
mkdir("./21582", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22152 attached
, child_tidptr=0x55557a32b650) = 22152
[pid 22152] set_robust_list(0x55557a32b660, 24) = 0
[pid 22152] chdir("./21582")            = 0
[pid 22152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22152] setpgid(0, 0)               = 0
[pid 22152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22152] write(3, "1000", 4)         = 4
[pid 22152] close(3)                    = 0
[pid 22152] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22152] write(1, "executing program\n", 18executing program
) = 18
[pid 22152] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22152] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22152] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22152] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22152] exit_group(0)               = ?
[pid 22152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22152, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21582", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21582", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21582/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21582/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21582/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21582")                        = 0
mkdir("./21583", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22153
./strace-static-x86_64: Process 22153 attached
[pid 22153] set_robust_list(0x55557a32b660, 24) = 0
[pid 22153] chdir("./21583")            = 0
[pid 22153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22153] setpgid(0, 0)               = 0
[pid 22153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22153] write(3, "1000", 4)         = 4
[pid 22153] close(3)                    = 0
[pid 22153] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22153] write(1, "executing program\n", 18executing program
) = 18
[pid 22153] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22153] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22153] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22153] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22153] exit_group(0)               = ?
[pid 22153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22153, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21583", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21583", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21583/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21583/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21583/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21583")                        = 0
mkdir("./21584", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22154 attached
, child_tidptr=0x55557a32b650) = 22154
[pid 22154] set_robust_list(0x55557a32b660, 24) = 0
[pid 22154] chdir("./21584")            = 0
[pid 22154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22154] setpgid(0, 0)               = 0
[pid 22154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22154] write(3, "1000", 4)         = 4
[pid 22154] close(3)                    = 0
[pid 22154] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22154] write(1, "executing program\n", 18executing program
) = 18
[pid 22154] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22154] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22154] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22154] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22154] exit_group(0)               = ?
[pid 22154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21584", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21584", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21584/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21584/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21584/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21584")                        = 0
mkdir("./21585", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22155 attached
, child_tidptr=0x55557a32b650) = 22155
[pid 22155] set_robust_list(0x55557a32b660, 24) = 0
[pid 22155] chdir("./21585")            = 0
[pid 22155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22155] setpgid(0, 0)               = 0
[pid 22155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22155] write(3, "1000", 4)         = 4
[pid 22155] close(3)                    = 0
[pid 22155] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22155] write(1, "executing program\n", 18executing program
) = 18
[pid 22155] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22155] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22155] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22155] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22155] exit_group(0)               = ?
[pid 22155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22155, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21585", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21585", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21585/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21585/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21585/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21585")                        = 0
mkdir("./21586", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22156
./strace-static-x86_64: Process 22156 attached
[pid 22156] set_robust_list(0x55557a32b660, 24) = 0
[pid 22156] chdir("./21586")            = 0
[pid 22156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22156] setpgid(0, 0)               = 0
[pid 22156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22156] write(3, "1000", 4)         = 4
[pid 22156] close(3)                    = 0
[pid 22156] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22156] write(1, "executing program\n", 18executing program
) = 18
[pid 22156] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22156] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22156] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22156] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22156] exit_group(0)               = ?
[pid 22156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22156, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21586", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21586", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21586/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21586/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21586/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21586")                        = 0
mkdir("./21587", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22157
./strace-static-x86_64: Process 22157 attached
[pid 22157] set_robust_list(0x55557a32b660, 24) = 0
[pid 22157] chdir("./21587")            = 0
[pid 22157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22157] setpgid(0, 0)               = 0
[pid 22157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22157] write(3, "1000", 4)         = 4
[pid 22157] close(3)                    = 0
[pid 22157] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22157] write(1, "executing program\n", 18executing program
) = 18
[pid 22157] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22157] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22157] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22157] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22157] exit_group(0)               = ?
[pid 22157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22157, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21587", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21587", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21587/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21587/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21587/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21587")                        = 0
mkdir("./21588", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22158
./strace-static-x86_64: Process 22158 attached
[pid 22158] set_robust_list(0x55557a32b660, 24) = 0
[pid 22158] chdir("./21588")            = 0
[pid 22158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22158] setpgid(0, 0)               = 0
[pid 22158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22158] write(3, "1000", 4)         = 4
[pid 22158] close(3)                    = 0
[pid 22158] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22158] write(1, "executing program\n", 18executing program
) = 18
[pid 22158] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22158] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22158] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22158] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22158] exit_group(0)               = ?
[pid 22158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21588", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21588", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21588/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21588/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21588/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21588")                        = 0
mkdir("./21589", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22159 attached
, child_tidptr=0x55557a32b650) = 22159
[pid 22159] set_robust_list(0x55557a32b660, 24) = 0
[pid 22159] chdir("./21589")            = 0
[pid 22159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22159] setpgid(0, 0)               = 0
[pid 22159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22159] write(3, "1000", 4)         = 4
[pid 22159] close(3)                    = 0
[pid 22159] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22159] write(1, "executing program\n", 18) = 18
[pid 22159] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22159] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22159] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22159] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22159] exit_group(0)               = ?
[pid 22159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22159, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21589", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21589", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21589/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21589/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21589/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21589")                        = 0
mkdir("./21590", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22160
./strace-static-x86_64: Process 22160 attached
[pid 22160] set_robust_list(0x55557a32b660, 24) = 0
[pid 22160] chdir("./21590")            = 0
[pid 22160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22160] setpgid(0, 0)               = 0
[pid 22160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22160] write(3, "1000", 4)         = 4
[pid 22160] close(3)                    = 0
[pid 22160] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22160] write(1, "executing program\n", 18executing program
) = 18
[pid 22160] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22160] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22160] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22160] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22160] exit_group(0)               = ?
[pid 22160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22160, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21590", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21590", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21590/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21590/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21590/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21590")                        = 0
mkdir("./21591", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22161 attached
, child_tidptr=0x55557a32b650) = 22161
[pid 22161] set_robust_list(0x55557a32b660, 24) = 0
[pid 22161] chdir("./21591")            = 0
[pid 22161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22161] setpgid(0, 0)               = 0
[pid 22161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22161] write(3, "1000", 4)         = 4
[pid 22161] close(3)                    = 0
[pid 22161] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22161] write(1, "executing program\n", 18executing program
) = 18
[pid 22161] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22161] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22161] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22161] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22161] exit_group(0)               = ?
[pid 22161] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22161, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21591", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21591", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21591/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21591/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21591/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21591")                        = 0
mkdir("./21592", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22162
./strace-static-x86_64: Process 22162 attached
[pid 22162] set_robust_list(0x55557a32b660, 24) = 0
[pid 22162] chdir("./21592")            = 0
[pid 22162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22162] setpgid(0, 0)               = 0
[pid 22162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22162] write(3, "1000", 4)         = 4
[pid 22162] close(3)                    = 0
[pid 22162] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22162] write(1, "executing program\n", 18executing program
) = 18
[pid 22162] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22162] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22162] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22162] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22162] exit_group(0)               = ?
[pid 22162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22162, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21592", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21592", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21592/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21592/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21592/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21592")                        = 0
mkdir("./21593", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22163 attached
, child_tidptr=0x55557a32b650) = 22163
[pid 22163] set_robust_list(0x55557a32b660, 24) = 0
[pid 22163] chdir("./21593")            = 0
[pid 22163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22163] setpgid(0, 0)               = 0
[pid 22163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22163] write(3, "1000", 4)         = 4
[pid 22163] close(3)                    = 0
[pid 22163] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22163] write(1, "executing program\n", 18) = 18
[pid 22163] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22163] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22163] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22163] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22163] exit_group(0)               = ?
[pid 22163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22163, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21593", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21593", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21593/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21593/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21593/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21593")                        = 0
mkdir("./21594", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22164 attached
, child_tidptr=0x55557a32b650) = 22164
[pid 22164] set_robust_list(0x55557a32b660, 24) = 0
[pid 22164] chdir("./21594")            = 0
[pid 22164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22164] setpgid(0, 0)               = 0
[pid 22164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22164] write(3, "1000", 4)         = 4
[pid 22164] close(3)                    = 0
[pid 22164] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22164] write(1, "executing program\n", 18executing program
) = 18
[pid 22164] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22164] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22164] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22164] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22164] exit_group(0)               = ?
[pid 22164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21594", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21594", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21594/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21594/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21594/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21594")                        = 0
mkdir("./21595", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22165 attached
, child_tidptr=0x55557a32b650) = 22165
[pid 22165] set_robust_list(0x55557a32b660, 24) = 0
[pid 22165] chdir("./21595")            = 0
[pid 22165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22165] setpgid(0, 0)               = 0
[pid 22165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22165] write(3, "1000", 4)         = 4
[pid 22165] close(3)                    = 0
[pid 22165] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22165] write(1, "executing program\n", 18) = 18
[pid 22165] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22165] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22165] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22165] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22165] exit_group(0)               = ?
[pid 22165] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22165, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21595", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21595", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21595/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21595/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21595/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21595")                        = 0
mkdir("./21596", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22166 attached
, child_tidptr=0x55557a32b650) = 22166
[pid 22166] set_robust_list(0x55557a32b660, 24) = 0
[pid 22166] chdir("./21596")            = 0
[pid 22166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22166] setpgid(0, 0)               = 0
[pid 22166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22166] write(3, "1000", 4)         = 4
[pid 22166] close(3)                    = 0
[pid 22166] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22166] write(1, "executing program\n", 18executing program
) = 18
[pid 22166] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22166] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22166] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22166] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22166] exit_group(0)               = ?
[pid 22166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22166, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21596", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21596", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21596/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21596/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21596/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21596")                        = 0
mkdir("./21597", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22167
./strace-static-x86_64: Process 22167 attached
[pid 22167] set_robust_list(0x55557a32b660, 24) = 0
[pid 22167] chdir("./21597")            = 0
[pid 22167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22167] setpgid(0, 0)               = 0
[pid 22167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22167] write(3, "1000", 4)         = 4
[pid 22167] close(3)                    = 0
[pid 22167] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22167] write(1, "executing program\n", 18executing program
) = 18
[pid 22167] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22167] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22167] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22167] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22167] exit_group(0)               = ?
[pid 22167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22167, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21597", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21597", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21597/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21597/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21597/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21597")                        = 0
mkdir("./21598", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22168
./strace-static-x86_64: Process 22168 attached
[pid 22168] set_robust_list(0x55557a32b660, 24) = 0
[pid 22168] chdir("./21598")            = 0
[pid 22168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22168] setpgid(0, 0)               = 0
[pid 22168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22168] write(3, "1000", 4)         = 4
[pid 22168] close(3)                    = 0
[pid 22168] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22168] write(1, "executing program\n", 18executing program
) = 18
[pid 22168] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22168] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22168] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22168] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22168] exit_group(0)               = ?
[pid 22168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21598", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21598", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21598/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21598/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21598/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21598")                        = 0
mkdir("./21599", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22169
./strace-static-x86_64: Process 22169 attached
[pid 22169] set_robust_list(0x55557a32b660, 24) = 0
[pid 22169] chdir("./21599")            = 0
[pid 22169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22169] setpgid(0, 0)               = 0
[pid 22169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22169] write(3, "1000", 4)         = 4
[pid 22169] close(3)                    = 0
[pid 22169] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22169] write(1, "executing program\n", 18executing program
) = 18
[pid 22169] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22169] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22169] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22169] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22169] exit_group(0)               = ?
[pid 22169] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22169, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21599", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21599", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21599/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21599/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21599/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21599")                        = 0
mkdir("./21600", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22170
./strace-static-x86_64: Process 22170 attached
[pid 22170] set_robust_list(0x55557a32b660, 24) = 0
[pid 22170] chdir("./21600")            = 0
[pid 22170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22170] setpgid(0, 0)               = 0
[pid 22170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22170] write(3, "1000", 4)         = 4
[pid 22170] close(3)                    = 0
[pid 22170] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22170] write(1, "executing program\n", 18executing program
) = 18
[pid 22170] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22170] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22170] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22170] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22170] exit_group(0)               = ?
[pid 22170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22170, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21600", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21600", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21600/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21600/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21600/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21600")                        = 0
mkdir("./21601", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22171 attached
, child_tidptr=0x55557a32b650) = 22171
[pid 22171] set_robust_list(0x55557a32b660, 24) = 0
[pid 22171] chdir("./21601")            = 0
[pid 22171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22171] setpgid(0, 0)               = 0
[pid 22171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22171] write(3, "1000", 4)         = 4
[pid 22171] close(3)                    = 0
[pid 22171] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22171] write(1, "executing program\n", 18) = 18
[pid 22171] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22171] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22171] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22171] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22171] exit_group(0)               = ?
[pid 22171] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22171, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21601", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21601", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21601/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21601/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21601/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21601")                        = 0
mkdir("./21602", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22172 attached
, child_tidptr=0x55557a32b650) = 22172
[pid 22172] set_robust_list(0x55557a32b660, 24) = 0
[pid 22172] chdir("./21602")            = 0
[pid 22172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22172] setpgid(0, 0)               = 0
[pid 22172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22172] write(3, "1000", 4)         = 4
[pid 22172] close(3)                    = 0
[pid 22172] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22172] write(1, "executing program\n", 18executing program
) = 18
[pid 22172] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22172] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22172] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22172] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22172] exit_group(0)               = ?
[pid 22172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22172, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21602", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21602", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21602/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21602/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21602/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21602")                        = 0
mkdir("./21603", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22173
./strace-static-x86_64: Process 22173 attached
[pid 22173] set_robust_list(0x55557a32b660, 24) = 0
[pid 22173] chdir("./21603")            = 0
[pid 22173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22173] setpgid(0, 0)               = 0
[pid 22173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22173] write(3, "1000", 4)         = 4
[pid 22173] close(3)                    = 0
[pid 22173] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22173] write(1, "executing program\n", 18) = 18
[pid 22173] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22173] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22173] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22173] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22173] exit_group(0)               = ?
[pid 22173] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22173, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21603", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21603", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21603/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21603/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21603/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21603")                        = 0
mkdir("./21604", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22174
./strace-static-x86_64: Process 22174 attached
[pid 22174] set_robust_list(0x55557a32b660, 24) = 0
[pid 22174] chdir("./21604")            = 0
[pid 22174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22174] setpgid(0, 0)               = 0
[pid 22174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22174] write(3, "1000", 4)         = 4
[pid 22174] close(3)                    = 0
[pid 22174] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22174] write(1, "executing program\n", 18executing program
) = 18
[pid 22174] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22174] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22174] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22174] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22174] exit_group(0)               = ?
[pid 22174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22174, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21604", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21604", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21604/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21604/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21604/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21604")                        = 0
mkdir("./21605", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22175
./strace-static-x86_64: Process 22175 attached
[pid 22175] set_robust_list(0x55557a32b660, 24) = 0
[pid 22175] chdir("./21605")            = 0
[pid 22175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22175] setpgid(0, 0)               = 0
[pid 22175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22175] write(3, "1000", 4)         = 4
[pid 22175] close(3)                    = 0
[pid 22175] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22175] write(1, "executing program\n", 18) = 18
[pid 22175] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22175] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22175] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22175] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22175] exit_group(0)               = ?
[pid 22175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22175, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21605", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21605", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21605/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21605/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21605/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21605")                        = 0
mkdir("./21606", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22176
./strace-static-x86_64: Process 22176 attached
[pid 22176] set_robust_list(0x55557a32b660, 24) = 0
[pid 22176] chdir("./21606")            = 0
[pid 22176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22176] setpgid(0, 0)               = 0
[pid 22176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22176] write(3, "1000", 4)         = 4
[pid 22176] close(3)                    = 0
[pid 22176] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22176] write(1, "executing program\n", 18executing program
) = 18
[pid 22176] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22176] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22176] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22176] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22176] exit_group(0)               = ?
[pid 22176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22176, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21606", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21606", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21606/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21606/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21606/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21606")                        = 0
mkdir("./21607", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22177 attached
 <unfinished ...>
[pid 22177] set_robust_list(0x55557a32b660, 24) = 0
[pid 22177] chdir("./21607" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22177
[pid 22177] <... chdir resumed>)        = 0
[pid 22177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22177] setpgid(0, 0)               = 0
[pid 22177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22177] write(3, "1000", 4)         = 4
[pid 22177] close(3)                    = 0
[pid 22177] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22177] write(1, "executing program\n", 18executing program
) = 18
[pid 22177] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22177] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22177] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22177] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22177] exit_group(0)               = ?
[pid 22177] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22177, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21607", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21607", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21607/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21607/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21607/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21607")                        = 0
mkdir("./21608", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22178 attached
, child_tidptr=0x55557a32b650) = 22178
[pid 22178] set_robust_list(0x55557a32b660, 24) = 0
[pid 22178] chdir("./21608")            = 0
[pid 22178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22178] setpgid(0, 0)               = 0
[pid 22178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22178] write(3, "1000", 4)         = 4
[pid 22178] close(3)                    = 0
[pid 22178] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22178] write(1, "executing program\n", 18executing program
) = 18
[pid 22178] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22178] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22178] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22178] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22178] exit_group(0)               = ?
[pid 22178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22178, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21608", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21608", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21608/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21608/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21608/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21608")                        = 0
mkdir("./21609", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22179
./strace-static-x86_64: Process 22179 attached
[pid 22179] set_robust_list(0x55557a32b660, 24) = 0
[pid 22179] chdir("./21609")            = 0
[pid 22179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22179] setpgid(0, 0)               = 0
[pid 22179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22179] write(3, "1000", 4)         = 4
[pid 22179] close(3)                    = 0
[pid 22179] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22179] write(1, "executing program\n", 18executing program
) = 18
[pid 22179] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22179] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22179] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22179] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22179] exit_group(0)               = ?
[pid 22179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22179, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21609", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21609", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21609/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21609/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21609/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21609")                        = 0
mkdir("./21610", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22180 attached
, child_tidptr=0x55557a32b650) = 22180
[pid 22180] set_robust_list(0x55557a32b660, 24) = 0
[pid 22180] chdir("./21610")            = 0
[pid 22180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22180] setpgid(0, 0)               = 0
[pid 22180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22180] write(3, "1000", 4)         = 4
[pid 22180] close(3)                    = 0
[pid 22180] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22180] write(1, "executing program\n", 18) = 18
[pid 22180] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22180] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22180] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22180] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22180] exit_group(0)               = ?
[pid 22180] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22180, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21610", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21610", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21610/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21610/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21610/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21610")                        = 0
mkdir("./21611", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22181
./strace-static-x86_64: Process 22181 attached
[pid 22181] set_robust_list(0x55557a32b660, 24) = 0
[pid 22181] chdir("./21611")            = 0
[pid 22181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22181] setpgid(0, 0)               = 0
[pid 22181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22181] write(3, "1000", 4)         = 4
[pid 22181] close(3)                    = 0
[pid 22181] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22181] write(1, "executing program\n", 18executing program
) = 18
[pid 22181] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22181] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22181] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22181] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22181] exit_group(0)               = ?
[pid 22181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22181, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21611", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21611", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21611/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21611/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21611/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21611")                        = 0
mkdir("./21612", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22182
./strace-static-x86_64: Process 22182 attached
[pid 22182] set_robust_list(0x55557a32b660, 24) = 0
[pid 22182] chdir("./21612")            = 0
[pid 22182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22182] setpgid(0, 0)               = 0
[pid 22182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22182] write(3, "1000", 4)         = 4
[pid 22182] close(3)                    = 0
[pid 22182] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22182] write(1, "executing program\n", 18) = 18
[pid 22182] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22182] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22182] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22182] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22182] exit_group(0)               = ?
[pid 22182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22182, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21612", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21612", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21612/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21612/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21612/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21612")                        = 0
mkdir("./21613", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22183 attached
, child_tidptr=0x55557a32b650) = 22183
[pid 22183] set_robust_list(0x55557a32b660, 24) = 0
[pid 22183] chdir("./21613")            = 0
[pid 22183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22183] setpgid(0, 0)               = 0
[pid 22183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22183] write(3, "1000", 4)         = 4
[pid 22183] close(3)                    = 0
[pid 22183] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22183] write(1, "executing program\n", 18executing program
) = 18
[pid 22183] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22183] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22183] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22183] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22183] exit_group(0)               = ?
[pid 22183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22183, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21613", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21613", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21613/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21613/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21613/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21613")                        = 0
mkdir("./21614", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22184
./strace-static-x86_64: Process 22184 attached
[pid 22184] set_robust_list(0x55557a32b660, 24) = 0
[pid 22184] chdir("./21614")            = 0
[pid 22184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22184] setpgid(0, 0)               = 0
[pid 22184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22184] write(3, "1000", 4)         = 4
[pid 22184] close(3)                    = 0
[pid 22184] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22184] write(1, "executing program\n", 18executing program
) = 18
[pid 22184] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22184] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22184] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22184] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22184] exit_group(0)               = ?
[pid 22184] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22184, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21614", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21614", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21614/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21614/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21614/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21614")                        = 0
mkdir("./21615", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22185
./strace-static-x86_64: Process 22185 attached
[pid 22185] set_robust_list(0x55557a32b660, 24) = 0
[pid 22185] chdir("./21615")            = 0
[pid 22185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22185] setpgid(0, 0)               = 0
[pid 22185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22185] write(3, "1000", 4)         = 4
[pid 22185] close(3)                    = 0
[pid 22185] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22185] write(1, "executing program\n", 18) = 18
[pid 22185] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22185] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22185] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22185] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22185] exit_group(0)               = ?
[pid 22185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22185, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21615", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21615", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21615/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21615/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21615/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21615")                        = 0
mkdir("./21616", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22186 attached
, child_tidptr=0x55557a32b650) = 22186
[pid 22186] set_robust_list(0x55557a32b660, 24) = 0
[pid 22186] chdir("./21616")            = 0
[pid 22186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22186] setpgid(0, 0)               = 0
[pid 22186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22186] write(3, "1000", 4)         = 4
[pid 22186] close(3)                    = 0
[pid 22186] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22186] write(1, "executing program\n", 18executing program
) = 18
[pid 22186] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22186] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22186] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22186] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22186] exit_group(0)               = ?
[pid 22186] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22186, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21616", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21616", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21616/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21616/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21616/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21616")                        = 0
mkdir("./21617", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22187
./strace-static-x86_64: Process 22187 attached
[pid 22187] set_robust_list(0x55557a32b660, 24) = 0
[pid 22187] chdir("./21617")            = 0
[pid 22187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22187] setpgid(0, 0)               = 0
[pid 22187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22187] write(3, "1000", 4)         = 4
[pid 22187] close(3)                    = 0
[pid 22187] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22187] write(1, "executing program\n", 18executing program
) = 18
[pid 22187] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22187] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22187] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22187] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22187] exit_group(0)               = ?
[pid 22187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22187, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21617", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21617", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21617/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21617/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21617/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21617")                        = 0
mkdir("./21618", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22188
./strace-static-x86_64: Process 22188 attached
[pid 22188] set_robust_list(0x55557a32b660, 24) = 0
[pid 22188] chdir("./21618")            = 0
[pid 22188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22188] setpgid(0, 0)               = 0
[pid 22188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22188] write(3, "1000", 4)         = 4
[pid 22188] close(3)                    = 0
[pid 22188] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22188] write(1, "executing program\n", 18executing program
) = 18
[pid 22188] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22188] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22188] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22188] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22188] exit_group(0)               = ?
[pid 22188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22188, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21618", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21618", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21618/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21618/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21618/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21618")                        = 0
mkdir("./21619", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22189
./strace-static-x86_64: Process 22189 attached
[pid 22189] set_robust_list(0x55557a32b660, 24) = 0
[pid 22189] chdir("./21619")            = 0
[pid 22189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22189] setpgid(0, 0)               = 0
[pid 22189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22189] write(3, "1000", 4)         = 4
[pid 22189] close(3)                    = 0
[pid 22189] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22189] write(1, "executing program\n", 18executing program
) = 18
[pid 22189] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22189] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22189] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22189] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22189] exit_group(0)               = ?
[pid 22189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22189, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21619", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21619", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21619/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21619/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21619/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21619")                        = 0
mkdir("./21620", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22190 attached
, child_tidptr=0x55557a32b650) = 22190
[pid 22190] set_robust_list(0x55557a32b660, 24) = 0
[pid 22190] chdir("./21620")            = 0
[pid 22190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22190] setpgid(0, 0)               = 0
[pid 22190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22190] write(3, "1000", 4)         = 4
[pid 22190] close(3)                    = 0
[pid 22190] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22190] write(1, "executing program\n", 18executing program
) = 18
[pid 22190] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22190] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22190] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22190] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22190] exit_group(0)               = ?
[pid 22190] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22190, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21620", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21620", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21620/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21620/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21620/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21620")                        = 0
mkdir("./21621", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22191 attached
 <unfinished ...>
[pid 22191] set_robust_list(0x55557a32b660, 24) = 0
[pid 22191] chdir("./21621")            = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22191
[pid 22191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22191] setpgid(0, 0)               = 0
[pid 22191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22191] write(3, "1000", 4)         = 4
[pid 22191] close(3)                    = 0
[pid 22191] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22191] write(1, "executing program\n", 18executing program
) = 18
[pid 22191] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22191] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22191] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22191] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22191] exit_group(0)               = ?
[pid 22191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22191, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21621", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21621", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21621/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21621/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21621/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21621")                        = 0
mkdir("./21622", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22192
./strace-static-x86_64: Process 22192 attached
[pid 22192] set_robust_list(0x55557a32b660, 24) = 0
[pid 22192] chdir("./21622")            = 0
[pid 22192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22192] setpgid(0, 0)               = 0
[pid 22192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22192] write(3, "1000", 4)         = 4
[pid 22192] close(3)                    = 0
[pid 22192] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22192] write(1, "executing program\n", 18executing program
) = 18
[pid 22192] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22192] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22192] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22192] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22192] exit_group(0)               = ?
[pid 22192] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22192, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21622", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21622", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21622/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21622/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21622/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21622")                        = 0
mkdir("./21623", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22193 attached
, child_tidptr=0x55557a32b650) = 22193
[pid 22193] set_robust_list(0x55557a32b660, 24) = 0
[pid 22193] chdir("./21623")            = 0
[pid 22193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22193] setpgid(0, 0)               = 0
[pid 22193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22193] write(3, "1000", 4)         = 4
[pid 22193] close(3)                    = 0
[pid 22193] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22193] write(1, "executing program\n", 18) = 18
[pid 22193] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22193] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22193] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22193] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22193] exit_group(0)               = ?
[pid 22193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22193, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21623", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21623", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21623/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21623/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21623/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21623")                        = 0
mkdir("./21624", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22194 attached
, child_tidptr=0x55557a32b650) = 22194
[pid 22194] set_robust_list(0x55557a32b660, 24) = 0
[pid 22194] chdir("./21624")            = 0
[pid 22194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22194] setpgid(0, 0)               = 0
[pid 22194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22194] write(3, "1000", 4)         = 4
[pid 22194] close(3)                    = 0
[pid 22194] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22194] write(1, "executing program\n", 18executing program
) = 18
[pid 22194] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22194] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22194] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22194] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22194] exit_group(0)               = ?
[pid 22194] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22194, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21624", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21624", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21624/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21624/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21624/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21624")                        = 0
mkdir("./21625", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22195
./strace-static-x86_64: Process 22195 attached
[pid 22195] set_robust_list(0x55557a32b660, 24) = 0
[pid 22195] chdir("./21625")            = 0
[pid 22195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22195] setpgid(0, 0)               = 0
[pid 22195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22195] write(3, "1000", 4)         = 4
[pid 22195] close(3)                    = 0
[pid 22195] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22195] write(1, "executing program\n", 18executing program
) = 18
[pid 22195] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22195] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22195] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22195] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22195] exit_group(0)               = ?
[pid 22195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22195, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21625", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21625", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21625/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21625/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21625/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21625")                        = 0
mkdir("./21626", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22196
./strace-static-x86_64: Process 22196 attached
[pid 22196] set_robust_list(0x55557a32b660, 24) = 0
[pid 22196] chdir("./21626")            = 0
[pid 22196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22196] setpgid(0, 0)               = 0
[pid 22196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22196] write(3, "1000", 4)         = 4
[pid 22196] close(3)                    = 0
[pid 22196] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22196] write(1, "executing program\n", 18executing program
) = 18
[pid 22196] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22196] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22196] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22196] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22196] exit_group(0)               = ?
[pid 22196] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22196, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21626", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21626", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21626/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21626/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21626/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21626")                        = 0
mkdir("./21627", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22197 attached
, child_tidptr=0x55557a32b650) = 22197
[pid 22197] set_robust_list(0x55557a32b660, 24) = 0
[pid 22197] chdir("./21627")            = 0
[pid 22197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22197] setpgid(0, 0)               = 0
[pid 22197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22197] write(3, "1000", 4)         = 4
[pid 22197] close(3)                    = 0
[pid 22197] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22197] write(1, "executing program\n", 18executing program
) = 18
[pid 22197] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22197] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22197] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22197] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22197] exit_group(0)               = ?
[pid 22197] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22197, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21627", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21627", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21627/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21627/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21627/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21627")                        = 0
mkdir("./21628", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22198 attached
, child_tidptr=0x55557a32b650) = 22198
[pid 22198] set_robust_list(0x55557a32b660, 24) = 0
[pid 22198] chdir("./21628")            = 0
[pid 22198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22198] setpgid(0, 0)               = 0
[pid 22198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22198] write(3, "1000", 4)         = 4
[pid 22198] close(3)                    = 0
[pid 22198] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22198] write(1, "executing program\n", 18executing program
) = 18
[pid 22198] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22198] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22198] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22198] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22198] exit_group(0)               = ?
[pid 22198] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22198, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21628", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21628", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21628/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21628/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21628/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21628")                        = 0
mkdir("./21629", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22200 attached
 <unfinished ...>
[pid 22200] set_robust_list(0x55557a32b660, 24) = 0
[pid 22200] chdir("./21629")            = 0
[pid 22200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22200
[pid 22200] setpgid(0, 0)               = 0
[pid 22200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22200] write(3, "1000", 4)         = 4
[pid 22200] close(3)                    = 0
[pid 22200] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22200] write(1, "executing program\n", 18executing program
) = 18
[pid 22200] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22200] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22200] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22200] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22200] exit_group(0)               = ?
[pid 22200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22200, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21629", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21629", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21629/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21629/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21629/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21629")                        = 0
mkdir("./21630", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22201
./strace-static-x86_64: Process 22201 attached
[pid 22201] set_robust_list(0x55557a32b660, 24) = 0
[pid 22201] chdir("./21630")            = 0
[pid 22201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22201] setpgid(0, 0)               = 0
[pid 22201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22201] write(3, "1000", 4)         = 4
[pid 22201] close(3)                    = 0
[pid 22201] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22201] write(1, "executing program\n", 18executing program
) = 18
[pid 22201] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22201] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22201] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22201] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22201] exit_group(0)               = ?
[pid 22201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22201, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21630", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21630", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21630/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21630/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21630/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21630")                        = 0
mkdir("./21631", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22202
./strace-static-x86_64: Process 22202 attached
[pid 22202] set_robust_list(0x55557a32b660, 24) = 0
[pid 22202] chdir("./21631")            = 0
[pid 22202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22202] setpgid(0, 0)               = 0
[pid 22202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22202] write(3, "1000", 4)         = 4
[pid 22202] close(3)                    = 0
[pid 22202] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22202] write(1, "executing program\n", 18) = 18
[pid 22202] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22202] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22202] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22202] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22202] exit_group(0)               = ?
[pid 22202] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22202, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21631", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21631", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21631/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21631/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21631/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21631")                        = 0
mkdir("./21632", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22203
./strace-static-x86_64: Process 22203 attached
[pid 22203] set_robust_list(0x55557a32b660, 24) = 0
[pid 22203] chdir("./21632")            = 0
[pid 22203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22203] setpgid(0, 0)               = 0
[pid 22203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22203] write(3, "1000", 4)         = 4
[pid 22203] close(3)                    = 0
[pid 22203] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22203] write(1, "executing program\n", 18executing program
) = 18
[pid 22203] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22203] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22203] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22203] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22203] exit_group(0)               = ?
[pid 22203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22203, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21632", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21632", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21632/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21632/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21632/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21632")                        = 0
mkdir("./21633", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22204
./strace-static-x86_64: Process 22204 attached
[pid 22204] set_robust_list(0x55557a32b660, 24) = 0
[pid 22204] chdir("./21633")            = 0
[pid 22204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22204] setpgid(0, 0)               = 0
[pid 22204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22204] write(3, "1000", 4)         = 4
[pid 22204] close(3)                    = 0
[pid 22204] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22204] write(1, "executing program\n", 18executing program
) = 18
[pid 22204] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22204] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22204] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22204] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22204] exit_group(0)               = ?
[pid 22204] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22204, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21633", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21633", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21633/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21633/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21633/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21633")                        = 0
mkdir("./21634", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22205 attached
, child_tidptr=0x55557a32b650) = 22205
[pid 22205] set_robust_list(0x55557a32b660, 24) = 0
[pid 22205] chdir("./21634")            = 0
[pid 22205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22205] setpgid(0, 0)               = 0
[pid 22205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22205] write(3, "1000", 4)         = 4
[pid 22205] close(3)                    = 0
[pid 22205] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22205] write(1, "executing program\n", 18executing program
) = 18
[pid 22205] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22205] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22205] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22205] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22205] exit_group(0)               = ?
[pid 22205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22205, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21634", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21634", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21634/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21634/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21634/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21634")                        = 0
mkdir("./21635", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22206 attached
, child_tidptr=0x55557a32b650) = 22206
[pid 22206] set_robust_list(0x55557a32b660, 24) = 0
[pid 22206] chdir("./21635")            = 0
[pid 22206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22206] setpgid(0, 0)               = 0
[pid 22206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22206] write(3, "1000", 4)         = 4
[pid 22206] close(3)                    = 0
[pid 22206] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22206] write(1, "executing program\n", 18executing program
) = 18
[pid 22206] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22206] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22206] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22206] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22206] exit_group(0)               = ?
[pid 22206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22206, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21635", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21635", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21635/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21635/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21635/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21635")                        = 0
mkdir("./21636", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22207
./strace-static-x86_64: Process 22207 attached
[pid 22207] set_robust_list(0x55557a32b660, 24) = 0
[pid 22207] chdir("./21636")            = 0
[pid 22207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22207] setpgid(0, 0)               = 0
[pid 22207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22207] write(3, "1000", 4)         = 4
[pid 22207] close(3)                    = 0
[pid 22207] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22207] write(1, "executing program\n", 18executing program
) = 18
[pid 22207] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22207] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22207] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22207] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22207] exit_group(0)               = ?
[pid 22207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22207, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21636", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21636", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21636/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21636/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21636/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21636")                        = 0
mkdir("./21637", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22208
./strace-static-x86_64: Process 22208 attached
[pid 22208] set_robust_list(0x55557a32b660, 24) = 0
[pid 22208] chdir("./21637")            = 0
[pid 22208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22208] setpgid(0, 0)               = 0
[pid 22208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22208] write(3, "1000", 4)         = 4
[pid 22208] close(3)                    = 0
[pid 22208] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22208] write(1, "executing program\n", 18executing program
) = 18
[pid 22208] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22208] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22208] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22208] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22208] exit_group(0)               = ?
[pid 22208] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22208, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21637", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21637", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21637/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21637/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21637/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21637")                        = 0
mkdir("./21638", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22209
./strace-static-x86_64: Process 22209 attached
[pid 22209] set_robust_list(0x55557a32b660, 24) = 0
[pid 22209] chdir("./21638")            = 0
[pid 22209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22209] setpgid(0, 0)               = 0
[pid 22209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22209] write(3, "1000", 4)         = 4
[pid 22209] close(3)                    = 0
[pid 22209] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22209] write(1, "executing program\n", 18executing program
) = 18
[pid 22209] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22209] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22209] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22209] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22209] exit_group(0)               = ?
[pid 22209] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22209, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21638", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21638", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21638/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21638/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21638/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21638")                        = 0
mkdir("./21639", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22210 attached
, child_tidptr=0x55557a32b650) = 22210
[pid 22210] set_robust_list(0x55557a32b660, 24) = 0
[pid 22210] chdir("./21639")            = 0
[pid 22210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22210] setpgid(0, 0)               = 0
[pid 22210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22210] write(3, "1000", 4)         = 4
[pid 22210] close(3)                    = 0
[pid 22210] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22210] write(1, "executing program\n", 18) = 18
[pid 22210] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22210] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22210] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22210] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22210] exit_group(0)               = ?
[pid 22210] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22210, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21639", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21639", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21639/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21639/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21639/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21639")                        = 0
mkdir("./21640", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22211
./strace-static-x86_64: Process 22211 attached
[pid 22211] set_robust_list(0x55557a32b660, 24) = 0
[pid 22211] chdir("./21640")            = 0
[pid 22211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22211] setpgid(0, 0)               = 0
[pid 22211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22211] write(3, "1000", 4)         = 4
[pid 22211] close(3)                    = 0
[pid 22211] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22211] write(1, "executing program\n", 18executing program
) = 18
[pid 22211] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22211] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22211] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22211] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22211] exit_group(0)               = ?
[pid 22211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22211, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21640", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21640", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21640/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21640/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21640/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21640")                        = 0
mkdir("./21641", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22212
./strace-static-x86_64: Process 22212 attached
[pid 22212] set_robust_list(0x55557a32b660, 24) = 0
[pid 22212] chdir("./21641")            = 0
[pid 22212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22212] setpgid(0, 0)               = 0
[pid 22212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22212] write(3, "1000", 4)         = 4
[pid 22212] close(3)                    = 0
[pid 22212] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22212] write(1, "executing program\n", 18) = 18
[pid 22212] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22212] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22212] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22212] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22212] exit_group(0)               = ?
[pid 22212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22212, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21641", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21641", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21641/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21641/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21641/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21641")                        = 0
mkdir("./21642", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22213
./strace-static-x86_64: Process 22213 attached
[pid 22213] set_robust_list(0x55557a32b660, 24) = 0
[pid 22213] chdir("./21642")            = 0
[pid 22213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22213] setpgid(0, 0)               = 0
[pid 22213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22213] write(3, "1000", 4)         = 4
[pid 22213] close(3)                    = 0
[pid 22213] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22213] write(1, "executing program\n", 18executing program
) = 18
[pid 22213] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22213] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22213] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22213] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22213] exit_group(0)               = ?
[pid 22213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22213, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21642", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21642", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21642/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21642/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21642/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21642")                        = 0
mkdir("./21643", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22214
./strace-static-x86_64: Process 22214 attached
[pid 22214] set_robust_list(0x55557a32b660, 24) = 0
[pid 22214] chdir("./21643")            = 0
[pid 22214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22214] setpgid(0, 0)               = 0
[pid 22214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22214] write(3, "1000", 4)         = 4
[pid 22214] close(3)                    = 0
[pid 22214] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22214] write(1, "executing program\n", 18) = 18
[pid 22214] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22214] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22214] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22214] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22214] exit_group(0)               = ?
[pid 22214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22214, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21643", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21643", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21643/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21643/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21643/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21643")                        = 0
mkdir("./21644", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22215 attached
, child_tidptr=0x55557a32b650) = 22215
[pid 22215] set_robust_list(0x55557a32b660, 24) = 0
[pid 22215] chdir("./21644")            = 0
[pid 22215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22215] setpgid(0, 0)               = 0
[pid 22215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22215] write(3, "1000", 4)         = 4
[pid 22215] close(3)                    = 0
[pid 22215] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22215] write(1, "executing program\n", 18executing program
) = 18
[pid 22215] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22215] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22215] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22215] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22215] exit_group(0)               = ?
[pid 22215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22215, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21644", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21644", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21644/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21644/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21644/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21644")                        = 0
mkdir("./21645", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22216
./strace-static-x86_64: Process 22216 attached
[pid 22216] set_robust_list(0x55557a32b660, 24) = 0
[pid 22216] chdir("./21645")            = 0
[pid 22216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22216] setpgid(0, 0)               = 0
[pid 22216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22216] write(3, "1000", 4)         = 4
[pid 22216] close(3)                    = 0
[pid 22216] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22216] write(1, "executing program\n", 18executing program
) = 18
[pid 22216] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22216] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22216] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22216] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22216] exit_group(0)               = ?
[pid 22216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22216, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21645", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21645", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21645/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21645/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21645/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21645")                        = 0
mkdir("./21646", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22217
./strace-static-x86_64: Process 22217 attached
[pid 22217] set_robust_list(0x55557a32b660, 24) = 0
[pid 22217] chdir("./21646")            = 0
[pid 22217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22217] setpgid(0, 0)               = 0
[pid 22217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22217] write(3, "1000", 4)         = 4
[pid 22217] close(3)                    = 0
[pid 22217] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22217] write(1, "executing program\n", 18executing program
) = 18
[pid 22217] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22217] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22217] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22217] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22217] exit_group(0)               = ?
[pid 22217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22217, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21646", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21646", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21646/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21646/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21646/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21646")                        = 0
mkdir("./21647", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22218
./strace-static-x86_64: Process 22218 attached
[pid 22218] set_robust_list(0x55557a32b660, 24) = 0
[pid 22218] chdir("./21647")            = 0
[pid 22218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22218] setpgid(0, 0)               = 0
[pid 22218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22218] write(3, "1000", 4)         = 4
[pid 22218] close(3)                    = 0
[pid 22218] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22218] write(1, "executing program\n", 18executing program
) = 18
[pid 22218] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22218] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22218] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22218] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22218] exit_group(0)               = ?
[pid 22218] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22218, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21647", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21647", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21647/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21647/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21647/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21647")                        = 0
mkdir("./21648", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22219
./strace-static-x86_64: Process 22219 attached
[pid 22219] set_robust_list(0x55557a32b660, 24) = 0
[pid 22219] chdir("./21648")            = 0
[pid 22219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22219] setpgid(0, 0)               = 0
[pid 22219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22219] write(3, "1000", 4)         = 4
[pid 22219] close(3)                    = 0
[pid 22219] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22219] write(1, "executing program\n", 18executing program
) = 18
[pid 22219] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22219] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22219] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22219] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22219] exit_group(0)               = ?
[pid 22219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22219, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21648", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21648", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21648/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21648/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21648/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21648")                        = 0
mkdir("./21649", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22220 attached
, child_tidptr=0x55557a32b650) = 22220
[pid 22220] set_robust_list(0x55557a32b660, 24) = 0
[pid 22220] chdir("./21649")            = 0
[pid 22220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22220] setpgid(0, 0)               = 0
[pid 22220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22220] write(3, "1000", 4)         = 4
[pid 22220] close(3)                    = 0
[pid 22220] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22220] write(1, "executing program\n", 18) = 18
[pid 22220] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22220] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22220] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22220] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22220] exit_group(0)               = ?
[pid 22220] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22220, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21649", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21649", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21649/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21649/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21649/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21649")                        = 0
mkdir("./21650", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22221 attached
, child_tidptr=0x55557a32b650) = 22221
[pid 22221] set_robust_list(0x55557a32b660, 24) = 0
[pid 22221] chdir("./21650")            = 0
[pid 22221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22221] setpgid(0, 0)               = 0
[pid 22221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22221] write(3, "1000", 4)         = 4
[pid 22221] close(3)                    = 0
[pid 22221] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22221] write(1, "executing program\n", 18executing program
) = 18
[pid 22221] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22221] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22221] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22221] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22221] exit_group(0)               = ?
[pid 22221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22221, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21650", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21650", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21650/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21650/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21650/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21650")                        = 0
mkdir("./21651", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22222
./strace-static-x86_64: Process 22222 attached
[pid 22222] set_robust_list(0x55557a32b660, 24) = 0
[pid 22222] chdir("./21651")            = 0
[pid 22222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22222] setpgid(0, 0)               = 0
[pid 22222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22222] write(3, "1000", 4)         = 4
[pid 22222] close(3)                    = 0
[pid 22222] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22222] write(1, "executing program\n", 18executing program
) = 18
[pid 22222] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22222] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22222] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22222] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22222] exit_group(0)               = ?
[pid 22222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22222, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21651", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21651", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21651/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21651/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21651/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21651")                        = 0
mkdir("./21652", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22223
./strace-static-x86_64: Process 22223 attached
[pid 22223] set_robust_list(0x55557a32b660, 24) = 0
[pid 22223] chdir("./21652")            = 0
[pid 22223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22223] setpgid(0, 0)               = 0
[pid 22223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22223] write(3, "1000", 4)         = 4
[pid 22223] close(3)                    = 0
[pid 22223] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22223] write(1, "executing program\n", 18executing program
) = 18
[pid 22223] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22223] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22223] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22223] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22223] exit_group(0)               = ?
[pid 22223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22223, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21652", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21652", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21652/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21652/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21652/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21652")                        = 0
mkdir("./21653", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22224
./strace-static-x86_64: Process 22224 attached
[pid 22224] set_robust_list(0x55557a32b660, 24) = 0
[pid 22224] chdir("./21653")            = 0
[pid 22224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22224] setpgid(0, 0)               = 0
[pid 22224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22224] write(3, "1000", 4)         = 4
[pid 22224] close(3)                    = 0
[pid 22224] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22224] write(1, "executing program\n", 18executing program
) = 18
[pid 22224] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22224] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22224] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22224] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22224] exit_group(0)               = ?
[pid 22224] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22224, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21653", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21653", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21653/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21653/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21653/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21653")                        = 0
mkdir("./21654", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22225
./strace-static-x86_64: Process 22225 attached
[pid 22225] set_robust_list(0x55557a32b660, 24) = 0
[pid 22225] chdir("./21654")            = 0
[pid 22225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22225] setpgid(0, 0)               = 0
[pid 22225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22225] write(3, "1000", 4)         = 4
[pid 22225] close(3)                    = 0
[pid 22225] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22225] write(1, "executing program\n", 18executing program
) = 18
[pid 22225] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22225] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22225] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22225] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22225] exit_group(0)               = ?
[pid 22225] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22225, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21654", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21654", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21654/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21654/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21654/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21654")                        = 0
mkdir("./21655", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22226
./strace-static-x86_64: Process 22226 attached
[pid 22226] set_robust_list(0x55557a32b660, 24) = 0
[pid 22226] chdir("./21655")            = 0
[pid 22226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22226] setpgid(0, 0)               = 0
[pid 22226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22226] write(3, "1000", 4)         = 4
[pid 22226] close(3)                    = 0
[pid 22226] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22226] write(1, "executing program\n", 18executing program
) = 18
[pid 22226] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22226] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22226] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22226] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22226] exit_group(0)               = ?
[pid 22226] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22226, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21655", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21655", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21655/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21655/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21655/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21655")                        = 0
mkdir("./21656", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22227
./strace-static-x86_64: Process 22227 attached
[pid 22227] set_robust_list(0x55557a32b660, 24) = 0
[pid 22227] chdir("./21656")            = 0
[pid 22227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22227] setpgid(0, 0)               = 0
[pid 22227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22227] write(3, "1000", 4)         = 4
[pid 22227] close(3)                    = 0
[pid 22227] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22227] write(1, "executing program\n", 18executing program
) = 18
[pid 22227] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22227] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22227] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22227] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22227] exit_group(0)               = ?
[pid 22227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22227, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21656", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21656", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21656/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21656/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21656/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21656")                        = 0
mkdir("./21657", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22228
./strace-static-x86_64: Process 22228 attached
[pid 22228] set_robust_list(0x55557a32b660, 24) = 0
[pid 22228] chdir("./21657")            = 0
[pid 22228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22228] setpgid(0, 0)               = 0
[pid 22228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22228] write(3, "1000", 4)         = 4
[pid 22228] close(3)                    = 0
[pid 22228] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22228] write(1, "executing program\n", 18executing program
) = 18
[pid 22228] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22228] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22228] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22228] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22228] exit_group(0)               = ?
[pid 22228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22228, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21657", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21657", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21657/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21657/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21657/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21657")                        = 0
mkdir("./21658", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22229
./strace-static-x86_64: Process 22229 attached
[pid 22229] set_robust_list(0x55557a32b660, 24) = 0
[pid 22229] chdir("./21658")            = 0
[pid 22229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22229] setpgid(0, 0)               = 0
[pid 22229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22229] write(3, "1000", 4)         = 4
[pid 22229] close(3)                    = 0
[pid 22229] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22229] write(1, "executing program\n", 18executing program
) = 18
[pid 22229] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22229] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22229] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22229] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22229] exit_group(0)               = ?
[pid 22229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22229, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21658", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21658", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21658/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21658/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21658/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21658")                        = 0
mkdir("./21659", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22230
./strace-static-x86_64: Process 22230 attached
[pid 22230] set_robust_list(0x55557a32b660, 24) = 0
[pid 22230] chdir("./21659")            = 0
[pid 22230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22230] setpgid(0, 0)               = 0
[pid 22230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22230] write(3, "1000", 4)         = 4
[pid 22230] close(3)                    = 0
[pid 22230] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22230] write(1, "executing program\n", 18) = 18
[pid 22230] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22230] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22230] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22230] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22230] exit_group(0)               = ?
[pid 22230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22230, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21659", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21659", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21659/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21659/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21659/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21659")                        = 0
mkdir("./21660", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22231 attached
, child_tidptr=0x55557a32b650) = 22231
[pid 22231] set_robust_list(0x55557a32b660, 24) = 0
[pid 22231] chdir("./21660")            = 0
[pid 22231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22231] setpgid(0, 0)               = 0
[pid 22231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22231] write(3, "1000", 4)         = 4
[pid 22231] close(3)                    = 0
[pid 22231] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22231] write(1, "executing program\n", 18) = 18
[pid 22231] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22231] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22231] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22231] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22231] exit_group(0)               = ?
[pid 22231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22231, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21660", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21660", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21660/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21660/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21660/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21660")                        = 0
mkdir("./21661", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22232
./strace-static-x86_64: Process 22232 attached
[pid 22232] set_robust_list(0x55557a32b660, 24) = 0
[pid 22232] chdir("./21661")            = 0
[pid 22232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22232] setpgid(0, 0)               = 0
[pid 22232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22232] write(3, "1000", 4)         = 4
[pid 22232] close(3)                    = 0
[pid 22232] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22232] write(1, "executing program\n", 18) = 18
[pid 22232] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22232] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22232] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22232] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22232] exit_group(0)               = ?
[pid 22232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22232, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21661", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21661", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21661/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21661/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21661/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21661")                        = 0
mkdir("./21662", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22233
./strace-static-x86_64: Process 22233 attached
[pid 22233] set_robust_list(0x55557a32b660, 24) = 0
[pid 22233] chdir("./21662")            = 0
[pid 22233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22233] setpgid(0, 0)               = 0
[pid 22233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22233] write(3, "1000", 4)         = 4
[pid 22233] close(3)                    = 0
[pid 22233] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22233] write(1, "executing program\n", 18executing program
) = 18
[pid 22233] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22233] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22233] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22233] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22233] exit_group(0)               = ?
[pid 22233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22233, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21662", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21662", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21662/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21662/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21662/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21662")                        = 0
mkdir("./21663", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22234
./strace-static-x86_64: Process 22234 attached
[pid 22234] set_robust_list(0x55557a32b660, 24) = 0
[pid 22234] chdir("./21663")            = 0
[pid 22234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22234] setpgid(0, 0)               = 0
[pid 22234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22234] write(3, "1000", 4)         = 4
[pid 22234] close(3)                    = 0
[pid 22234] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22234] write(1, "executing program\n", 18executing program
) = 18
[pid 22234] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22234] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22234] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22234] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22234] exit_group(0)               = ?
[pid 22234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22234, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21663", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21663", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21663/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21663/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21663/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21663")                        = 0
mkdir("./21664", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22235
./strace-static-x86_64: Process 22235 attached
[pid 22235] set_robust_list(0x55557a32b660, 24) = 0
[pid 22235] chdir("./21664")            = 0
[pid 22235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22235] setpgid(0, 0)               = 0
[pid 22235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22235] write(3, "1000", 4)         = 4
[pid 22235] close(3)                    = 0
[pid 22235] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22235] write(1, "executing program\n", 18) = 18
[pid 22235] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22235] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22235] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22235] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22235] exit_group(0)               = ?
[pid 22235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22235, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21664", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21664", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21664/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21664/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21664/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21664")                        = 0
mkdir("./21665", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22236
./strace-static-x86_64: Process 22236 attached
[pid 22236] set_robust_list(0x55557a32b660, 24) = 0
[pid 22236] chdir("./21665")            = 0
[pid 22236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22236] setpgid(0, 0)               = 0
[pid 22236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22236] write(3, "1000", 4)         = 4
[pid 22236] close(3)                    = 0
[pid 22236] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22236] write(1, "executing program\n", 18executing program
) = 18
[pid 22236] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22236] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22236] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22236] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22236] exit_group(0)               = ?
[pid 22236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22236, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21665", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21665", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21665/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21665/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21665/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21665")                        = 0
mkdir("./21666", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22237
./strace-static-x86_64: Process 22237 attached
[pid 22237] set_robust_list(0x55557a32b660, 24) = 0
[pid 22237] chdir("./21666")            = 0
[pid 22237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22237] setpgid(0, 0)               = 0
[pid 22237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22237] write(3, "1000", 4)         = 4
[pid 22237] close(3)                    = 0
[pid 22237] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22237] write(1, "executing program\n", 18executing program
) = 18
[pid 22237] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22237] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22237] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22237] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22237] exit_group(0)               = ?
[pid 22237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22237, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21666", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21666", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21666/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21666/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21666/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21666")                        = 0
mkdir("./21667", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22238
./strace-static-x86_64: Process 22238 attached
[pid 22238] set_robust_list(0x55557a32b660, 24) = 0
[pid 22238] chdir("./21667")            = 0
[pid 22238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22238] setpgid(0, 0)               = 0
[pid 22238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22238] write(3, "1000", 4)         = 4
[pid 22238] close(3)                    = 0
[pid 22238] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22238] write(1, "executing program\n", 18executing program
) = 18
[pid 22238] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22238] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22238] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22238] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22238] exit_group(0)               = ?
[pid 22238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22238, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21667", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21667", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21667/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21667/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21667/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21667")                        = 0
mkdir("./21668", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22239
./strace-static-x86_64: Process 22239 attached
[pid 22239] set_robust_list(0x55557a32b660, 24) = 0
[pid 22239] chdir("./21668")            = 0
[pid 22239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22239] setpgid(0, 0)               = 0
[pid 22239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22239] write(3, "1000", 4)         = 4
[pid 22239] close(3)                    = 0
[pid 22239] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22239] write(1, "executing program\n", 18executing program
) = 18
[pid 22239] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22239] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22239] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22239] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22239] exit_group(0)               = ?
[pid 22239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22239, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21668", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21668", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21668/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21668/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21668/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21668")                        = 0
mkdir("./21669", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22240 attached
, child_tidptr=0x55557a32b650) = 22240
[pid 22240] set_robust_list(0x55557a32b660, 24) = 0
[pid 22240] chdir("./21669")            = 0
[pid 22240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22240] setpgid(0, 0)               = 0
[pid 22240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22240] write(3, "1000", 4)         = 4
[pid 22240] close(3)                    = 0
[pid 22240] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22240] write(1, "executing program\n", 18executing program
) = 18
[pid 22240] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22240] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22240] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22240] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22240] exit_group(0)               = ?
[pid 22240] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22240, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21669", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21669", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21669/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21669/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21669/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21669")                        = 0
mkdir("./21670", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22241
./strace-static-x86_64: Process 22241 attached
[pid 22241] set_robust_list(0x55557a32b660, 24) = 0
[pid 22241] chdir("./21670")            = 0
[pid 22241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22241] setpgid(0, 0)               = 0
[pid 22241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22241] write(3, "1000", 4)         = 4
[pid 22241] close(3)                    = 0
[pid 22241] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22241] write(1, "executing program\n", 18executing program
) = 18
[pid 22241] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22241] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22241] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22241] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22241] exit_group(0)               = ?
[pid 22241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22241, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21670", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21670", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21670/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21670/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21670/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21670")                        = 0
mkdir("./21671", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22242 attached
, child_tidptr=0x55557a32b650) = 22242
[pid 22242] set_robust_list(0x55557a32b660, 24) = 0
[pid 22242] chdir("./21671")            = 0
[pid 22242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22242] setpgid(0, 0)               = 0
[pid 22242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22242] write(3, "1000", 4)         = 4
[pid 22242] close(3)                    = 0
[pid 22242] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22242] write(1, "executing program\n", 18executing program
) = 18
[pid 22242] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22242] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22242] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22242] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22242] exit_group(0)               = ?
[pid 22242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22242, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21671", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21671", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21671/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21671/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21671/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21671")                        = 0
mkdir("./21672", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22243
./strace-static-x86_64: Process 22243 attached
[pid 22243] set_robust_list(0x55557a32b660, 24) = 0
[pid 22243] chdir("./21672")            = 0
[pid 22243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22243] setpgid(0, 0)               = 0
[pid 22243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22243] write(3, "1000", 4)         = 4
[pid 22243] close(3)                    = 0
[pid 22243] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22243] write(1, "executing program\n", 18executing program
) = 18
[pid 22243] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22243] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22243] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22243] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22243] exit_group(0)               = ?
[pid 22243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22243, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21672", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21672", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21672/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21672/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21672/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21672")                        = 0
mkdir("./21673", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22244
./strace-static-x86_64: Process 22244 attached
[pid 22244] set_robust_list(0x55557a32b660, 24) = 0
[pid 22244] chdir("./21673")            = 0
[pid 22244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22244] setpgid(0, 0)               = 0
[pid 22244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22244] write(3, "1000", 4)         = 4
[pid 22244] close(3)                    = 0
[pid 22244] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22244] write(1, "executing program\n", 18) = 18
[pid 22244] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22244] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22244] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22244] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22244] exit_group(0)               = ?
[pid 22244] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22244, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21673", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21673", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21673/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21673/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21673/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21673")                        = 0
mkdir("./21674", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22245
./strace-static-x86_64: Process 22245 attached
[pid 22245] set_robust_list(0x55557a32b660, 24) = 0
[pid 22245] chdir("./21674")            = 0
[pid 22245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22245] setpgid(0, 0)               = 0
[pid 22245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22245] write(3, "1000", 4)         = 4
[pid 22245] close(3)                    = 0
[pid 22245] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22245] write(1, "executing program\n", 18) = 18
[pid 22245] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22245] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22245] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22245] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22245] exit_group(0)               = ?
[pid 22245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22245, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21674", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21674", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21674/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21674/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21674/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21674")                        = 0
mkdir("./21675", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22246
./strace-static-x86_64: Process 22246 attached
[pid 22246] set_robust_list(0x55557a32b660, 24) = 0
[pid 22246] chdir("./21675")            = 0
[pid 22246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22246] setpgid(0, 0)               = 0
[pid 22246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22246] write(3, "1000", 4)         = 4
[pid 22246] close(3)                    = 0
[pid 22246] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22246] write(1, "executing program\n", 18executing program
) = 18
[pid 22246] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22246] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22246] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22246] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22246] exit_group(0)               = ?
[pid 22246] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22246, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21675", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21675", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21675/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21675/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21675/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21675")                        = 0
mkdir("./21676", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22247
./strace-static-x86_64: Process 22247 attached
[pid 22247] set_robust_list(0x55557a32b660, 24) = 0
[pid 22247] chdir("./21676")            = 0
[pid 22247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22247] setpgid(0, 0)               = 0
[pid 22247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22247] write(3, "1000", 4)         = 4
[pid 22247] close(3)                    = 0
[pid 22247] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22247] write(1, "executing program\n", 18) = 18
[pid 22247] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22247] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22247] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22247] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22247] exit_group(0)               = ?
[pid 22247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22247, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21676", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21676", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21676/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21676/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21676/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21676")                        = 0
mkdir("./21677", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22248
./strace-static-x86_64: Process 22248 attached
[pid 22248] set_robust_list(0x55557a32b660, 24) = 0
[pid 22248] chdir("./21677")            = 0
[pid 22248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22248] setpgid(0, 0)               = 0
[pid 22248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22248] write(3, "1000", 4)         = 4
[pid 22248] close(3)                    = 0
[pid 22248] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22248] write(1, "executing program\n", 18executing program
) = 18
[pid 22248] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22248] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22248] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22248] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22248] exit_group(0)               = ?
[pid 22248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22248, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21677", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21677", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21677/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21677/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21677/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21677")                        = 0
mkdir("./21678", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22249
./strace-static-x86_64: Process 22249 attached
[pid 22249] set_robust_list(0x55557a32b660, 24) = 0
[pid 22249] chdir("./21678")            = 0
[pid 22249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22249] setpgid(0, 0)               = 0
[pid 22249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22249] write(3, "1000", 4)         = 4
[pid 22249] close(3)                    = 0
[pid 22249] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22249] write(1, "executing program\n", 18executing program
) = 18
[pid 22249] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22249] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22249] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22249] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22249] exit_group(0)               = ?
[pid 22249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22249, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21678", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21678", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21678/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21678/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21678/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21678")                        = 0
mkdir("./21679", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22250
./strace-static-x86_64: Process 22250 attached
[pid 22250] set_robust_list(0x55557a32b660, 24) = 0
[pid 22250] chdir("./21679")            = 0
[pid 22250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22250] setpgid(0, 0)               = 0
[pid 22250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22250] write(3, "1000", 4)         = 4
[pid 22250] close(3)                    = 0
[pid 22250] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22250] write(1, "executing program\n", 18executing program
) = 18
[pid 22250] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22250] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22250] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22250] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22250] exit_group(0)               = ?
[pid 22250] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22250, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21679", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21679", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21679/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21679/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21679/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21679")                        = 0
mkdir("./21680", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22251
./strace-static-x86_64: Process 22251 attached
[pid 22251] set_robust_list(0x55557a32b660, 24) = 0
[pid 22251] chdir("./21680")            = 0
[pid 22251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22251] setpgid(0, 0)               = 0
[pid 22251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22251] write(3, "1000", 4)         = 4
[pid 22251] close(3)                    = 0
[pid 22251] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22251] write(1, "executing program\n", 18executing program
) = 18
[pid 22251] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22251] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22251] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22251] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22251] exit_group(0)               = ?
[pid 22251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22251, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21680", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21680", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21680/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21680/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21680/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21680")                        = 0
mkdir("./21681", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22252 attached
, child_tidptr=0x55557a32b650) = 22252
[pid 22252] set_robust_list(0x55557a32b660, 24) = 0
[pid 22252] chdir("./21681")            = 0
[pid 22252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22252] setpgid(0, 0)               = 0
[pid 22252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22252] write(3, "1000", 4)         = 4
[pid 22252] close(3)                    = 0
[pid 22252] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22252] write(1, "executing program\n", 18) = 18
[pid 22252] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22252] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22252] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22252] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22252] exit_group(0)               = ?
[pid 22252] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22252, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21681", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21681", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21681/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21681/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21681/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21681")                        = 0
mkdir("./21682", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22253
./strace-static-x86_64: Process 22253 attached
[pid 22253] set_robust_list(0x55557a32b660, 24) = 0
[pid 22253] chdir("./21682")            = 0
[pid 22253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22253] setpgid(0, 0)               = 0
[pid 22253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22253] write(3, "1000", 4)         = 4
[pid 22253] close(3)                    = 0
[pid 22253] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22253] write(1, "executing program\n", 18executing program
) = 18
[pid 22253] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22253] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22253] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22253] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22253] exit_group(0)               = ?
[pid 22253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22253, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21682", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21682", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21682/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21682/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21682/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21682")                        = 0
mkdir("./21683", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22254 attached
, child_tidptr=0x55557a32b650) = 22254
[pid 22254] set_robust_list(0x55557a32b660, 24) = 0
[pid 22254] chdir("./21683")            = 0
[pid 22254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22254] setpgid(0, 0)               = 0
[pid 22254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22254] write(3, "1000", 4)         = 4
[pid 22254] close(3)                    = 0
[pid 22254] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22254] write(1, "executing program\n", 18executing program
) = 18
[pid 22254] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22254] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22254] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22254] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22254] exit_group(0)               = ?
[pid 22254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22254, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21683", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21683", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21683/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21683/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21683/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21683")                        = 0
mkdir("./21684", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22255 attached
, child_tidptr=0x55557a32b650) = 22255
[pid 22255] set_robust_list(0x55557a32b660, 24) = 0
[pid 22255] chdir("./21684")            = 0
[pid 22255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22255] setpgid(0, 0)               = 0
[pid 22255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22255] write(3, "1000", 4)         = 4
[pid 22255] close(3)                    = 0
[pid 22255] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22255] write(1, "executing program\n", 18) = 18
[pid 22255] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22255] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22255] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22255] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22255] exit_group(0)               = ?
[pid 22255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22255, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21684", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21684", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21684/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21684/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21684/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21684")                        = 0
mkdir("./21685", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22256
./strace-static-x86_64: Process 22256 attached
[pid 22256] set_robust_list(0x55557a32b660, 24) = 0
[pid 22256] chdir("./21685")            = 0
[pid 22256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22256] setpgid(0, 0)               = 0
[pid 22256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22256] write(3, "1000", 4)         = 4
[pid 22256] close(3)                    = 0
[pid 22256] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22256] write(1, "executing program\n", 18executing program
) = 18
[pid 22256] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22256] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22256] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22256] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22256] exit_group(0)               = ?
[pid 22256] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22256, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21685", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21685", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21685/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21685/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21685/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21685")                        = 0
mkdir("./21686", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22257
./strace-static-x86_64: Process 22257 attached
[pid 22257] set_robust_list(0x55557a32b660, 24) = 0
[pid 22257] chdir("./21686")            = 0
[pid 22257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22257] setpgid(0, 0)               = 0
[pid 22257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22257] write(3, "1000", 4)         = 4
[pid 22257] close(3)                    = 0
[pid 22257] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22257] write(1, "executing program\n", 18executing program
) = 18
[pid 22257] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22257] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22257] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22257] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22257] exit_group(0)               = ?
[pid 22257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22257, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21686", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21686", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21686/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21686/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21686/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21686")                        = 0
mkdir("./21687", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22258 attached
, child_tidptr=0x55557a32b650) = 22258
[pid 22258] set_robust_list(0x55557a32b660, 24) = 0
[pid 22258] chdir("./21687")            = 0
[pid 22258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22258] setpgid(0, 0)               = 0
[pid 22258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22258] write(3, "1000", 4)         = 4
[pid 22258] close(3)                    = 0
[pid 22258] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22258] write(1, "executing program\n", 18executing program
) = 18
[pid 22258] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22258] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22258] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22258] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22258] exit_group(0)               = ?
[pid 22258] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22258, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21687", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21687", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21687/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21687/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21687/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21687")                        = 0
mkdir("./21688", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22259
./strace-static-x86_64: Process 22259 attached
[pid 22259] set_robust_list(0x55557a32b660, 24) = 0
[pid 22259] chdir("./21688")            = 0
[pid 22259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22259] setpgid(0, 0)               = 0
[pid 22259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22259] write(3, "1000", 4)         = 4
[pid 22259] close(3)                    = 0
[pid 22259] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22259] write(1, "executing program\n", 18executing program
) = 18
[pid 22259] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22259] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22259] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22259] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22259] exit_group(0)               = ?
[pid 22259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22259, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21688", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21688", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21688/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21688/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21688/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21688")                        = 0
mkdir("./21689", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22260
./strace-static-x86_64: Process 22260 attached
[pid 22260] set_robust_list(0x55557a32b660, 24) = 0
[pid 22260] chdir("./21689")            = 0
[pid 22260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22260] setpgid(0, 0)               = 0
[pid 22260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22260] write(3, "1000", 4)         = 4
[pid 22260] close(3)                    = 0
[pid 22260] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22260] write(1, "executing program\n", 18) = 18
[pid 22260] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22260] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22260] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22260] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22260] exit_group(0)               = ?
[pid 22260] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22260, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21689", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21689", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21689/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21689/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21689/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21689")                        = 0
mkdir("./21690", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22261 attached
, child_tidptr=0x55557a32b650) = 22261
[pid 22261] set_robust_list(0x55557a32b660, 24) = 0
[pid 22261] chdir("./21690")            = 0
[pid 22261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22261] setpgid(0, 0)               = 0
[pid 22261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22261] write(3, "1000", 4)         = 4
[pid 22261] close(3)                    = 0
[pid 22261] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22261] write(1, "executing program\n", 18executing program
) = 18
[pid 22261] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22261] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22261] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22261] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22261] exit_group(0)               = ?
[pid 22261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22261, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21690", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21690", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21690/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21690/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21690/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21690")                        = 0
mkdir("./21691", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22262
./strace-static-x86_64: Process 22262 attached
[pid 22262] set_robust_list(0x55557a32b660, 24) = 0
[pid 22262] chdir("./21691")            = 0
[pid 22262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22262] setpgid(0, 0)               = 0
[pid 22262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22262] write(3, "1000", 4)         = 4
[pid 22262] close(3)                    = 0
[pid 22262] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22262] write(1, "executing program\n", 18executing program
) = 18
[pid 22262] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22262] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22262] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22262] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22262] exit_group(0)               = ?
[pid 22262] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22262, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21691", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21691", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21691/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21691/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21691/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21691")                        = 0
mkdir("./21692", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22263
./strace-static-x86_64: Process 22263 attached
[pid 22263] set_robust_list(0x55557a32b660, 24) = 0
[pid 22263] chdir("./21692")            = 0
[pid 22263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22263] setpgid(0, 0)               = 0
[pid 22263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22263] write(3, "1000", 4)         = 4
[pid 22263] close(3)                    = 0
[pid 22263] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22263] write(1, "executing program\n", 18) = 18
[pid 22263] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22263] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22263] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22263] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22263] exit_group(0)               = ?
[pid 22263] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22263, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21692", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21692", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21692/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21692/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21692/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21692")                        = 0
mkdir("./21693", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22264
./strace-static-x86_64: Process 22264 attached
[pid 22264] set_robust_list(0x55557a32b660, 24) = 0
[pid 22264] chdir("./21693")            = 0
[pid 22264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22264] setpgid(0, 0)               = 0
[pid 22264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22264] write(3, "1000", 4)         = 4
[pid 22264] close(3)                    = 0
[pid 22264] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22264] write(1, "executing program\n", 18executing program
) = 18
[pid 22264] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22264] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22264] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22264] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22264] exit_group(0)               = ?
[pid 22264] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22264, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21693", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21693", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21693/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21693/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21693/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21693")                        = 0
mkdir("./21694", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22265
./strace-static-x86_64: Process 22265 attached
[pid 22265] set_robust_list(0x55557a32b660, 24) = 0
[pid 22265] chdir("./21694")            = 0
[pid 22265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22265] setpgid(0, 0)               = 0
[pid 22265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22265] write(3, "1000", 4)         = 4
[pid 22265] close(3)                    = 0
[pid 22265] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22265] write(1, "executing program\n", 18executing program
) = 18
[pid 22265] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22265] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22265] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22265] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22265] exit_group(0)               = ?
[pid 22265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22265, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21694", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21694", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21694/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21694/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21694/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21694")                        = 0
mkdir("./21695", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22266 attached
, child_tidptr=0x55557a32b650) = 22266
[pid 22266] set_robust_list(0x55557a32b660, 24) = 0
[pid 22266] chdir("./21695")            = 0
[pid 22266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22266] setpgid(0, 0)               = 0
[pid 22266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22266] write(3, "1000", 4)         = 4
[pid 22266] close(3)                    = 0
[pid 22266] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22266] write(1, "executing program\n", 18executing program
) = 18
[pid 22266] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22266] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22266] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22266] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22266] exit_group(0)               = ?
[pid 22266] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22266, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21695", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21695", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21695/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21695/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21695/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21695")                        = 0
mkdir("./21696", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22267
./strace-static-x86_64: Process 22267 attached
[pid 22267] set_robust_list(0x55557a32b660, 24) = 0
[pid 22267] chdir("./21696")            = 0
[pid 22267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22267] setpgid(0, 0)               = 0
[pid 22267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22267] write(3, "1000", 4)         = 4
[pid 22267] close(3)                    = 0
[pid 22267] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22267] write(1, "executing program\n", 18executing program
) = 18
[pid 22267] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22267] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22267] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22267] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22267] exit_group(0)               = ?
[pid 22267] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22267, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21696", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21696", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21696/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21696/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21696/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21696")                        = 0
mkdir("./21697", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22268
./strace-static-x86_64: Process 22268 attached
[pid 22268] set_robust_list(0x55557a32b660, 24) = 0
[pid 22268] chdir("./21697")            = 0
[pid 22268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22268] setpgid(0, 0)               = 0
[pid 22268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22268] write(3, "1000", 4)         = 4
[pid 22268] close(3)                    = 0
[pid 22268] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22268] write(1, "executing program\n", 18) = 18
[pid 22268] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22268] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22268] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22268] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22268] exit_group(0)               = ?
[pid 22268] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22268, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21697", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21697", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21697/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21697/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21697/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21697")                        = 0
mkdir("./21698", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22269 attached
, child_tidptr=0x55557a32b650) = 22269
[pid 22269] set_robust_list(0x55557a32b660, 24) = 0
[pid 22269] chdir("./21698")            = 0
[pid 22269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22269] setpgid(0, 0)               = 0
[pid 22269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22269] write(3, "1000", 4)         = 4
[pid 22269] close(3)                    = 0
[pid 22269] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22269] write(1, "executing program\n", 18executing program
) = 18
[pid 22269] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22269] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22269] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22269] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22269] exit_group(0)               = ?
[pid 22269] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22269, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21698", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21698", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21698/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21698/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21698/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21698")                        = 0
mkdir("./21699", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22270
./strace-static-x86_64: Process 22270 attached
[pid 22270] set_robust_list(0x55557a32b660, 24) = 0
[pid 22270] chdir("./21699")            = 0
[pid 22270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22270] setpgid(0, 0)               = 0
[pid 22270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22270] write(3, "1000", 4)         = 4
[pid 22270] close(3)                    = 0
[pid 22270] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22270] write(1, "executing program\n", 18) = 18
[pid 22270] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22270] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22270] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22270] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22270] exit_group(0)               = ?
[pid 22270] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22270, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21699", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21699", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21699/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21699/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21699/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21699")                        = 0
mkdir("./21700", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22271
./strace-static-x86_64: Process 22271 attached
[pid 22271] set_robust_list(0x55557a32b660, 24) = 0
[pid 22271] chdir("./21700")            = 0
[pid 22271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22271] setpgid(0, 0)               = 0
[pid 22271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22271] write(3, "1000", 4)         = 4
[pid 22271] close(3)                    = 0
[pid 22271] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22271] write(1, "executing program\n", 18executing program
) = 18
[pid 22271] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22271] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22271] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22271] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22271] exit_group(0)               = ?
[pid 22271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22271, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21700", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21700", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21700/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21700/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21700/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21700")                        = 0
mkdir("./21701", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22272 attached
, child_tidptr=0x55557a32b650) = 22272
[pid 22272] set_robust_list(0x55557a32b660, 24) = 0
[pid 22272] chdir("./21701")            = 0
[pid 22272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22272] setpgid(0, 0)               = 0
[pid 22272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22272] write(3, "1000", 4)         = 4
[pid 22272] close(3)                    = 0
[pid 22272] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22272] write(1, "executing program\n", 18executing program
) = 18
[pid 22272] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22272] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22272] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22272] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22272] exit_group(0)               = ?
[pid 22272] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22272, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21701", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21701", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21701/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21701/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21701/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21701")                        = 0
mkdir("./21702", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22273 attached
, child_tidptr=0x55557a32b650) = 22273
[pid 22273] set_robust_list(0x55557a32b660, 24) = 0
[pid 22273] chdir("./21702")            = 0
[pid 22273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22273] setpgid(0, 0)               = 0
[pid 22273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22273] write(3, "1000", 4)         = 4
[pid 22273] close(3)                    = 0
[pid 22273] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22273] write(1, "executing program\n", 18executing program
) = 18
[pid 22273] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22273] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22273] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22273] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22273] exit_group(0)               = ?
[pid 22273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22273, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21702", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21702", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21702/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21702/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21702/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21702")                        = 0
mkdir("./21703", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22274
./strace-static-x86_64: Process 22274 attached
[pid 22274] set_robust_list(0x55557a32b660, 24) = 0
[pid 22274] chdir("./21703")            = 0
[pid 22274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22274] setpgid(0, 0)               = 0
[pid 22274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22274] write(3, "1000", 4)         = 4
[pid 22274] close(3)                    = 0
[pid 22274] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22274] write(1, "executing program\n", 18) = 18
[pid 22274] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22274] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22274] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22274] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22274] exit_group(0)               = ?
[pid 22274] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22274, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21703", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21703", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21703/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21703/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21703/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21703")                        = 0
mkdir("./21704", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22275 attached
, child_tidptr=0x55557a32b650) = 22275
[pid 22275] set_robust_list(0x55557a32b660, 24) = 0
[pid 22275] chdir("./21704")            = 0
[pid 22275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22275] setpgid(0, 0)               = 0
[pid 22275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22275] write(3, "1000", 4)         = 4
[pid 22275] close(3)                    = 0
[pid 22275] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22275] write(1, "executing program\n", 18executing program
) = 18
[pid 22275] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22275] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22275] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22275] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22275] exit_group(0)               = ?
[pid 22275] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22275, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21704", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21704", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21704/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21704/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21704/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21704")                        = 0
mkdir("./21705", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22276
./strace-static-x86_64: Process 22276 attached
[pid 22276] set_robust_list(0x55557a32b660, 24) = 0
[pid 22276] chdir("./21705")            = 0
[pid 22276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22276] setpgid(0, 0)               = 0
[pid 22276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22276] write(3, "1000", 4)         = 4
[pid 22276] close(3)                    = 0
[pid 22276] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22276] write(1, "executing program\n", 18) = 18
[pid 22276] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22276] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22276] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22276] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22276] exit_group(0)               = ?
[pid 22276] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22276, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21705", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21705", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21705/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21705/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21705/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21705")                        = 0
mkdir("./21706", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22278
./strace-static-x86_64: Process 22278 attached
[pid 22278] set_robust_list(0x55557a32b660, 24) = 0
[pid 22278] chdir("./21706")            = 0
[pid 22278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22278] setpgid(0, 0)               = 0
[pid 22278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22278] write(3, "1000", 4)         = 4
[pid 22278] close(3)                    = 0
[pid 22278] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22278] write(1, "executing program\n", 18executing program
) = 18
[pid 22278] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22278] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22278] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22278] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22278] exit_group(0)               = ?
[pid 22278] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22278, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21706", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21706", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21706/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21706/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21706/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21706")                        = 0
mkdir("./21707", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22279 attached
, child_tidptr=0x55557a32b650) = 22279
[pid 22279] set_robust_list(0x55557a32b660, 24) = 0
[pid 22279] chdir("./21707")            = 0
[pid 22279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22279] setpgid(0, 0)               = 0
[pid 22279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22279] write(3, "1000", 4)         = 4
[pid 22279] close(3)                    = 0
[pid 22279] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22279] write(1, "executing program\n", 18) = 18
[pid 22279] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22279] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22279] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22279] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22279] exit_group(0)               = ?
[pid 22279] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22279, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21707", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21707", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21707/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21707/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21707/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21707")                        = 0
mkdir("./21708", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22280 attached
, child_tidptr=0x55557a32b650) = 22280
[pid 22280] set_robust_list(0x55557a32b660, 24) = 0
[pid 22280] chdir("./21708")            = 0
[pid 22280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22280] setpgid(0, 0)               = 0
[pid 22280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22280] write(3, "1000", 4)         = 4
[pid 22280] close(3)                    = 0
[pid 22280] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22280] write(1, "executing program\n", 18executing program
) = 18
[pid 22280] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22280] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22280] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22280] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22280] exit_group(0)               = ?
[pid 22280] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22280, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21708", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21708", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21708/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21708/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21708/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21708")                        = 0
mkdir("./21709", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22281
./strace-static-x86_64: Process 22281 attached
[pid 22281] set_robust_list(0x55557a32b660, 24) = 0
[pid 22281] chdir("./21709")            = 0
[pid 22281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22281] setpgid(0, 0)               = 0
[pid 22281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22281] write(3, "1000", 4)         = 4
[pid 22281] close(3)                    = 0
[pid 22281] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22281] write(1, "executing program\n", 18executing program
) = 18
[pid 22281] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22281] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22281] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22281] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22281] exit_group(0)               = ?
[pid 22281] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22281, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21709", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21709", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21709/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21709/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21709/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21709")                        = 0
mkdir("./21710", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22282 attached
, child_tidptr=0x55557a32b650) = 22282
[pid 22282] set_robust_list(0x55557a32b660, 24) = 0
[pid 22282] chdir("./21710")            = 0
[pid 22282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22282] setpgid(0, 0)               = 0
[pid 22282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22282] write(3, "1000", 4)         = 4
[pid 22282] close(3)                    = 0
[pid 22282] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22282] write(1, "executing program\n", 18) = 18
[pid 22282] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22282] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22282] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22282] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22282] exit_group(0)               = ?
[pid 22282] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22282, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21710", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21710", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21710/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21710/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21710/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21710")                        = 0
mkdir("./21711", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22283 attached
, child_tidptr=0x55557a32b650) = 22283
[pid 22283] set_robust_list(0x55557a32b660, 24) = 0
[pid 22283] chdir("./21711")            = 0
[pid 22283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22283] setpgid(0, 0)               = 0
[pid 22283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22283] write(3, "1000", 4)         = 4
[pid 22283] close(3)                    = 0
[pid 22283] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22283] write(1, "executing program\n", 18executing program
) = 18
[pid 22283] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22283] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22283] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22283] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22283] exit_group(0)               = ?
[pid 22283] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22283, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21711", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21711", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21711/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21711/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21711/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21711")                        = 0
mkdir("./21712", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22284 attached
 <unfinished ...>
[pid 22284] set_robust_list(0x55557a32b660, 24) = 0
[pid 22284] chdir("./21712")            = 0
[pid 22284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22284] setpgid(0, 0)               = 0
[pid 22284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22284] write(3, "1000", 4)         = 4
[pid 22284] close(3)                    = 0
[pid 22284] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22284
[pid 22284] <... symlink resumed>)      = 0
[pid 22284] write(1, "executing program\n", 18executing program
) = 18
[pid 22284] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22284] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22284] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22284] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22284] exit_group(0)               = ?
[pid 22284] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22284, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21712", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21712", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21712/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21712/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21712/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21712")                        = 0
mkdir("./21713", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22285
./strace-static-x86_64: Process 22285 attached
[pid 22285] set_robust_list(0x55557a32b660, 24) = 0
[pid 22285] chdir("./21713")            = 0
[pid 22285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22285] setpgid(0, 0)               = 0
[pid 22285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22285] write(3, "1000", 4)         = 4
[pid 22285] close(3)                    = 0
[pid 22285] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22285] write(1, "executing program\n", 18) = 18
[pid 22285] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22285] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22285] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22285] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22285] exit_group(0)               = ?
[pid 22285] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22285, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21713", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21713", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21713/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21713/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21713/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21713")                        = 0
mkdir("./21714", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22286
./strace-static-x86_64: Process 22286 attached
[pid 22286] set_robust_list(0x55557a32b660, 24) = 0
[pid 22286] chdir("./21714")            = 0
[pid 22286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22286] setpgid(0, 0)               = 0
[pid 22286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22286] write(3, "1000", 4)         = 4
[pid 22286] close(3)                    = 0
[pid 22286] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22286] write(1, "executing program\n", 18) = 18
[pid 22286] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22286] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22286] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22286] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22286] exit_group(0)               = ?
[pid 22286] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22286, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21714", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21714", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21714/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21714/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21714/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21714")                        = 0
mkdir("./21715", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22287
./strace-static-x86_64: Process 22287 attached
[pid 22287] set_robust_list(0x55557a32b660, 24) = 0
[pid 22287] chdir("./21715")            = 0
[pid 22287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22287] setpgid(0, 0)               = 0
[pid 22287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22287] write(3, "1000", 4)         = 4
[pid 22287] close(3)                    = 0
[pid 22287] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22287] write(1, "executing program\n", 18) = 18
[pid 22287] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22287] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22287] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22287] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22287] exit_group(0)               = ?
[pid 22287] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22287, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21715", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21715", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21715/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21715/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21715/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21715")                        = 0
mkdir("./21716", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22288 attached
, child_tidptr=0x55557a32b650) = 22288
[pid 22288] set_robust_list(0x55557a32b660, 24) = 0
[pid 22288] chdir("./21716")            = 0
[pid 22288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22288] setpgid(0, 0)               = 0
[pid 22288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22288] write(3, "1000", 4)         = 4
[pid 22288] close(3)                    = 0
[pid 22288] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22288] write(1, "executing program\n", 18executing program
) = 18
[pid 22288] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22288] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22288] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22288] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22288] exit_group(0)               = ?
[pid 22288] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22288, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21716", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21716", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21716/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21716/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21716/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21716")                        = 0
mkdir("./21717", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22289
./strace-static-x86_64: Process 22289 attached
[pid 22289] set_robust_list(0x55557a32b660, 24) = 0
[pid 22289] chdir("./21717")            = 0
[pid 22289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22289] setpgid(0, 0)               = 0
[pid 22289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22289] write(3, "1000", 4)         = 4
[pid 22289] close(3)                    = 0
[pid 22289] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22289] write(1, "executing program\n", 18executing program
) = 18
[pid 22289] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22289] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22289] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22289] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22289] exit_group(0)               = ?
[pid 22289] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22289, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21717", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21717", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21717/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21717/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21717/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21717")                        = 0
mkdir("./21718", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22290
./strace-static-x86_64: Process 22290 attached
[pid 22290] set_robust_list(0x55557a32b660, 24) = 0
[pid 22290] chdir("./21718")            = 0
[pid 22290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22290] setpgid(0, 0)               = 0
[pid 22290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22290] write(3, "1000", 4)         = 4
[pid 22290] close(3)                    = 0
[pid 22290] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22290] write(1, "executing program\n", 18executing program
) = 18
[pid 22290] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22290] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22290] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22290] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22290] exit_group(0)               = ?
[pid 22290] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22290, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21718", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21718", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21718/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21718/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21718/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21718")                        = 0
mkdir("./21719", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22291
./strace-static-x86_64: Process 22291 attached
[pid 22291] set_robust_list(0x55557a32b660, 24) = 0
[pid 22291] chdir("./21719")            = 0
[pid 22291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22291] setpgid(0, 0)               = 0
[pid 22291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22291] write(3, "1000", 4)         = 4
[pid 22291] close(3)                    = 0
[pid 22291] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22291] write(1, "executing program\n", 18executing program
) = 18
[pid 22291] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22291] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22291] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22291] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22291] exit_group(0)               = ?
[pid 22291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22291, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21719", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21719", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21719/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21719/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21719/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21719")                        = 0
mkdir("./21720", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22292 attached
, child_tidptr=0x55557a32b650) = 22292
[pid 22292] set_robust_list(0x55557a32b660, 24) = 0
[pid 22292] chdir("./21720")            = 0
[pid 22292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22292] setpgid(0, 0)               = 0
[pid 22292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22292] write(3, "1000", 4)         = 4
[pid 22292] close(3)                    = 0
[pid 22292] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22292] write(1, "executing program\n", 18executing program
) = 18
[pid 22292] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22292] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22292] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22292] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22292] exit_group(0)               = ?
[pid 22292] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22292, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21720", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21720", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21720/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21720/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21720/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21720")                        = 0
mkdir("./21721", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22293
./strace-static-x86_64: Process 22293 attached
[pid 22293] set_robust_list(0x55557a32b660, 24) = 0
[pid 22293] chdir("./21721")            = 0
[pid 22293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22293] setpgid(0, 0)               = 0
[pid 22293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22293] write(3, "1000", 4)         = 4
[pid 22293] close(3)                    = 0
[pid 22293] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22293] write(1, "executing program\n", 18executing program
) = 18
[pid 22293] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22293] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22293] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22293] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22293] exit_group(0)               = ?
[pid 22293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22293, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21721", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21721", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21721/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21721/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21721/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21721")                        = 0
mkdir("./21722", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22294 attached
, child_tidptr=0x55557a32b650) = 22294
[pid 22294] set_robust_list(0x55557a32b660, 24) = 0
[pid 22294] chdir("./21722")            = 0
[pid 22294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22294] setpgid(0, 0)               = 0
[pid 22294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22294] write(3, "1000", 4)         = 4
[pid 22294] close(3)                    = 0
[pid 22294] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22294] write(1, "executing program\n", 18executing program
) = 18
[pid 22294] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22294] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22294] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22294] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22294] exit_group(0)               = ?
[pid 22294] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22294, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21722", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21722", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21722/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21722/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21722/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21722")                        = 0
mkdir("./21723", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22295
./strace-static-x86_64: Process 22295 attached
[pid 22295] set_robust_list(0x55557a32b660, 24) = 0
[pid 22295] chdir("./21723")            = 0
[pid 22295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22295] setpgid(0, 0)               = 0
[pid 22295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22295] write(3, "1000", 4)         = 4
[pid 22295] close(3)                    = 0
[pid 22295] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22295] write(1, "executing program\n", 18) = 18
[pid 22295] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22295] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22295] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22295] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22295] exit_group(0)               = ?
[pid 22295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22295, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21723", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21723", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21723/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21723/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21723/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21723")                        = 0
mkdir("./21724", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22296 attached
, child_tidptr=0x55557a32b650) = 22296
[pid 22296] set_robust_list(0x55557a32b660, 24) = 0
[pid 22296] chdir("./21724")            = 0
[pid 22296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22296] setpgid(0, 0)               = 0
[pid 22296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22296] write(3, "1000", 4)         = 4
[pid 22296] close(3)                    = 0
[pid 22296] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22296] write(1, "executing program\n", 18executing program
) = 18
[pid 22296] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22296] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22296] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22296] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22296] exit_group(0)               = ?
[pid 22296] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22296, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21724", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21724", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21724/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21724/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21724/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21724")                        = 0
mkdir("./21725", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22297
./strace-static-x86_64: Process 22297 attached
[pid 22297] set_robust_list(0x55557a32b660, 24) = 0
[pid 22297] chdir("./21725")            = 0
[pid 22297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22297] setpgid(0, 0)               = 0
[pid 22297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22297] write(3, "1000", 4)         = 4
[pid 22297] close(3)                    = 0
[pid 22297] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22297] write(1, "executing program\n", 18executing program
) = 18
[pid 22297] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22297] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22297] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22297] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22297] exit_group(0)               = ?
[pid 22297] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22297, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21725", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21725", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21725/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21725/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21725/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21725")                        = 0
mkdir("./21726", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22298
./strace-static-x86_64: Process 22298 attached
[pid 22298] set_robust_list(0x55557a32b660, 24) = 0
[pid 22298] chdir("./21726")            = 0
[pid 22298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22298] setpgid(0, 0)               = 0
[pid 22298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22298] write(3, "1000", 4)         = 4
[pid 22298] close(3)                    = 0
[pid 22298] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22298] write(1, "executing program\n", 18) = 18
[pid 22298] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22298] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22298] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22298] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22298] exit_group(0)               = ?
[pid 22298] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22298, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21726", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21726", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21726/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21726/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21726/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21726")                        = 0
mkdir("./21727", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22299
./strace-static-x86_64: Process 22299 attached
[pid 22299] set_robust_list(0x55557a32b660, 24) = 0
[pid 22299] chdir("./21727")            = 0
[pid 22299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22299] setpgid(0, 0)               = 0
[pid 22299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22299] write(3, "1000", 4)         = 4
[pid 22299] close(3)                    = 0
[pid 22299] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22299] write(1, "executing program\n", 18) = 18
[pid 22299] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22299] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22299] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22299] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22299] exit_group(0)               = ?
[pid 22299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22299, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21727", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21727", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21727/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21727/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21727/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21727")                        = 0
mkdir("./21728", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22300 attached
, child_tidptr=0x55557a32b650) = 22300
[pid 22300] set_robust_list(0x55557a32b660, 24) = 0
[pid 22300] chdir("./21728")            = 0
[pid 22300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22300] setpgid(0, 0)               = 0
[pid 22300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22300] write(3, "1000", 4)         = 4
[pid 22300] close(3)                    = 0
[pid 22300] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22300] write(1, "executing program\n", 18executing program
) = 18
[pid 22300] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22300] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22300] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22300] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22300] exit_group(0)               = ?
[pid 22300] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22300, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21728", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21728", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21728/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21728/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21728/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21728")                        = 0
mkdir("./21729", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22301
./strace-static-x86_64: Process 22301 attached
[pid 22301] set_robust_list(0x55557a32b660, 24) = 0
[pid 22301] chdir("./21729")            = 0
[pid 22301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22301] setpgid(0, 0)               = 0
[pid 22301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22301] write(3, "1000", 4)         = 4
[pid 22301] close(3)                    = 0
[pid 22301] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22301] write(1, "executing program\n", 18executing program
) = 18
[pid 22301] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22301] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22301] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22301] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22301] exit_group(0)               = ?
[pid 22301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22301, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21729", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21729", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21729/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21729/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21729/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21729")                        = 0
mkdir("./21730", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22302 attached
 <unfinished ...>
[pid 22302] set_robust_list(0x55557a32b660, 24) = 0
[pid 22302] chdir("./21730" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22302
[pid 22302] <... chdir resumed>)        = 0
[pid 22302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22302] setpgid(0, 0)               = 0
[pid 22302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22302] write(3, "1000", 4)         = 4
[pid 22302] close(3)                    = 0
[pid 22302] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22302] write(1, "executing program\n", 18) = 18
[pid 22302] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22302] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22302] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22302] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22302] exit_group(0)               = ?
[pid 22302] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22302, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21730", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21730", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21730/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21730/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21730/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21730")                        = 0
mkdir("./21731", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22303
./strace-static-x86_64: Process 22303 attached
[pid 22303] set_robust_list(0x55557a32b660, 24) = 0
[pid 22303] chdir("./21731")            = 0
[pid 22303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22303] setpgid(0, 0)               = 0
[pid 22303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22303] write(3, "1000", 4)         = 4
[pid 22303] close(3)                    = 0
[pid 22303] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22303] write(1, "executing program\n", 18executing program
) = 18
[pid 22303] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22303] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22303] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22303] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22303] exit_group(0)               = ?
[pid 22303] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22303, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21731", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21731", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21731/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21731/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21731/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21731")                        = 0
mkdir("./21732", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22304 attached
, child_tidptr=0x55557a32b650) = 22304
[pid 22304] set_robust_list(0x55557a32b660, 24) = 0
[pid 22304] chdir("./21732")            = 0
[pid 22304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22304] setpgid(0, 0)               = 0
[pid 22304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22304] write(3, "1000", 4)         = 4
[pid 22304] close(3)                    = 0
[pid 22304] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22304] write(1, "executing program\n", 18executing program
) = 18
[pid 22304] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22304] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22304] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22304] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22304] exit_group(0)               = ?
[pid 22304] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22304, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21732", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21732", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21732/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21732/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21732/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21732")                        = 0
mkdir("./21733", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22305
./strace-static-x86_64: Process 22305 attached
[pid 22305] set_robust_list(0x55557a32b660, 24) = 0
[pid 22305] chdir("./21733")            = 0
[pid 22305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22305] setpgid(0, 0)               = 0
[pid 22305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22305] write(3, "1000", 4)         = 4
[pid 22305] close(3)                    = 0
[pid 22305] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22305] write(1, "executing program\n", 18executing program
) = 18
[pid 22305] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22305] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22305] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22305] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22305] exit_group(0)               = ?
[pid 22305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22305, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21733", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21733", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21733/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21733/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21733/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21733")                        = 0
mkdir("./21734", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22306
./strace-static-x86_64: Process 22306 attached
[pid 22306] set_robust_list(0x55557a32b660, 24) = 0
[pid 22306] chdir("./21734")            = 0
[pid 22306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22306] setpgid(0, 0)               = 0
[pid 22306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22306] write(3, "1000", 4)         = 4
[pid 22306] close(3)                    = 0
[pid 22306] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22306] write(1, "executing program\n", 18executing program
) = 18
[pid 22306] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22306] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22306] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22306] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22306] exit_group(0)               = ?
[pid 22306] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22306, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21734", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21734", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21734/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21734/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21734/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21734")                        = 0
mkdir("./21735", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22307 attached
, child_tidptr=0x55557a32b650) = 22307
[pid 22307] set_robust_list(0x55557a32b660, 24) = 0
[pid 22307] chdir("./21735")            = 0
[pid 22307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22307] setpgid(0, 0)               = 0
[pid 22307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22307] write(3, "1000", 4)         = 4
[pid 22307] close(3)                    = 0
[pid 22307] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22307] write(1, "executing program\n", 18executing program
) = 18
[pid 22307] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22307] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22307] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22307] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22307] exit_group(0)               = ?
[pid 22307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22307, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21735", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21735", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21735/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21735/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21735/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21735")                        = 0
mkdir("./21736", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22308
./strace-static-x86_64: Process 22308 attached
[pid 22308] set_robust_list(0x55557a32b660, 24) = 0
[pid 22308] chdir("./21736")            = 0
[pid 22308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22308] setpgid(0, 0)               = 0
[pid 22308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22308] write(3, "1000", 4)         = 4
[pid 22308] close(3)                    = 0
[pid 22308] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22308] write(1, "executing program\n", 18executing program
) = 18
[pid 22308] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22308] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22308] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22308] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22308] exit_group(0)               = ?
[pid 22308] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22308, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21736", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21736", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21736/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21736/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21736/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21736")                        = 0
mkdir("./21737", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22309
./strace-static-x86_64: Process 22309 attached
[pid 22309] set_robust_list(0x55557a32b660, 24) = 0
[pid 22309] chdir("./21737")            = 0
[pid 22309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22309] setpgid(0, 0)               = 0
[pid 22309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22309] write(3, "1000", 4)         = 4
[pid 22309] close(3)                    = 0
[pid 22309] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22309] write(1, "executing program\n", 18executing program
) = 18
[pid 22309] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22309] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22309] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22309] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22309] exit_group(0)               = ?
[pid 22309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22309, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21737", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21737", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21737/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21737/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21737/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21737")                        = 0
mkdir("./21738", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22310 attached
, child_tidptr=0x55557a32b650) = 22310
[pid 22310] set_robust_list(0x55557a32b660, 24) = 0
[pid 22310] chdir("./21738")            = 0
[pid 22310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22310] setpgid(0, 0)               = 0
[pid 22310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22310] write(3, "1000", 4)         = 4
[pid 22310] close(3)                    = 0
[pid 22310] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22310] write(1, "executing program\n", 18executing program
) = 18
[pid 22310] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22310] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22310] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22310] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22310] exit_group(0)               = ?
[pid 22310] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22310, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21738", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21738", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21738/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21738/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21738/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21738")                        = 0
mkdir("./21739", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22311 attached
 <unfinished ...>
[pid 22311] set_robust_list(0x55557a32b660, 24) = 0
[pid 22311] chdir("./21739" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22311
[pid 22311] <... chdir resumed>)        = 0
[pid 22311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22311] setpgid(0, 0)               = 0
[pid 22311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22311] write(3, "1000", 4)         = 4
[pid 22311] close(3)                    = 0
[pid 22311] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22311] write(1, "executing program\n", 18executing program
) = 18
[pid 22311] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22311] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22311] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22311] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22311] exit_group(0)               = ?
[pid 22311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22311, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21739", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21739", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21739/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21739/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21739/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21739")                        = 0
mkdir("./21740", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22312
./strace-static-x86_64: Process 22312 attached
[pid 22312] set_robust_list(0x55557a32b660, 24) = 0
[pid 22312] chdir("./21740")            = 0
[pid 22312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22312] setpgid(0, 0)               = 0
[pid 22312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22312] write(3, "1000", 4)         = 4
[pid 22312] close(3)                    = 0
[pid 22312] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22312] write(1, "executing program\n", 18executing program
) = 18
[pid 22312] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22312] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22312] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22312] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22312] exit_group(0)               = ?
[pid 22312] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22312, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21740", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21740", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21740/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21740/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21740/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21740")                        = 0
mkdir("./21741", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22313
./strace-static-x86_64: Process 22313 attached
[pid 22313] set_robust_list(0x55557a32b660, 24) = 0
[pid 22313] chdir("./21741")            = 0
[pid 22313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22313] setpgid(0, 0)               = 0
[pid 22313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22313] write(3, "1000", 4)         = 4
[pid 22313] close(3)                    = 0
[pid 22313] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22313] write(1, "executing program\n", 18executing program
) = 18
[pid 22313] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22313] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22313] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22313] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22313] exit_group(0)               = ?
[pid 22313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22313, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21741", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21741", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21741/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21741/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21741/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21741")                        = 0
mkdir("./21742", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22314
./strace-static-x86_64: Process 22314 attached
[pid 22314] set_robust_list(0x55557a32b660, 24) = 0
[pid 22314] chdir("./21742")            = 0
[pid 22314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22314] setpgid(0, 0)               = 0
[pid 22314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22314] write(3, "1000", 4)         = 4
[pid 22314] close(3)                    = 0
[pid 22314] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22314] write(1, "executing program\n", 18executing program
) = 18
[pid 22314] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22314] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22314] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22314] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22314] exit_group(0)               = ?
[pid 22314] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22314, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21742", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21742", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21742/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21742/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21742/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21742")                        = 0
mkdir("./21743", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22315
./strace-static-x86_64: Process 22315 attached
[pid 22315] set_robust_list(0x55557a32b660, 24) = 0
[pid 22315] chdir("./21743")            = 0
[pid 22315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22315] setpgid(0, 0)               = 0
[pid 22315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22315] write(3, "1000", 4)         = 4
[pid 22315] close(3)                    = 0
[pid 22315] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22315] write(1, "executing program\n", 18executing program
) = 18
[pid 22315] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22315] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22315] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22315] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22315] exit_group(0)               = ?
[pid 22315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22315, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21743", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21743", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21743/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21743/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21743/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21743")                        = 0
mkdir("./21744", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22316
./strace-static-x86_64: Process 22316 attached
[pid 22316] set_robust_list(0x55557a32b660, 24) = 0
[pid 22316] chdir("./21744")            = 0
[pid 22316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22316] setpgid(0, 0)               = 0
[pid 22316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22316] write(3, "1000", 4)         = 4
[pid 22316] close(3)                    = 0
[pid 22316] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22316] write(1, "executing program\n", 18executing program
) = 18
[pid 22316] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22316] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22316] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22316] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22316] exit_group(0)               = ?
[pid 22316] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22316, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21744", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21744", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21744/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21744/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21744/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21744")                        = 0
mkdir("./21745", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22317
./strace-static-x86_64: Process 22317 attached
[pid 22317] set_robust_list(0x55557a32b660, 24) = 0
[pid 22317] chdir("./21745")            = 0
[pid 22317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22317] setpgid(0, 0)               = 0
[pid 22317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22317] write(3, "1000", 4)         = 4
[pid 22317] close(3)                    = 0
[pid 22317] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22317] write(1, "executing program\n", 18executing program
) = 18
[pid 22317] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22317] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22317] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22317] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22317] exit_group(0)               = ?
[pid 22317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22317, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21745", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21745", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21745/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21745/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21745/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21745")                        = 0
mkdir("./21746", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22318
./strace-static-x86_64: Process 22318 attached
[pid 22318] set_robust_list(0x55557a32b660, 24) = 0
[pid 22318] chdir("./21746")            = 0
[pid 22318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22318] setpgid(0, 0)               = 0
[pid 22318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22318] write(3, "1000", 4)         = 4
[pid 22318] close(3)                    = 0
[pid 22318] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22318] write(1, "executing program\n", 18executing program
) = 18
[pid 22318] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22318] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22318] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22318] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22318] exit_group(0)               = ?
[pid 22318] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22318, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21746", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21746", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21746/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21746/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21746/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21746")                        = 0
mkdir("./21747", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22319
./strace-static-x86_64: Process 22319 attached
[pid 22319] set_robust_list(0x55557a32b660, 24) = 0
[pid 22319] chdir("./21747")            = 0
[pid 22319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22319] setpgid(0, 0)               = 0
[pid 22319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22319] write(3, "1000", 4)         = 4
[pid 22319] close(3)                    = 0
[pid 22319] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22319] write(1, "executing program\n", 18executing program
) = 18
[pid 22319] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22319] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22319] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22319] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22319] exit_group(0)               = ?
[pid 22319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22319, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21747", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21747", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21747/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21747/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21747/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21747")                        = 0
mkdir("./21748", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22320
./strace-static-x86_64: Process 22320 attached
[pid 22320] set_robust_list(0x55557a32b660, 24) = 0
[pid 22320] chdir("./21748")            = 0
[pid 22320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22320] setpgid(0, 0)               = 0
[pid 22320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22320] write(3, "1000", 4)         = 4
[pid 22320] close(3)                    = 0
[pid 22320] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22320] write(1, "executing program\n", 18executing program
) = 18
[pid 22320] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22320] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22320] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22320] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22320] exit_group(0)               = ?
[pid 22320] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22320, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21748", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21748", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21748/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21748/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21748/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21748")                        = 0
mkdir("./21749", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22321
./strace-static-x86_64: Process 22321 attached
[pid 22321] set_robust_list(0x55557a32b660, 24) = 0
[pid 22321] chdir("./21749")            = 0
[pid 22321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22321] setpgid(0, 0)               = 0
[pid 22321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22321] write(3, "1000", 4)         = 4
[pid 22321] close(3)                    = 0
executing program
[pid 22321] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22321] write(1, "executing program\n", 18) = 18
[pid 22321] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22321] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22321] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22321] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22321] exit_group(0)               = ?
[pid 22321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22321, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21749", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21749", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21749/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21749/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21749/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21749")                        = 0
mkdir("./21750", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22322
./strace-static-x86_64: Process 22322 attached
[pid 22322] set_robust_list(0x55557a32b660, 24) = 0
[pid 22322] chdir("./21750")            = 0
[pid 22322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22322] setpgid(0, 0)               = 0
[pid 22322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22322] write(3, "1000", 4)         = 4
[pid 22322] close(3)                    = 0
[pid 22322] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22322] write(1, "executing program\n", 18executing program
) = 18
[pid 22322] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22322] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22322] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22322] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22322] exit_group(0)               = ?
[pid 22322] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22322, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21750", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21750", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21750/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21750/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21750/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21750")                        = 0
mkdir("./21751", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22323
./strace-static-x86_64: Process 22323 attached
[pid 22323] set_robust_list(0x55557a32b660, 24) = 0
[pid 22323] chdir("./21751")            = 0
[pid 22323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22323] setpgid(0, 0)               = 0
[pid 22323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22323] write(3, "1000", 4)         = 4
[pid 22323] close(3)                    = 0
[pid 22323] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22323] write(1, "executing program\n", 18) = 18
[pid 22323] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22323] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22323] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22323] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22323] exit_group(0)               = ?
[pid 22323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22323, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21751", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21751", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21751/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21751/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21751/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21751")                        = 0
mkdir("./21752", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22324
./strace-static-x86_64: Process 22324 attached
[pid 22324] set_robust_list(0x55557a32b660, 24) = 0
[pid 22324] chdir("./21752")            = 0
[pid 22324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22324] setpgid(0, 0)               = 0
[pid 22324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22324] write(3, "1000", 4)         = 4
[pid 22324] close(3)                    = 0
[pid 22324] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22324] write(1, "executing program\n", 18executing program
) = 18
[pid 22324] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22324] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22324] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22324] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22324] exit_group(0)               = ?
[pid 22324] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22324, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21752", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21752", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21752/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21752/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21752/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21752")                        = 0
mkdir("./21753", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22325
./strace-static-x86_64: Process 22325 attached
[pid 22325] set_robust_list(0x55557a32b660, 24) = 0
[pid 22325] chdir("./21753")            = 0
[pid 22325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22325] setpgid(0, 0)               = 0
[pid 22325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22325] write(3, "1000", 4)         = 4
[pid 22325] close(3)                    = 0
[pid 22325] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22325] write(1, "executing program\n", 18executing program
) = 18
[pid 22325] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22325] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22325] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22325] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22325] exit_group(0)               = ?
[pid 22325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22325, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21753", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21753", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21753/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21753/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21753/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21753")                        = 0
mkdir("./21754", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22326
./strace-static-x86_64: Process 22326 attached
[pid 22326] set_robust_list(0x55557a32b660, 24) = 0
[pid 22326] chdir("./21754")            = 0
[pid 22326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22326] setpgid(0, 0)               = 0
[pid 22326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22326] write(3, "1000", 4)         = 4
[pid 22326] close(3)                    = 0
executing program
[pid 22326] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22326] write(1, "executing program\n", 18) = 18
[pid 22326] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22326] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22326] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22326] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22326] exit_group(0)               = ?
[pid 22326] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22326, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21754", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21754", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21754/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21754/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21754/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21754")                        = 0
mkdir("./21755", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22327 attached
, child_tidptr=0x55557a32b650) = 22327
[pid 22327] set_robust_list(0x55557a32b660, 24) = 0
[pid 22327] chdir("./21755")            = 0
[pid 22327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22327] setpgid(0, 0)               = 0
[pid 22327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22327] write(3, "1000", 4)         = 4
[pid 22327] close(3)                    = 0
[pid 22327] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22327] write(1, "executing program\n", 18executing program
) = 18
[pid 22327] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22327] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22327] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22327] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22327] exit_group(0)               = ?
[pid 22327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22327, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21755", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21755", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21755/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21755/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21755/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21755")                        = 0
mkdir("./21756", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22328 attached
 <unfinished ...>
[pid 22328] set_robust_list(0x55557a32b660, 24) = 0
[pid 22328] chdir("./21756")            = 0
[pid 22328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22328] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22328
[pid 22328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22328] write(3, "1000", 4)         = 4
[pid 22328] close(3)                    = 0
[pid 22328] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22328] write(1, "executing program\n", 18) = 18
[pid 22328] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22328] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22328] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22328] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22328] exit_group(0)               = ?
[pid 22328] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22328, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21756", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21756", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21756/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21756/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21756/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21756")                        = 0
mkdir("./21757", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22329
./strace-static-x86_64: Process 22329 attached
[pid 22329] set_robust_list(0x55557a32b660, 24) = 0
[pid 22329] chdir("./21757")            = 0
[pid 22329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22329] setpgid(0, 0)               = 0
[pid 22329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22329] write(3, "1000", 4)         = 4
[pid 22329] close(3)                    = 0
[pid 22329] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22329] write(1, "executing program\n", 18executing program
) = 18
[pid 22329] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22329] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22329] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22329] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22329] exit_group(0)               = ?
[pid 22329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22329, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21757", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21757", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21757/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21757/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21757/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21757")                        = 0
mkdir("./21758", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22330 attached
, child_tidptr=0x55557a32b650) = 22330
[pid 22330] set_robust_list(0x55557a32b660, 24) = 0
[pid 22330] chdir("./21758")            = 0
[pid 22330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22330] setpgid(0, 0)               = 0
[pid 22330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22330] write(3, "1000", 4)         = 4
[pid 22330] close(3)                    = 0
[pid 22330] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22330] write(1, "executing program\n", 18executing program
) = 18
[pid 22330] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22330] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22330] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22330] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22330] exit_group(0)               = ?
[pid 22330] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22330, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21758", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21758", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21758/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21758/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21758/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21758")                        = 0
mkdir("./21759", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22331 attached
, child_tidptr=0x55557a32b650) = 22331
[pid 22331] set_robust_list(0x55557a32b660, 24) = 0
[pid 22331] chdir("./21759")            = 0
[pid 22331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22331] setpgid(0, 0)               = 0
[pid 22331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22331] write(3, "1000", 4)         = 4
[pid 22331] close(3)                    = 0
[pid 22331] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22331] write(1, "executing program\n", 18executing program
) = 18
[pid 22331] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22331] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22331] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22331] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22331] exit_group(0)               = ?
[pid 22331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22331, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21759", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21759", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21759/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21759/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21759/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21759")                        = 0
mkdir("./21760", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22332 attached
, child_tidptr=0x55557a32b650) = 22332
[pid 22332] set_robust_list(0x55557a32b660, 24) = 0
[pid 22332] chdir("./21760")            = 0
[pid 22332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22332] setpgid(0, 0)               = 0
[pid 22332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22332] write(3, "1000", 4)         = 4
[pid 22332] close(3)                    = 0
[pid 22332] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22332] write(1, "executing program\n", 18executing program
) = 18
[pid 22332] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22332] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22332] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22332] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22332] exit_group(0)               = ?
[pid 22332] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22332, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21760", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21760", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21760/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21760/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21760/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21760")                        = 0
mkdir("./21761", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22333 attached
, child_tidptr=0x55557a32b650) = 22333
[pid 22333] set_robust_list(0x55557a32b660, 24) = 0
[pid 22333] chdir("./21761")            = 0
[pid 22333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22333] setpgid(0, 0)               = 0
[pid 22333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22333] write(3, "1000", 4)         = 4
[pid 22333] close(3)                    = 0
[pid 22333] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22333] write(1, "executing program\n", 18executing program
) = 18
[pid 22333] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22333] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22333] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22333] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22333] exit_group(0)               = ?
[pid 22333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22333, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21761", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21761", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21761/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21761/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21761/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21761")                        = 0
mkdir("./21762", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22334
./strace-static-x86_64: Process 22334 attached
[pid 22334] set_robust_list(0x55557a32b660, 24) = 0
[pid 22334] chdir("./21762")            = 0
[pid 22334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22334] setpgid(0, 0)               = 0
[pid 22334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22334] write(3, "1000", 4)         = 4
[pid 22334] close(3)                    = 0
[pid 22334] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22334] write(1, "executing program\n", 18) = 18
[pid 22334] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22334] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22334] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22334] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22334] exit_group(0)               = ?
[pid 22334] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22334, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21762", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21762", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21762/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21762/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21762/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21762")                        = 0
mkdir("./21763", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22335 attached
 <unfinished ...>
[pid 22335] set_robust_list(0x55557a32b660, 24) = 0
[pid 22335] chdir("./21763" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22335
[pid 22335] <... chdir resumed>)        = 0
[pid 22335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22335] setpgid(0, 0)               = 0
[pid 22335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22335] write(3, "1000", 4)         = 4
[pid 22335] close(3)                    = 0
[pid 22335] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22335] write(1, "executing program\n", 18executing program
) = 18
[pid 22335] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22335] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22335] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22335] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22335] exit_group(0)               = ?
[pid 22335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22335, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21763", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21763", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21763/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21763/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21763/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21763")                        = 0
mkdir("./21764", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22336 attached
 <unfinished ...>
[pid 22336] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22336
[pid 22336] chdir("./21764")            = 0
[pid 22336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22336] setpgid(0, 0)               = 0
[pid 22336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22336] write(3, "1000", 4)         = 4
[pid 22336] close(3)                    = 0
[pid 22336] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22336] write(1, "executing program\n", 18executing program
) = 18
[pid 22336] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22336] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22336] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22336] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22336] exit_group(0)               = ?
[pid 22336] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22336, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21764", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21764", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21764/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21764/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21764/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21764")                        = 0
mkdir("./21765", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22337
./strace-static-x86_64: Process 22337 attached
[pid 22337] set_robust_list(0x55557a32b660, 24) = 0
[pid 22337] chdir("./21765")            = 0
[pid 22337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22337] setpgid(0, 0)               = 0
[pid 22337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22337] write(3, "1000", 4)         = 4
[pid 22337] close(3)                    = 0
[pid 22337] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22337] write(1, "executing program\n", 18) = 18
[pid 22337] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22337] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22337] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22337] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22337] exit_group(0)               = ?
[pid 22337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22337, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21765", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21765", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21765/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21765/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21765/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21765")                        = 0
mkdir("./21766", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22338
./strace-static-x86_64: Process 22338 attached
[pid 22338] set_robust_list(0x55557a32b660, 24) = 0
[pid 22338] chdir("./21766")            = 0
[pid 22338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22338] setpgid(0, 0)               = 0
[pid 22338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22338] write(3, "1000", 4)         = 4
[pid 22338] close(3)                    = 0
[pid 22338] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22338] write(1, "executing program\n", 18executing program
) = 18
[pid 22338] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22338] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22338] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22338] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22338] exit_group(0)               = ?
[pid 22338] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22338, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21766", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21766", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21766/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21766/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21766/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21766")                        = 0
mkdir("./21767", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22339
./strace-static-x86_64: Process 22339 attached
[pid 22339] set_robust_list(0x55557a32b660, 24) = 0
[pid 22339] chdir("./21767")            = 0
[pid 22339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22339] setpgid(0, 0)               = 0
[pid 22339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22339] write(3, "1000", 4)         = 4
[pid 22339] close(3)                    = 0
[pid 22339] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22339] write(1, "executing program\n", 18executing program
) = 18
[pid 22339] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22339] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22339] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22339] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22339] exit_group(0)               = ?
[pid 22339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22339, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21767", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21767", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21767/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21767/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21767/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21767")                        = 0
mkdir("./21768", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22340 attached
, child_tidptr=0x55557a32b650) = 22340
[pid 22340] set_robust_list(0x55557a32b660, 24) = 0
[pid 22340] chdir("./21768")            = 0
[pid 22340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22340] setpgid(0, 0)               = 0
[pid 22340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22340] write(3, "1000", 4)         = 4
[pid 22340] close(3)                    = 0
[pid 22340] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22340] write(1, "executing program\n", 18executing program
) = 18
[pid 22340] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22340] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22340] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22340] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22340] exit_group(0)               = ?
[pid 22340] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22340, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21768", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21768", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21768/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21768/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21768/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21768")                        = 0
mkdir("./21769", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22341
./strace-static-x86_64: Process 22341 attached
[pid 22341] set_robust_list(0x55557a32b660, 24) = 0
[pid 22341] chdir("./21769")            = 0
[pid 22341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22341] setpgid(0, 0)               = 0
[pid 22341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22341] write(3, "1000", 4)         = 4
[pid 22341] close(3)                    = 0
[pid 22341] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22341] write(1, "executing program\n", 18executing program
) = 18
[pid 22341] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22341] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22341] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22341] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22341] exit_group(0)               = ?
[pid 22341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22341, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21769", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21769", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21769/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21769/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21769/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21769")                        = 0
mkdir("./21770", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22342 attached
, child_tidptr=0x55557a32b650) = 22342
[pid 22342] set_robust_list(0x55557a32b660, 24) = 0
[pid 22342] chdir("./21770")            = 0
[pid 22342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22342] setpgid(0, 0)               = 0
[pid 22342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22342] write(3, "1000", 4)         = 4
[pid 22342] close(3)                    = 0
[pid 22342] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22342] write(1, "executing program\n", 18executing program
) = 18
[pid 22342] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22342] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22342] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22342] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22342] exit_group(0)               = ?
[pid 22342] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22342, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21770", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21770", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21770/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21770/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21770/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21770")                        = 0
mkdir("./21771", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22343
./strace-static-x86_64: Process 22343 attached
[pid 22343] set_robust_list(0x55557a32b660, 24) = 0
[pid 22343] chdir("./21771")            = 0
[pid 22343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22343] setpgid(0, 0)               = 0
[pid 22343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22343] write(3, "1000", 4)         = 4
[pid 22343] close(3)                    = 0
[pid 22343] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22343] write(1, "executing program\n", 18executing program
) = 18
[pid 22343] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22343] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22343] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22343] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22343] exit_group(0)               = ?
[pid 22343] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22343, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21771", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21771", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21771/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21771/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21771/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21771")                        = 0
mkdir("./21772", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22344 attached
, child_tidptr=0x55557a32b650) = 22344
[pid 22344] set_robust_list(0x55557a32b660, 24) = 0
[pid 22344] chdir("./21772")            = 0
[pid 22344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22344] setpgid(0, 0)               = 0
[pid 22344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22344] write(3, "1000", 4)         = 4
[pid 22344] close(3)                    = 0
[pid 22344] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22344] write(1, "executing program\n", 18executing program
) = 18
[pid 22344] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22344] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22344] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22344] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22344] exit_group(0)               = ?
[pid 22344] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22344, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21772", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21772", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21772/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21772/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21772/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21772")                        = 0
mkdir("./21773", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22345
./strace-static-x86_64: Process 22345 attached
[pid 22345] set_robust_list(0x55557a32b660, 24) = 0
[pid 22345] chdir("./21773")            = 0
[pid 22345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22345] setpgid(0, 0)               = 0
[pid 22345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22345] write(3, "1000", 4)         = 4
[pid 22345] close(3)                    = 0
[pid 22345] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22345] write(1, "executing program\n", 18executing program
) = 18
[pid 22345] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22345] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22345] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22345] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22345] exit_group(0)               = ?
[pid 22345] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22345, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21773", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21773", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21773/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21773/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21773/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21773")                        = 0
mkdir("./21774", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22346 attached
 <unfinished ...>
[pid 22346] set_robust_list(0x55557a32b660, 24) = 0
[pid 22346] chdir("./21774" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22346
[pid 22346] <... chdir resumed>)        = 0
[pid 22346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22346] setpgid(0, 0)               = 0
[pid 22346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22346] write(3, "1000", 4)         = 4
[pid 22346] close(3)                    = 0
[pid 22346] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22346] write(1, "executing program\n", 18executing program
) = 18
[pid 22346] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22346] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22346] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22346] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22346] exit_group(0)               = ?
[pid 22346] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22346, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21774", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21774", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21774/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21774/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21774/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21774")                        = 0
mkdir("./21775", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22347
./strace-static-x86_64: Process 22347 attached
[pid 22347] set_robust_list(0x55557a32b660, 24) = 0
[pid 22347] chdir("./21775")            = 0
[pid 22347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22347] setpgid(0, 0)               = 0
[pid 22347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22347] write(3, "1000", 4)         = 4
[pid 22347] close(3)                    = 0
[pid 22347] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22347] write(1, "executing program\n", 18) = 18
[pid 22347] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22347] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22347] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22347] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22347] exit_group(0)               = ?
[pid 22347] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22347, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21775", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21775", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21775/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21775/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21775/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21775")                        = 0
mkdir("./21776", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22348
./strace-static-x86_64: Process 22348 attached
[pid 22348] set_robust_list(0x55557a32b660, 24) = 0
[pid 22348] chdir("./21776")            = 0
[pid 22348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22348] setpgid(0, 0)               = 0
[pid 22348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22348] write(3, "1000", 4)         = 4
[pid 22348] close(3)                    = 0
[pid 22348] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22348] write(1, "executing program\n", 18executing program
) = 18
[pid 22348] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22348] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22348] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22348] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22348] exit_group(0)               = ?
[pid 22348] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22348, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21776", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21776", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21776/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21776/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21776/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21776")                        = 0
mkdir("./21777", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22349
./strace-static-x86_64: Process 22349 attached
[pid 22349] set_robust_list(0x55557a32b660, 24) = 0
[pid 22349] chdir("./21777")            = 0
[pid 22349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22349] setpgid(0, 0)               = 0
[pid 22349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22349] write(3, "1000", 4)         = 4
[pid 22349] close(3)                    = 0
[pid 22349] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22349] write(1, "executing program\n", 18) = 18
[pid 22349] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22349] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22349] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22349] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22349] exit_group(0)               = ?
[pid 22349] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22349, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21777", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21777", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21777/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21777/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21777/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21777")                        = 0
mkdir("./21778", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22350 attached
, child_tidptr=0x55557a32b650) = 22350
[pid 22350] set_robust_list(0x55557a32b660, 24) = 0
[pid 22350] chdir("./21778")            = 0
[pid 22350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22350] setpgid(0, 0)               = 0
[pid 22350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22350] write(3, "1000", 4)         = 4
[pid 22350] close(3)                    = 0
[pid 22350] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22350] write(1, "executing program\n", 18executing program
) = 18
[pid 22350] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22350] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22350] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22350] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22350] exit_group(0)               = ?
[pid 22350] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22350, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21778", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21778", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21778/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21778/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21778/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21778")                        = 0
mkdir("./21779", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22351
./strace-static-x86_64: Process 22351 attached
[pid 22351] set_robust_list(0x55557a32b660, 24) = 0
[pid 22351] chdir("./21779")            = 0
[pid 22351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22351] setpgid(0, 0)               = 0
[pid 22351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22351] write(3, "1000", 4)         = 4
[pid 22351] close(3)                    = 0
[pid 22351] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22351] write(1, "executing program\n", 18) = 18
[pid 22351] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22351] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22351] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22351] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22351] exit_group(0)               = ?
[pid 22351] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22351, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21779", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21779", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21779/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21779/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21779/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21779")                        = 0
mkdir("./21780", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22352 attached
, child_tidptr=0x55557a32b650) = 22352
[pid 22352] set_robust_list(0x55557a32b660, 24) = 0
[pid 22352] chdir("./21780")            = 0
[pid 22352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22352] setpgid(0, 0)               = 0
[pid 22352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22352] write(3, "1000", 4)         = 4
[pid 22352] close(3)                    = 0
[pid 22352] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22352] write(1, "executing program\n", 18executing program
) = 18
[pid 22352] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22352] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22352] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22352] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22352] exit_group(0)               = ?
[pid 22352] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22352, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21780", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21780", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21780/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21780/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21780/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21780")                        = 0
mkdir("./21781", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22353
./strace-static-x86_64: Process 22353 attached
[pid 22353] set_robust_list(0x55557a32b660, 24) = 0
[pid 22353] chdir("./21781")            = 0
[pid 22353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22353] setpgid(0, 0)               = 0
[pid 22353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22353] write(3, "1000", 4)         = 4
[pid 22353] close(3)                    = 0
[pid 22353] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22353] write(1, "executing program\n", 18executing program
) = 18
[pid 22353] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22353] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22353] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22353] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22353] exit_group(0)               = ?
[pid 22353] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22353, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21781", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21781", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21781/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21781/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21781/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21781")                        = 0
mkdir("./21782", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22354 attached
, child_tidptr=0x55557a32b650) = 22354
[pid 22354] set_robust_list(0x55557a32b660, 24) = 0
[pid 22354] chdir("./21782")            = 0
[pid 22354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22354] setpgid(0, 0)               = 0
[pid 22354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22354] write(3, "1000", 4)         = 4
[pid 22354] close(3)                    = 0
[pid 22354] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22354] write(1, "executing program\n", 18executing program
) = 18
[pid 22354] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22354] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22354] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22354] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22354] exit_group(0)               = ?
[pid 22354] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22354, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21782", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21782", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21782/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21782/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21782/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21782")                        = 0
mkdir("./21783", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22356
./strace-static-x86_64: Process 22356 attached
[pid 22356] set_robust_list(0x55557a32b660, 24) = 0
[pid 22356] chdir("./21783")            = 0
[pid 22356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22356] setpgid(0, 0)               = 0
[pid 22356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22356] write(3, "1000", 4)         = 4
[pid 22356] close(3)                    = 0
[pid 22356] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22356] write(1, "executing program\n", 18executing program
) = 18
[pid 22356] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22356] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22356] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22356] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22356] exit_group(0)               = ?
[pid 22356] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22356, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21783", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21783", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21783/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21783/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21783/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21783")                        = 0
mkdir("./21784", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22357
./strace-static-x86_64: Process 22357 attached
[pid 22357] set_robust_list(0x55557a32b660, 24) = 0
[pid 22357] chdir("./21784")            = 0
[pid 22357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22357] setpgid(0, 0)               = 0
[pid 22357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22357] write(3, "1000", 4)         = 4
[pid 22357] close(3)                    = 0
[pid 22357] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22357] write(1, "executing program\n", 18executing program
) = 18
[pid 22357] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22357] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22357] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22357] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22357] exit_group(0)               = ?
[pid 22357] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22357, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21784", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21784", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21784/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21784/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21784/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21784")                        = 0
mkdir("./21785", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22358
./strace-static-x86_64: Process 22358 attached
[pid 22358] set_robust_list(0x55557a32b660, 24) = 0
[pid 22358] chdir("./21785")            = 0
[pid 22358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22358] setpgid(0, 0)               = 0
[pid 22358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22358] write(3, "1000", 4)         = 4
[pid 22358] close(3)                    = 0
[pid 22358] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22358] write(1, "executing program\n", 18executing program
) = 18
[pid 22358] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22358] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22358] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22358] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22358] exit_group(0)               = ?
[pid 22358] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22358, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21785", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21785", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21785/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21785/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21785/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21785")                        = 0
mkdir("./21786", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22359 attached
, child_tidptr=0x55557a32b650) = 22359
[pid 22359] set_robust_list(0x55557a32b660, 24) = 0
[pid 22359] chdir("./21786")            = 0
[pid 22359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22359] setpgid(0, 0)               = 0
[pid 22359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22359] write(3, "1000", 4)         = 4
[pid 22359] close(3)                    = 0
[pid 22359] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22359] write(1, "executing program\n", 18executing program
) = 18
[pid 22359] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22359] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22359] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22359] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22359] exit_group(0)               = ?
[pid 22359] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22359, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21786", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21786", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21786/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21786/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21786/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21786")                        = 0
mkdir("./21787", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22360
./strace-static-x86_64: Process 22360 attached
[pid 22360] set_robust_list(0x55557a32b660, 24) = 0
[pid 22360] chdir("./21787")            = 0
[pid 22360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22360] setpgid(0, 0)               = 0
[pid 22360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22360] write(3, "1000", 4)         = 4
[pid 22360] close(3)                    = 0
[pid 22360] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22360] write(1, "executing program\n", 18executing program
) = 18
[pid 22360] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22360] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22360] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22360] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22360] exit_group(0)               = ?
[pid 22360] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22360, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21787", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21787", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21787/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21787/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21787/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21787")                        = 0
mkdir("./21788", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22361
./strace-static-x86_64: Process 22361 attached
[pid 22361] set_robust_list(0x55557a32b660, 24) = 0
[pid 22361] chdir("./21788")            = 0
[pid 22361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22361] setpgid(0, 0)               = 0
[pid 22361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22361] write(3, "1000", 4)         = 4
[pid 22361] close(3)                    = 0
[pid 22361] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22361] write(1, "executing program\n", 18executing program
) = 18
[pid 22361] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22361] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22361] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22361] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22361] exit_group(0)               = ?
[pid 22361] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22361, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21788", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21788", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21788/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21788/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21788/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21788")                        = 0
mkdir("./21789", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22362
./strace-static-x86_64: Process 22362 attached
[pid 22362] set_robust_list(0x55557a32b660, 24) = 0
[pid 22362] chdir("./21789")            = 0
[pid 22362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22362] setpgid(0, 0)               = 0
[pid 22362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22362] write(3, "1000", 4)         = 4
[pid 22362] close(3)                    = 0
[pid 22362] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22362] write(1, "executing program\n", 18executing program
) = 18
[pid 22362] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22362] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22362] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22362] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22362] exit_group(0)               = ?
[pid 22362] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22362, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21789", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21789", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21789/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21789/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21789/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21789")                        = 0
mkdir("./21790", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22363
./strace-static-x86_64: Process 22363 attached
[pid 22363] set_robust_list(0x55557a32b660, 24) = 0
[pid 22363] chdir("./21790")            = 0
[pid 22363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22363] setpgid(0, 0)               = 0
[pid 22363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22363] write(3, "1000", 4)         = 4
[pid 22363] close(3)                    = 0
[pid 22363] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22363] write(1, "executing program\n", 18executing program
) = 18
[pid 22363] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22363] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22363] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22363] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22363] exit_group(0)               = ?
[pid 22363] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22363, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21790", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21790", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21790/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21790/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21790/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21790")                        = 0
mkdir("./21791", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22364
./strace-static-x86_64: Process 22364 attached
[pid 22364] set_robust_list(0x55557a32b660, 24) = 0
[pid 22364] chdir("./21791")            = 0
[pid 22364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22364] setpgid(0, 0)               = 0
[pid 22364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22364] write(3, "1000", 4)         = 4
[pid 22364] close(3)                    = 0
[pid 22364] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22364] write(1, "executing program\n", 18executing program
) = 18
[pid 22364] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22364] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22364] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22364] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22364] exit_group(0)               = ?
[pid 22364] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22364, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21791", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21791", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21791/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21791/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21791/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21791")                        = 0
mkdir("./21792", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22365
./strace-static-x86_64: Process 22365 attached
[pid 22365] set_robust_list(0x55557a32b660, 24) = 0
[pid 22365] chdir("./21792")            = 0
[pid 22365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22365] setpgid(0, 0)               = 0
[pid 22365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22365] write(3, "1000", 4)         = 4
[pid 22365] close(3)                    = 0
[pid 22365] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22365] write(1, "executing program\n", 18executing program
) = 18
[pid 22365] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22365] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22365] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22365] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22365] exit_group(0)               = ?
[pid 22365] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22365, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21792", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21792", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21792/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21792/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21792/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21792")                        = 0
mkdir("./21793", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22366
./strace-static-x86_64: Process 22366 attached
[pid 22366] set_robust_list(0x55557a32b660, 24) = 0
[pid 22366] chdir("./21793")            = 0
[pid 22366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22366] setpgid(0, 0)               = 0
[pid 22366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22366] write(3, "1000", 4)         = 4
[pid 22366] close(3)                    = 0
[pid 22366] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22366] write(1, "executing program\n", 18) = 18
[pid 22366] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22366] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22366] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22366] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22366] exit_group(0)               = ?
[pid 22366] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22366, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21793", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21793", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21793/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21793/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21793/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21793")                        = 0
mkdir("./21794", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22367 attached
, child_tidptr=0x55557a32b650) = 22367
[pid 22367] set_robust_list(0x55557a32b660, 24) = 0
[pid 22367] chdir("./21794")            = 0
[pid 22367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22367] setpgid(0, 0)               = 0
[pid 22367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22367] write(3, "1000", 4)         = 4
[pid 22367] close(3)                    = 0
[pid 22367] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22367] write(1, "executing program\n", 18executing program
) = 18
[pid 22367] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22367] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22367] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22367] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22367] exit_group(0)               = ?
[pid 22367] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22367, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21794", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21794", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21794/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21794/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21794/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21794")                        = 0
mkdir("./21795", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22368
./strace-static-x86_64: Process 22368 attached
[pid 22368] set_robust_list(0x55557a32b660, 24) = 0
[pid 22368] chdir("./21795")            = 0
[pid 22368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22368] setpgid(0, 0)               = 0
[pid 22368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22368] write(3, "1000", 4)         = 4
[pid 22368] close(3)                    = 0
[pid 22368] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22368] write(1, "executing program\n", 18executing program
) = 18
[pid 22368] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22368] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22368] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22368] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22368] exit_group(0)               = ?
[pid 22368] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22368, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21795", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21795", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21795/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21795/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21795/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21795")                        = 0
mkdir("./21796", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22369 attached
, child_tidptr=0x55557a32b650) = 22369
[pid 22369] set_robust_list(0x55557a32b660, 24) = 0
[pid 22369] chdir("./21796")            = 0
[pid 22369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22369] setpgid(0, 0)               = 0
[pid 22369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22369] write(3, "1000", 4)         = 4
[pid 22369] close(3)                    = 0
[pid 22369] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22369] write(1, "executing program\n", 18executing program
) = 18
[pid 22369] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22369] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22369] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22369] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22369] exit_group(0)               = ?
[pid 22369] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22369, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21796", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21796", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21796/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21796/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21796/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21796")                        = 0
mkdir("./21797", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22370
./strace-static-x86_64: Process 22370 attached
[pid 22370] set_robust_list(0x55557a32b660, 24) = 0
[pid 22370] chdir("./21797")            = 0
[pid 22370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22370] setpgid(0, 0)               = 0
[pid 22370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22370] write(3, "1000", 4)         = 4
[pid 22370] close(3)                    = 0
[pid 22370] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22370] write(1, "executing program\n", 18executing program
) = 18
[pid 22370] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22370] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22370] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22370] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22370] exit_group(0)               = ?
[pid 22370] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22370, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21797", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21797", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21797/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21797/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21797/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21797")                        = 0
mkdir("./21798", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22371
./strace-static-x86_64: Process 22371 attached
[pid 22371] set_robust_list(0x55557a32b660, 24) = 0
[pid 22371] chdir("./21798")            = 0
[pid 22371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22371] setpgid(0, 0)               = 0
[pid 22371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22371] write(3, "1000", 4)         = 4
[pid 22371] close(3)                    = 0
[pid 22371] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22371] write(1, "executing program\n", 18executing program
) = 18
[pid 22371] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22371] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22371] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22371] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22371] exit_group(0)               = ?
[pid 22371] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22371, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21798", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21798", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21798/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21798/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21798/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21798")                        = 0
mkdir("./21799", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22372
./strace-static-x86_64: Process 22372 attached
[pid 22372] set_robust_list(0x55557a32b660, 24) = 0
[pid 22372] chdir("./21799")            = 0
[pid 22372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22372] setpgid(0, 0)               = 0
[pid 22372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22372] write(3, "1000", 4)         = 4
[pid 22372] close(3)                    = 0
[pid 22372] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22372] write(1, "executing program\n", 18) = 18
[pid 22372] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22372] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22372] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22372] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22372] exit_group(0)               = ?
[pid 22372] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22372, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21799", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21799", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21799/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21799/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21799/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21799")                        = 0
mkdir("./21800", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22373
./strace-static-x86_64: Process 22373 attached
[pid 22373] set_robust_list(0x55557a32b660, 24) = 0
[pid 22373] chdir("./21800")            = 0
[pid 22373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22373] setpgid(0, 0)               = 0
[pid 22373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22373] write(3, "1000", 4)         = 4
[pid 22373] close(3)                    = 0
[pid 22373] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22373] write(1, "executing program\n", 18executing program
) = 18
[pid 22373] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22373] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22373] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22373] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22373] exit_group(0)               = ?
[pid 22373] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22373, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21800", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21800", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21800/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21800/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21800/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21800")                        = 0
mkdir("./21801", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22374
./strace-static-x86_64: Process 22374 attached
[pid 22374] set_robust_list(0x55557a32b660, 24) = 0
[pid 22374] chdir("./21801")            = 0
[pid 22374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22374] setpgid(0, 0)               = 0
[pid 22374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22374] write(3, "1000", 4)         = 4
[pid 22374] close(3)                    = 0
[pid 22374] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22374] write(1, "executing program\n", 18executing program
) = 18
[pid 22374] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22374] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22374] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22374] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22374] exit_group(0)               = ?
[pid 22374] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22374, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21801", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21801", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21801/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21801/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21801/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21801")                        = 0
mkdir("./21802", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22375
./strace-static-x86_64: Process 22375 attached
[pid 22375] set_robust_list(0x55557a32b660, 24) = 0
[pid 22375] chdir("./21802")            = 0
[pid 22375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22375] setpgid(0, 0)               = 0
[pid 22375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22375] write(3, "1000", 4)         = 4
[pid 22375] close(3)                    = 0
[pid 22375] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22375] write(1, "executing program\n", 18executing program
) = 18
[pid 22375] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22375] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22375] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22375] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22375] exit_group(0)               = ?
[pid 22375] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22375, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21802", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21802", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21802/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21802/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21802/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21802")                        = 0
mkdir("./21803", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22376
./strace-static-x86_64: Process 22376 attached
[pid 22376] set_robust_list(0x55557a32b660, 24) = 0
[pid 22376] chdir("./21803")            = 0
[pid 22376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22376] setpgid(0, 0)               = 0
[pid 22376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22376] write(3, "1000", 4)         = 4
[pid 22376] close(3)                    = 0
[pid 22376] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22376] write(1, "executing program\n", 18executing program
) = 18
[pid 22376] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22376] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22376] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22376] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22376] exit_group(0)               = ?
[pid 22376] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22376, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21803", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21803", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21803/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21803/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21803/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21803")                        = 0
mkdir("./21804", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22377 attached
 <unfinished ...>
[pid 22377] set_robust_list(0x55557a32b660, 24) = 0
[pid 22377] chdir("./21804")            = 0
[pid 22377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22377] setpgid(0, 0)               = 0
[pid 22377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22377] write(3, "1000", 4)         = 4
[pid 22377] close(3)                    = 0
[pid 22377] symlink("/dev/binderfs", "./binderfs"executing program
 <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22377
[pid 22377] <... symlink resumed>)      = 0
[pid 22377] write(1, "executing program\n", 18) = 18
[pid 22377] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22377] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22377] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22377] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22377] exit_group(0)               = ?
[pid 22377] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22377, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21804", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21804", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21804/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21804/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21804/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21804")                        = 0
mkdir("./21805", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22378
./strace-static-x86_64: Process 22378 attached
[pid 22378] set_robust_list(0x55557a32b660, 24) = 0
[pid 22378] chdir("./21805")            = 0
[pid 22378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22378] setpgid(0, 0)               = 0
[pid 22378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22378] write(3, "1000", 4)         = 4
[pid 22378] close(3)                    = 0
[pid 22378] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22378] write(1, "executing program\n", 18executing program
) = 18
[pid 22378] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22378] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22378] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22378] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22378] exit_group(0)               = ?
[pid 22378] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22378, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21805", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21805", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21805/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21805/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21805/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21805")                        = 0
mkdir("./21806", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22379
./strace-static-x86_64: Process 22379 attached
[pid 22379] set_robust_list(0x55557a32b660, 24) = 0
[pid 22379] chdir("./21806")            = 0
[pid 22379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22379] setpgid(0, 0)               = 0
[pid 22379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22379] write(3, "1000", 4)         = 4
[pid 22379] close(3)                    = 0
[pid 22379] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22379] write(1, "executing program\n", 18executing program
) = 18
[pid 22379] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22379] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22379] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22379] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22379] exit_group(0)               = ?
[pid 22379] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22379, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21806", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21806", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21806/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21806/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21806/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21806")                        = 0
mkdir("./21807", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22380
./strace-static-x86_64: Process 22380 attached
[pid 22380] set_robust_list(0x55557a32b660, 24) = 0
[pid 22380] chdir("./21807")            = 0
[pid 22380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22380] setpgid(0, 0)               = 0
[pid 22380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22380] write(3, "1000", 4)         = 4
[pid 22380] close(3)                    = 0
[pid 22380] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22380] write(1, "executing program\n", 18) = 18
[pid 22380] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22380] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22380] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22380] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22380] exit_group(0)               = ?
[pid 22380] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22380, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21807", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21807", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21807/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21807/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21807/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21807")                        = 0
mkdir("./21808", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22381
./strace-static-x86_64: Process 22381 attached
[pid 22381] set_robust_list(0x55557a32b660, 24) = 0
[pid 22381] chdir("./21808")            = 0
[pid 22381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22381] setpgid(0, 0)               = 0
[pid 22381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22381] write(3, "1000", 4)         = 4
[pid 22381] close(3)                    = 0
[pid 22381] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22381] write(1, "executing program\n", 18executing program
) = 18
[pid 22381] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22381] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22381] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22381] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22381] exit_group(0)               = ?
[pid 22381] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22381, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21808", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21808", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21808/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21808/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21808/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21808")                        = 0
mkdir("./21809", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22382 attached
, child_tidptr=0x55557a32b650) = 22382
[pid 22382] set_robust_list(0x55557a32b660, 24) = 0
[pid 22382] chdir("./21809")            = 0
[pid 22382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22382] setpgid(0, 0)               = 0
[pid 22382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22382] write(3, "1000", 4)         = 4
[pid 22382] close(3)                    = 0
[pid 22382] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22382] write(1, "executing program\n", 18executing program
) = 18
[pid 22382] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22382] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22382] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22382] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22382] exit_group(0)               = ?
[pid 22382] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22382, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21809", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21809", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21809/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21809/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21809/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21809")                        = 0
mkdir("./21810", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22383
./strace-static-x86_64: Process 22383 attached
[pid 22383] set_robust_list(0x55557a32b660, 24) = 0
[pid 22383] chdir("./21810")            = 0
[pid 22383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22383] setpgid(0, 0)               = 0
[pid 22383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22383] write(3, "1000", 4)         = 4
[pid 22383] close(3)                    = 0
[pid 22383] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22383] write(1, "executing program\n", 18executing program
) = 18
[pid 22383] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22383] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22383] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22383] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22383] exit_group(0)               = ?
[pid 22383] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22383, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21810", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21810", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21810/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21810/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21810/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21810")                        = 0
mkdir("./21811", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22384 attached
, child_tidptr=0x55557a32b650) = 22384
[pid 22384] set_robust_list(0x55557a32b660, 24) = 0
[pid 22384] chdir("./21811")            = 0
[pid 22384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22384] setpgid(0, 0)               = 0
[pid 22384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22384] write(3, "1000", 4)         = 4
[pid 22384] close(3)                    = 0
[pid 22384] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22384] write(1, "executing program\n", 18executing program
) = 18
[pid 22384] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22384] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22384] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22384] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22384] exit_group(0)               = ?
[pid 22384] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22384, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21811", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21811", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21811/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21811/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21811/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21811")                        = 0
mkdir("./21812", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22385
./strace-static-x86_64: Process 22385 attached
[pid 22385] set_robust_list(0x55557a32b660, 24) = 0
[pid 22385] chdir("./21812")            = 0
[pid 22385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22385] setpgid(0, 0)               = 0
[pid 22385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22385] write(3, "1000", 4)         = 4
[pid 22385] close(3)                    = 0
[pid 22385] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22385] write(1, "executing program\n", 18executing program
) = 18
[pid 22385] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22385] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22385] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22385] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22385] exit_group(0)               = ?
[pid 22385] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22385, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21812", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21812", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21812/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21812/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21812/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21812")                        = 0
mkdir("./21813", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22386
./strace-static-x86_64: Process 22386 attached
[pid 22386] set_robust_list(0x55557a32b660, 24) = 0
[pid 22386] chdir("./21813")            = 0
[pid 22386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22386] setpgid(0, 0)               = 0
[pid 22386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22386] write(3, "1000", 4)         = 4
[pid 22386] close(3)                    = 0
[pid 22386] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22386] write(1, "executing program\n", 18executing program
) = 18
[pid 22386] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22386] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22386] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22386] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22386] exit_group(0)               = ?
[pid 22386] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22386, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21813", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21813", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21813/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21813/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21813/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21813")                        = 0
mkdir("./21814", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22387
./strace-static-x86_64: Process 22387 attached
[pid 22387] set_robust_list(0x55557a32b660, 24) = 0
[pid 22387] chdir("./21814")            = 0
[pid 22387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22387] setpgid(0, 0)               = 0
[pid 22387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22387] write(3, "1000", 4)         = 4
[pid 22387] close(3)                    = 0
[pid 22387] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22387] write(1, "executing program\n", 18executing program
) = 18
[pid 22387] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22387] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22387] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22387] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22387] exit_group(0)               = ?
[pid 22387] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22387, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21814", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21814", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21814/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21814/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21814/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21814")                        = 0
mkdir("./21815", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22388
./strace-static-x86_64: Process 22388 attached
[pid 22388] set_robust_list(0x55557a32b660, 24) = 0
[pid 22388] chdir("./21815")            = 0
[pid 22388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22388] setpgid(0, 0)               = 0
[pid 22388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22388] write(3, "1000", 4)         = 4
[pid 22388] close(3)                    = 0
[pid 22388] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22388] write(1, "executing program\n", 18executing program
) = 18
[pid 22388] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22388] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22388] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22388] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22388] exit_group(0)               = ?
[pid 22388] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22388, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21815", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21815", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21815/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21815/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21815/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21815")                        = 0
mkdir("./21816", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22389
./strace-static-x86_64: Process 22389 attached
[pid 22389] set_robust_list(0x55557a32b660, 24) = 0
[pid 22389] chdir("./21816")            = 0
[pid 22389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22389] setpgid(0, 0)               = 0
[pid 22389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22389] write(3, "1000", 4)         = 4
[pid 22389] close(3)                    = 0
[pid 22389] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22389] write(1, "executing program\n", 18) = 18
[pid 22389] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22389] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22389] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22389] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22389] exit_group(0)               = ?
[pid 22389] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22389, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21816", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21816", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21816/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21816/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21816/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21816")                        = 0
mkdir("./21817", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22390 attached
 <unfinished ...>
[pid 22390] set_robust_list(0x55557a32b660, 24) = 0
[pid 22390] chdir("./21817" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22390
[pid 22390] <... chdir resumed>)        = 0
[pid 22390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22390] setpgid(0, 0)               = 0
[pid 22390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22390] write(3, "1000", 4)         = 4
[pid 22390] close(3)                    = 0
[pid 22390] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22390] write(1, "executing program\n", 18) = 18
[pid 22390] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22390] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22390] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22390] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22390] exit_group(0)               = ?
[pid 22390] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22390, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21817", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21817", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21817/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21817/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21817/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21817")                        = 0
mkdir("./21818", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22391
./strace-static-x86_64: Process 22391 attached
[pid 22391] set_robust_list(0x55557a32b660, 24) = 0
[pid 22391] chdir("./21818")            = 0
[pid 22391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22391] setpgid(0, 0)               = 0
[pid 22391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22391] write(3, "1000", 4)         = 4
[pid 22391] close(3)                    = 0
[pid 22391] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22391] write(1, "executing program\n", 18executing program
) = 18
[pid 22391] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22391] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22391] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22391] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22391] exit_group(0)               = ?
[pid 22391] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22391, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21818", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21818", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21818/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21818/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21818/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21818")                        = 0
mkdir("./21819", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22392
./strace-static-x86_64: Process 22392 attached
[pid 22392] set_robust_list(0x55557a32b660, 24) = 0
[pid 22392] chdir("./21819")            = 0
[pid 22392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22392] setpgid(0, 0)               = 0
[pid 22392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22392] write(3, "1000", 4)         = 4
[pid 22392] close(3)                    = 0
[pid 22392] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22392] write(1, "executing program\n", 18executing program
) = 18
[pid 22392] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22392] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22392] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22392] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22392] exit_group(0)               = ?
[pid 22392] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22392, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21819", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21819", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21819/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21819/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21819/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21819")                        = 0
mkdir("./21820", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22393
./strace-static-x86_64: Process 22393 attached
[pid 22393] set_robust_list(0x55557a32b660, 24) = 0
[pid 22393] chdir("./21820")            = 0
[pid 22393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22393] setpgid(0, 0)               = 0
[pid 22393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22393] write(3, "1000", 4)         = 4
[pid 22393] close(3)                    = 0
[pid 22393] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22393] write(1, "executing program\n", 18executing program
) = 18
[pid 22393] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22393] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22393] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22393] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22393] exit_group(0)               = ?
[pid 22393] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22393, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21820", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21820", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21820/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21820/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21820/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21820")                        = 0
mkdir("./21821", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22394
./strace-static-x86_64: Process 22394 attached
[pid 22394] set_robust_list(0x55557a32b660, 24) = 0
[pid 22394] chdir("./21821")            = 0
[pid 22394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22394] setpgid(0, 0)               = 0
[pid 22394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22394] write(3, "1000", 4)         = 4
[pid 22394] close(3)                    = 0
[pid 22394] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22394] write(1, "executing program\n", 18executing program
) = 18
[pid 22394] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22394] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22394] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22394] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22394] exit_group(0)               = ?
[pid 22394] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22394, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21821", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21821", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21821/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21821/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21821/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21821")                        = 0
mkdir("./21822", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22395
./strace-static-x86_64: Process 22395 attached
[pid 22395] set_robust_list(0x55557a32b660, 24) = 0
[pid 22395] chdir("./21822")            = 0
[pid 22395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22395] setpgid(0, 0)               = 0
[pid 22395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22395] write(3, "1000", 4)         = 4
[pid 22395] close(3)                    = 0
[pid 22395] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22395] write(1, "executing program\n", 18executing program
) = 18
[pid 22395] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22395] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22395] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22395] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22395] exit_group(0)               = ?
[pid 22395] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22395, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21822", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21822", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21822/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21822/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21822/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21822")                        = 0
mkdir("./21823", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22396
./strace-static-x86_64: Process 22396 attached
[pid 22396] set_robust_list(0x55557a32b660, 24) = 0
[pid 22396] chdir("./21823")            = 0
[pid 22396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22396] setpgid(0, 0)               = 0
[pid 22396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22396] write(3, "1000", 4)         = 4
[pid 22396] close(3)                    = 0
[pid 22396] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22396] write(1, "executing program\n", 18executing program
) = 18
[pid 22396] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22396] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22396] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22396] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22396] exit_group(0)               = ?
[pid 22396] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22396, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21823", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21823", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21823/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21823/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21823/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21823")                        = 0
mkdir("./21824", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22397 attached
 <unfinished ...>
[pid 22397] set_robust_list(0x55557a32b660, 24) = 0
[pid 22397] chdir("./21824" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22397
[pid 22397] <... chdir resumed>)        = 0
[pid 22397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22397] setpgid(0, 0)               = 0
[pid 22397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22397] write(3, "1000", 4)         = 4
[pid 22397] close(3)                    = 0
[pid 22397] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22397] write(1, "executing program\n", 18executing program
) = 18
[pid 22397] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22397] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22397] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22397] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22397] exit_group(0)               = ?
[pid 22397] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22397, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21824", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21824", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21824/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21824/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21824/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21824")                        = 0
mkdir("./21825", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22398
./strace-static-x86_64: Process 22398 attached
[pid 22398] set_robust_list(0x55557a32b660, 24) = 0
[pid 22398] chdir("./21825")            = 0
[pid 22398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22398] setpgid(0, 0)               = 0
[pid 22398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22398] write(3, "1000", 4)         = 4
[pid 22398] close(3)                    = 0
[pid 22398] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22398] write(1, "executing program\n", 18executing program
) = 18
[pid 22398] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22398] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22398] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22398] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22398] exit_group(0)               = ?
[pid 22398] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22398, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21825", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21825", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21825/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21825/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21825/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21825")                        = 0
mkdir("./21826", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22399
./strace-static-x86_64: Process 22399 attached
[pid 22399] set_robust_list(0x55557a32b660, 24) = 0
[pid 22399] chdir("./21826")            = 0
[pid 22399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22399] setpgid(0, 0)               = 0
[pid 22399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22399] write(3, "1000", 4)         = 4
[pid 22399] close(3)                    = 0
[pid 22399] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22399] write(1, "executing program\n", 18executing program
) = 18
[pid 22399] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22399] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22399] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22399] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22399] exit_group(0)               = ?
[pid 22399] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22399, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21826", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21826", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21826/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21826/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21826/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21826")                        = 0
mkdir("./21827", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22400
./strace-static-x86_64: Process 22400 attached
[pid 22400] set_robust_list(0x55557a32b660, 24) = 0
[pid 22400] chdir("./21827")            = 0
[pid 22400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22400] setpgid(0, 0)               = 0
[pid 22400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22400] write(3, "1000", 4)         = 4
[pid 22400] close(3)                    = 0
[pid 22400] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22400] write(1, "executing program\n", 18executing program
) = 18
[pid 22400] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22400] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22400] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22400] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22400] exit_group(0)               = ?
[pid 22400] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22400, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21827", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21827", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21827/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21827/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21827/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21827")                        = 0
mkdir("./21828", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22401
./strace-static-x86_64: Process 22401 attached
[pid 22401] set_robust_list(0x55557a32b660, 24) = 0
[pid 22401] chdir("./21828")            = 0
[pid 22401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22401] setpgid(0, 0)               = 0
[pid 22401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22401] write(3, "1000", 4)         = 4
[pid 22401] close(3)                    = 0
[pid 22401] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22401] write(1, "executing program\n", 18executing program
) = 18
[pid 22401] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22401] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22401] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22401] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22401] exit_group(0)               = ?
[pid 22401] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22401, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21828", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21828", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21828/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21828/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21828/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21828")                        = 0
mkdir("./21829", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22402
./strace-static-x86_64: Process 22402 attached
[pid 22402] set_robust_list(0x55557a32b660, 24) = 0
[pid 22402] chdir("./21829")            = 0
[pid 22402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22402] setpgid(0, 0)               = 0
[pid 22402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22402] write(3, "1000", 4)         = 4
[pid 22402] close(3)                    = 0
[pid 22402] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22402] write(1, "executing program\n", 18executing program
) = 18
[pid 22402] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22402] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22402] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22402] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22402] exit_group(0)               = ?
[pid 22402] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22402, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21829", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21829", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21829/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21829/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21829/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21829")                        = 0
mkdir("./21830", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22403
./strace-static-x86_64: Process 22403 attached
[pid 22403] set_robust_list(0x55557a32b660, 24) = 0
[pid 22403] chdir("./21830")            = 0
[pid 22403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22403] setpgid(0, 0)               = 0
[pid 22403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22403] write(3, "1000", 4)         = 4
[pid 22403] close(3)                    = 0
[pid 22403] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22403] write(1, "executing program\n", 18executing program
) = 18
[pid 22403] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22403] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22403] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22403] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22403] exit_group(0)               = ?
[pid 22403] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22403, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21830", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21830", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21830/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21830/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21830/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21830")                        = 0
mkdir("./21831", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22404
./strace-static-x86_64: Process 22404 attached
[pid 22404] set_robust_list(0x55557a32b660, 24) = 0
[pid 22404] chdir("./21831")            = 0
[pid 22404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22404] setpgid(0, 0)               = 0
[pid 22404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22404] write(3, "1000", 4)         = 4
[pid 22404] close(3)                    = 0
[pid 22404] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22404] write(1, "executing program\n", 18executing program
) = 18
[pid 22404] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22404] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22404] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22404] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22404] exit_group(0)               = ?
[pid 22404] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22404, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21831", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21831", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21831/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21831/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21831/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21831")                        = 0
mkdir("./21832", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22405 attached
, child_tidptr=0x55557a32b650) = 22405
[pid 22405] set_robust_list(0x55557a32b660, 24) = 0
[pid 22405] chdir("./21832")            = 0
[pid 22405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22405] setpgid(0, 0)               = 0
[pid 22405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22405] write(3, "1000", 4)         = 4
[pid 22405] close(3)                    = 0
[pid 22405] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22405] write(1, "executing program\n", 18executing program
) = 18
[pid 22405] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22405] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22405] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22405] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22405] exit_group(0)               = ?
[pid 22405] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22405, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21832", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21832", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21832/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21832/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21832/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21832")                        = 0
mkdir("./21833", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22406 attached
, child_tidptr=0x55557a32b650) = 22406
[pid 22406] set_robust_list(0x55557a32b660, 24) = 0
[pid 22406] chdir("./21833")            = 0
[pid 22406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22406] setpgid(0, 0)               = 0
[pid 22406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22406] write(3, "1000", 4)         = 4
[pid 22406] close(3)                    = 0
[pid 22406] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22406] write(1, "executing program\n", 18executing program
) = 18
[pid 22406] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22406] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22406] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22406] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22406] exit_group(0)               = ?
[pid 22406] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22406, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21833", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21833", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21833/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21833/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21833/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21833")                        = 0
mkdir("./21834", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22407
./strace-static-x86_64: Process 22407 attached
[pid 22407] set_robust_list(0x55557a32b660, 24) = 0
[pid 22407] chdir("./21834")            = 0
[pid 22407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22407] setpgid(0, 0)               = 0
[pid 22407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22407] write(3, "1000", 4)         = 4
[pid 22407] close(3)                    = 0
[pid 22407] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22407] write(1, "executing program\n", 18) = 18
[pid 22407] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22407] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22407] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22407] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22407] exit_group(0)               = ?
[pid 22407] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22407, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21834", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21834", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21834/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21834/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21834/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21834")                        = 0
mkdir("./21835", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22408 attached
 <unfinished ...>
[pid 22408] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22408
[pid 22408] chdir("./21835")            = 0
[pid 22408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22408] setpgid(0, 0)               = 0
[pid 22408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22408] write(3, "1000", 4)         = 4
[pid 22408] close(3)                    = 0
[pid 22408] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22408] write(1, "executing program\n", 18executing program
) = 18
[pid 22408] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22408] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22408] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22408] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22408] exit_group(0)               = ?
[pid 22408] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22408, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21835", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21835", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21835/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21835/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21835/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21835")                        = 0
mkdir("./21836", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22409 attached
, child_tidptr=0x55557a32b650) = 22409
[pid 22409] set_robust_list(0x55557a32b660, 24) = 0
[pid 22409] chdir("./21836")            = 0
[pid 22409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22409] setpgid(0, 0)               = 0
[pid 22409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22409] write(3, "1000", 4)         = 4
[pid 22409] close(3)                    = 0
[pid 22409] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22409] write(1, "executing program\n", 18executing program
) = 18
[pid 22409] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22409] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22409] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22409] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22409] exit_group(0)               = ?
[pid 22409] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22409, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21836", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21836", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21836/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21836/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21836/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21836")                        = 0
mkdir("./21837", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22410 attached
, child_tidptr=0x55557a32b650) = 22410
[pid 22410] set_robust_list(0x55557a32b660, 24) = 0
[pid 22410] chdir("./21837")            = 0
[pid 22410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22410] setpgid(0, 0)               = 0
[pid 22410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22410] write(3, "1000", 4)         = 4
[pid 22410] close(3)                    = 0
[pid 22410] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22410] write(1, "executing program\n", 18executing program
) = 18
[pid 22410] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22410] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22410] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22410] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22410] exit_group(0)               = ?
[pid 22410] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21837", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21837", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21837/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21837/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21837/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21837")                        = 0
mkdir("./21838", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22411
./strace-static-x86_64: Process 22411 attached
[pid 22411] set_robust_list(0x55557a32b660, 24) = 0
[pid 22411] chdir("./21838")            = 0
[pid 22411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22411] setpgid(0, 0)               = 0
[pid 22411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22411] write(3, "1000", 4)         = 4
[pid 22411] close(3)                    = 0
[pid 22411] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22411] write(1, "executing program\n", 18executing program
) = 18
[pid 22411] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22411] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22411] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22411] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22411] exit_group(0)               = ?
[pid 22411] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22411, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21838", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21838", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21838/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21838/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21838/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21838")                        = 0
mkdir("./21839", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22412 attached
, child_tidptr=0x55557a32b650) = 22412
[pid 22412] set_robust_list(0x55557a32b660, 24) = 0
[pid 22412] chdir("./21839")            = 0
[pid 22412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22412] setpgid(0, 0)               = 0
[pid 22412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22412] write(3, "1000", 4)         = 4
[pid 22412] close(3)                    = 0
[pid 22412] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22412] write(1, "executing program\n", 18executing program
) = 18
[pid 22412] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22412] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22412] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22412] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22412] exit_group(0)               = ?
[pid 22412] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22412, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21839", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21839", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21839/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21839/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21839/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21839")                        = 0
mkdir("./21840", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22413
./strace-static-x86_64: Process 22413 attached
[pid 22413] set_robust_list(0x55557a32b660, 24) = 0
[pid 22413] chdir("./21840")            = 0
[pid 22413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22413] setpgid(0, 0)               = 0
[pid 22413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22413] write(3, "1000", 4)         = 4
[pid 22413] close(3)                    = 0
[pid 22413] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22413] write(1, "executing program\n", 18executing program
) = 18
[pid 22413] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22413] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22413] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22413] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22413] exit_group(0)               = ?
[pid 22413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22413, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21840", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21840", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21840/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21840/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21840/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21840")                        = 0
mkdir("./21841", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22414 attached
 <unfinished ...>
[pid 22414] set_robust_list(0x55557a32b660, 24) = 0
[pid 22414] chdir("./21841" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22414
[pid 22414] <... chdir resumed>)        = 0
[pid 22414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22414] setpgid(0, 0)               = 0
[pid 22414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22414] write(3, "1000", 4)         = 4
[pid 22414] close(3)                    = 0
[pid 22414] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22414] write(1, "executing program\n", 18) = 18
[pid 22414] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22414] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22414] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22414] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22414] exit_group(0)               = ?
[pid 22414] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22414, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21841", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21841", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21841/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21841/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21841/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21841")                        = 0
mkdir("./21842", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22415
./strace-static-x86_64: Process 22415 attached
[pid 22415] set_robust_list(0x55557a32b660, 24) = 0
[pid 22415] chdir("./21842")            = 0
[pid 22415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22415] setpgid(0, 0)               = 0
[pid 22415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22415] write(3, "1000", 4)         = 4
[pid 22415] close(3)                    = 0
[pid 22415] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22415] write(1, "executing program\n", 18executing program
) = 18
[pid 22415] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22415] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22415] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22415] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22415] exit_group(0)               = ?
[pid 22415] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22415, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21842", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21842", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21842/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21842/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21842/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21842")                        = 0
mkdir("./21843", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22416
./strace-static-x86_64: Process 22416 attached
[pid 22416] set_robust_list(0x55557a32b660, 24) = 0
[pid 22416] chdir("./21843")            = 0
[pid 22416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22416] setpgid(0, 0)               = 0
[pid 22416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22416] write(3, "1000", 4)         = 4
[pid 22416] close(3)                    = 0
[pid 22416] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22416] write(1, "executing program\n", 18executing program
) = 18
[pid 22416] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22416] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22416] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22416] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22416] exit_group(0)               = ?
[pid 22416] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22416, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21843", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21843", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21843/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21843/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21843/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21843")                        = 0
mkdir("./21844", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22417
./strace-static-x86_64: Process 22417 attached
[pid 22417] set_robust_list(0x55557a32b660, 24) = 0
[pid 22417] chdir("./21844")            = 0
[pid 22417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22417] setpgid(0, 0)               = 0
[pid 22417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22417] write(3, "1000", 4)         = 4
[pid 22417] close(3)                    = 0
[pid 22417] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22417] write(1, "executing program\n", 18executing program
) = 18
[pid 22417] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22417] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22417] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22417] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22417] exit_group(0)               = ?
[pid 22417] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22417, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21844", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21844", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21844/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21844/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21844/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21844")                        = 0
mkdir("./21845", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22418 attached
, child_tidptr=0x55557a32b650) = 22418
[pid 22418] set_robust_list(0x55557a32b660, 24) = 0
[pid 22418] chdir("./21845")            = 0
[pid 22418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22418] setpgid(0, 0)               = 0
[pid 22418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22418] write(3, "1000", 4)         = 4
[pid 22418] close(3)                    = 0
[pid 22418] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22418] write(1, "executing program\n", 18executing program
) = 18
[pid 22418] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22418] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22418] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22418] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22418] exit_group(0)               = ?
[pid 22418] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22418, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21845", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21845", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21845/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21845/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21845/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21845")                        = 0
mkdir("./21846", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22419
./strace-static-x86_64: Process 22419 attached
[pid 22419] set_robust_list(0x55557a32b660, 24) = 0
[pid 22419] chdir("./21846")            = 0
[pid 22419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22419] setpgid(0, 0)               = 0
[pid 22419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22419] write(3, "1000", 4)         = 4
[pid 22419] close(3)                    = 0
[pid 22419] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22419] write(1, "executing program\n", 18executing program
) = 18
[pid 22419] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22419] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22419] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22419] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22419] exit_group(0)               = ?
[pid 22419] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22419, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21846", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21846", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21846/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21846/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21846/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21846")                        = 0
mkdir("./21847", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22420
./strace-static-x86_64: Process 22420 attached
[pid 22420] set_robust_list(0x55557a32b660, 24) = 0
[pid 22420] chdir("./21847")            = 0
[pid 22420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22420] setpgid(0, 0)               = 0
[pid 22420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22420] write(3, "1000", 4)         = 4
[pid 22420] close(3)                    = 0
[pid 22420] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22420] write(1, "executing program\n", 18executing program
) = 18
[pid 22420] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22420] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22420] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22420] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22420] exit_group(0)               = ?
[pid 22420] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22420, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21847", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21847", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21847/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21847/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21847/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21847")                        = 0
mkdir("./21848", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22421 attached
, child_tidptr=0x55557a32b650) = 22421
[pid 22421] set_robust_list(0x55557a32b660, 24) = 0
[pid 22421] chdir("./21848")            = 0
[pid 22421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22421] setpgid(0, 0)               = 0
[pid 22421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22421] write(3, "1000", 4)         = 4
[pid 22421] close(3)                    = 0
[pid 22421] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22421] write(1, "executing program\n", 18executing program
) = 18
[pid 22421] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22421] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22421] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22421] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22421] exit_group(0)               = ?
[pid 22421] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22421, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21848", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21848", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21848/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21848/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21848/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21848")                        = 0
mkdir("./21849", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22422
./strace-static-x86_64: Process 22422 attached
[pid 22422] set_robust_list(0x55557a32b660, 24) = 0
[pid 22422] chdir("./21849")            = 0
[pid 22422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22422] setpgid(0, 0)               = 0
[pid 22422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22422] write(3, "1000", 4)         = 4
[pid 22422] close(3)                    = 0
[pid 22422] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22422] write(1, "executing program\n", 18executing program
) = 18
[pid 22422] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22422] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22422] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22422] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22422] exit_group(0)               = ?
[pid 22422] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22422, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21849", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21849", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21849/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21849/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21849/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21849")                        = 0
mkdir("./21850", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22423
./strace-static-x86_64: Process 22423 attached
[pid 22423] set_robust_list(0x55557a32b660, 24) = 0
[pid 22423] chdir("./21850")            = 0
[pid 22423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22423] setpgid(0, 0)               = 0
[pid 22423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22423] write(3, "1000", 4)         = 4
[pid 22423] close(3)                    = 0
[pid 22423] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22423] write(1, "executing program\n", 18) = 18
[pid 22423] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22423] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22423] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22423] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22423] exit_group(0)               = ?
[pid 22423] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22423, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21850", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21850", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21850/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21850/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21850/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21850")                        = 0
mkdir("./21851", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22424 attached
, child_tidptr=0x55557a32b650) = 22424
[pid 22424] set_robust_list(0x55557a32b660, 24) = 0
[pid 22424] chdir("./21851")            = 0
[pid 22424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22424] setpgid(0, 0)               = 0
[pid 22424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22424] write(3, "1000", 4)         = 4
[pid 22424] close(3)                    = 0
[pid 22424] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22424] write(1, "executing program\n", 18executing program
) = 18
[pid 22424] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22424] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22424] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22424] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22424] exit_group(0)               = ?
[pid 22424] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22424, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21851", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21851", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21851/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21851/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21851/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21851")                        = 0
mkdir("./21852", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22425
./strace-static-x86_64: Process 22425 attached
[pid 22425] set_robust_list(0x55557a32b660, 24) = 0
[pid 22425] chdir("./21852")            = 0
[pid 22425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22425] setpgid(0, 0)               = 0
[pid 22425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22425] write(3, "1000", 4)         = 4
[pid 22425] close(3)                    = 0
[pid 22425] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22425] write(1, "executing program\n", 18executing program
) = 18
[pid 22425] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22425] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22425] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22425] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22425] exit_group(0)               = ?
[pid 22425] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22425, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21852", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21852", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21852/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21852/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21852/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21852")                        = 0
mkdir("./21853", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22426
./strace-static-x86_64: Process 22426 attached
[pid 22426] set_robust_list(0x55557a32b660, 24) = 0
[pid 22426] chdir("./21853")            = 0
[pid 22426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22426] setpgid(0, 0)               = 0
[pid 22426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22426] write(3, "1000", 4)         = 4
[pid 22426] close(3)                    = 0
[pid 22426] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22426] write(1, "executing program\n", 18executing program
) = 18
[pid 22426] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22426] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22426] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22426] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22426] exit_group(0)               = ?
[pid 22426] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22426, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21853", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21853", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21853/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21853/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21853/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21853")                        = 0
mkdir("./21854", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22427
./strace-static-x86_64: Process 22427 attached
[pid 22427] set_robust_list(0x55557a32b660, 24) = 0
[pid 22427] chdir("./21854")            = 0
[pid 22427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22427] setpgid(0, 0)               = 0
[pid 22427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22427] write(3, "1000", 4)         = 4
[pid 22427] close(3)                    = 0
[pid 22427] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22427] write(1, "executing program\n", 18executing program
) = 18
[pid 22427] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22427] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22427] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22427] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22427] exit_group(0)               = ?
[pid 22427] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22427, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21854", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21854", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21854/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21854/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21854/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21854")                        = 0
mkdir("./21855", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22428
./strace-static-x86_64: Process 22428 attached
[pid 22428] set_robust_list(0x55557a32b660, 24) = 0
[pid 22428] chdir("./21855")            = 0
[pid 22428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22428] setpgid(0, 0)               = 0
[pid 22428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22428] write(3, "1000", 4)         = 4
[pid 22428] close(3)                    = 0
[pid 22428] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22428] write(1, "executing program\n", 18executing program
) = 18
[pid 22428] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22428] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22428] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22428] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22428] exit_group(0)               = ?
[pid 22428] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22428, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21855", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21855", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21855/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21855/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21855/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21855")                        = 0
mkdir("./21856", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22429
./strace-static-x86_64: Process 22429 attached
[pid 22429] set_robust_list(0x55557a32b660, 24) = 0
[pid 22429] chdir("./21856")            = 0
[pid 22429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22429] setpgid(0, 0)               = 0
[pid 22429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22429] write(3, "1000", 4)         = 4
[pid 22429] close(3)                    = 0
[pid 22429] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22429] write(1, "executing program\n", 18executing program
) = 18
[pid 22429] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22429] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22429] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22429] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22429] exit_group(0)               = ?
[pid 22429] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22429, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21856", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21856", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21856/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21856/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21856/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21856")                        = 0
mkdir("./21857", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22431
./strace-static-x86_64: Process 22431 attached
[pid 22431] set_robust_list(0x55557a32b660, 24) = 0
[pid 22431] chdir("./21857")            = 0
[pid 22431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22431] setpgid(0, 0)               = 0
[pid 22431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22431] write(3, "1000", 4)         = 4
[pid 22431] close(3)                    = 0
[pid 22431] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22431] write(1, "executing program\n", 18) = 18
[pid 22431] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22431] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22431] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22431] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22431] exit_group(0)               = ?
[pid 22431] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22431, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21857", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21857", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21857/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21857/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21857/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21857")                        = 0
mkdir("./21858", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22432
./strace-static-x86_64: Process 22432 attached
[pid 22432] set_robust_list(0x55557a32b660, 24) = 0
[pid 22432] chdir("./21858")            = 0
[pid 22432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22432] setpgid(0, 0)               = 0
[pid 22432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22432] write(3, "1000", 4)         = 4
[pid 22432] close(3)                    = 0
[pid 22432] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22432] write(1, "executing program\n", 18executing program
) = 18
[pid 22432] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22432] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22432] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22432] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22432] exit_group(0)               = ?
[pid 22432] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22432, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21858", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21858", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21858/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21858/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21858/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21858")                        = 0
mkdir("./21859", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22433
./strace-static-x86_64: Process 22433 attached
[pid 22433] set_robust_list(0x55557a32b660, 24) = 0
[pid 22433] chdir("./21859")            = 0
[pid 22433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22433] setpgid(0, 0)               = 0
[pid 22433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22433] write(3, "1000", 4)         = 4
[pid 22433] close(3)                    = 0
[pid 22433] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22433] write(1, "executing program\n", 18) = 18
[pid 22433] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22433] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22433] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22433] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22433] exit_group(0)               = ?
[pid 22433] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22433, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21859", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21859", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21859/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21859/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21859/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21859")                        = 0
mkdir("./21860", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22434
./strace-static-x86_64: Process 22434 attached
[pid 22434] set_robust_list(0x55557a32b660, 24) = 0
[pid 22434] chdir("./21860")            = 0
[pid 22434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22434] setpgid(0, 0)               = 0
[pid 22434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22434] write(3, "1000", 4)         = 4
[pid 22434] close(3)                    = 0
[pid 22434] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22434] write(1, "executing program\n", 18) = 18
[pid 22434] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22434] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22434] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22434] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22434] exit_group(0)               = ?
[pid 22434] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22434, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21860", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21860", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21860/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21860/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21860/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21860")                        = 0
mkdir("./21861", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22435 attached
, child_tidptr=0x55557a32b650) = 22435
[pid 22435] set_robust_list(0x55557a32b660, 24) = 0
[pid 22435] chdir("./21861")            = 0
[pid 22435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22435] setpgid(0, 0)               = 0
[pid 22435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22435] write(3, "1000", 4)         = 4
[pid 22435] close(3)                    = 0
[pid 22435] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22435] write(1, "executing program\n", 18executing program
) = 18
[pid 22435] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22435] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22435] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22435] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22435] exit_group(0)               = ?
[pid 22435] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22435, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21861", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21861", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21861/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21861/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21861/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21861")                        = 0
mkdir("./21862", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22436
./strace-static-x86_64: Process 22436 attached
[pid 22436] set_robust_list(0x55557a32b660, 24) = 0
[pid 22436] chdir("./21862")            = 0
[pid 22436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22436] setpgid(0, 0)               = 0
[pid 22436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22436] write(3, "1000", 4)         = 4
[pid 22436] close(3)                    = 0
[pid 22436] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22436] write(1, "executing program\n", 18executing program
) = 18
[pid 22436] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22436] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22436] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22436] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22436] exit_group(0)               = ?
[pid 22436] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22436, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21862", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21862", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21862/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21862/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21862/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21862")                        = 0
mkdir("./21863", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22437 attached
, child_tidptr=0x55557a32b650) = 22437
[pid 22437] set_robust_list(0x55557a32b660, 24) = 0
[pid 22437] chdir("./21863")            = 0
[pid 22437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22437] setpgid(0, 0)               = 0
[pid 22437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22437] write(3, "1000", 4)         = 4
[pid 22437] close(3)                    = 0
[pid 22437] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22437] write(1, "executing program\n", 18executing program
) = 18
[pid 22437] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22437] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22437] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22437] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22437] exit_group(0)               = ?
[pid 22437] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22437, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21863", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21863", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21863/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21863/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21863/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21863")                        = 0
mkdir("./21864", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22438
./strace-static-x86_64: Process 22438 attached
[pid 22438] set_robust_list(0x55557a32b660, 24) = 0
[pid 22438] chdir("./21864")            = 0
[pid 22438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22438] setpgid(0, 0)               = 0
[pid 22438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22438] write(3, "1000", 4)         = 4
[pid 22438] close(3)                    = 0
[pid 22438] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22438] write(1, "executing program\n", 18executing program
) = 18
[pid 22438] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22438] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22438] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22438] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22438] exit_group(0)               = ?
[pid 22438] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22438, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21864", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21864", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21864/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21864/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21864/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21864")                        = 0
mkdir("./21865", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22439
./strace-static-x86_64: Process 22439 attached
[pid 22439] set_robust_list(0x55557a32b660, 24) = 0
[pid 22439] chdir("./21865")            = 0
[pid 22439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22439] setpgid(0, 0)               = 0
[pid 22439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22439] write(3, "1000", 4)         = 4
[pid 22439] close(3)                    = 0
[pid 22439] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22439] write(1, "executing program\n", 18executing program
) = 18
[pid 22439] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22439] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22439] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22439] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22439] exit_group(0)               = ?
[pid 22439] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22439, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21865", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21865", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21865/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21865/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21865/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21865")                        = 0
mkdir("./21866", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22440 attached
, child_tidptr=0x55557a32b650) = 22440
[pid 22440] set_robust_list(0x55557a32b660, 24) = 0
[pid 22440] chdir("./21866")            = 0
[pid 22440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22440] setpgid(0, 0)               = 0
[pid 22440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22440] write(3, "1000", 4)         = 4
[pid 22440] close(3)                    = 0
[pid 22440] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22440] write(1, "executing program\n", 18executing program
) = 18
[pid 22440] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22440] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22440] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22440] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22440] exit_group(0)               = ?
[pid 22440] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22440, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21866", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21866", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21866/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21866/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21866/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21866")                        = 0
mkdir("./21867", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22441
./strace-static-x86_64: Process 22441 attached
[pid 22441] set_robust_list(0x55557a32b660, 24) = 0
[pid 22441] chdir("./21867")            = 0
[pid 22441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22441] setpgid(0, 0)               = 0
[pid 22441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22441] write(3, "1000", 4)         = 4
[pid 22441] close(3)                    = 0
[pid 22441] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22441] write(1, "executing program\n", 18executing program
) = 18
[pid 22441] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22441] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22441] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22441] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22441] exit_group(0)               = ?
[pid 22441] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22441, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21867", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21867", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21867/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21867/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21867/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21867")                        = 0
mkdir("./21868", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22442
./strace-static-x86_64: Process 22442 attached
[pid 22442] set_robust_list(0x55557a32b660, 24) = 0
[pid 22442] chdir("./21868")            = 0
[pid 22442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22442] setpgid(0, 0)               = 0
[pid 22442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22442] write(3, "1000", 4)         = 4
[pid 22442] close(3)                    = 0
[pid 22442] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22442] write(1, "executing program\n", 18executing program
) = 18
[pid 22442] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22442] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22442] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22442] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22442] exit_group(0)               = ?
[pid 22442] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22442, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21868", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21868", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21868/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21868/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21868/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21868")                        = 0
mkdir("./21869", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22443 attached
, child_tidptr=0x55557a32b650) = 22443
[pid 22443] set_robust_list(0x55557a32b660, 24) = 0
[pid 22443] chdir("./21869")            = 0
[pid 22443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22443] setpgid(0, 0)               = 0
[pid 22443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22443] write(3, "1000", 4)         = 4
[pid 22443] close(3)                    = 0
[pid 22443] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22443] write(1, "executing program\n", 18) = 18
[pid 22443] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22443] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22443] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22443] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22443] exit_group(0)               = ?
[pid 22443] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22443, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21869", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21869", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21869/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21869/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21869/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21869")                        = 0
mkdir("./21870", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22444 attached
, child_tidptr=0x55557a32b650) = 22444
[pid 22444] set_robust_list(0x55557a32b660, 24) = 0
[pid 22444] chdir("./21870")            = 0
[pid 22444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22444] setpgid(0, 0)               = 0
[pid 22444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22444] write(3, "1000", 4)         = 4
[pid 22444] close(3)                    = 0
[pid 22444] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22444] write(1, "executing program\n", 18executing program
) = 18
[pid 22444] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22444] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22444] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22444] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22444] exit_group(0)               = ?
[pid 22444] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22444, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21870", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21870", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21870/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21870/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21870/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21870")                        = 0
mkdir("./21871", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22445
./strace-static-x86_64: Process 22445 attached
[pid 22445] set_robust_list(0x55557a32b660, 24) = 0
[pid 22445] chdir("./21871")            = 0
[pid 22445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22445] setpgid(0, 0)               = 0
[pid 22445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22445] write(3, "1000", 4)         = 4
[pid 22445] close(3)                    = 0
[pid 22445] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22445] write(1, "executing program\n", 18executing program
) = 18
[pid 22445] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22445] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22445] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22445] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22445] exit_group(0)               = ?
[pid 22445] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22445, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21871", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21871", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21871/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21871/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21871/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21871")                        = 0
mkdir("./21872", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22446
./strace-static-x86_64: Process 22446 attached
[pid 22446] set_robust_list(0x55557a32b660, 24) = 0
[pid 22446] chdir("./21872")            = 0
[pid 22446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22446] setpgid(0, 0)               = 0
[pid 22446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22446] write(3, "1000", 4)         = 4
[pid 22446] close(3)                    = 0
[pid 22446] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22446] write(1, "executing program\n", 18executing program
) = 18
[pid 22446] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22446] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22446] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22446] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22446] exit_group(0)               = ?
[pid 22446] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22446, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21872", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21872", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21872/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21872/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21872/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21872")                        = 0
mkdir("./21873", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22447
./strace-static-x86_64: Process 22447 attached
[pid 22447] set_robust_list(0x55557a32b660, 24) = 0
[pid 22447] chdir("./21873")            = 0
[pid 22447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22447] setpgid(0, 0)               = 0
[pid 22447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22447] write(3, "1000", 4)         = 4
[pid 22447] close(3)                    = 0
[pid 22447] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22447] write(1, "executing program\n", 18executing program
) = 18
[pid 22447] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22447] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22447] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22447] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22447] exit_group(0)               = ?
[pid 22447] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22447, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21873", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21873", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21873/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21873/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21873/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21873")                        = 0
mkdir("./21874", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22448
./strace-static-x86_64: Process 22448 attached
[pid 22448] set_robust_list(0x55557a32b660, 24) = 0
[pid 22448] chdir("./21874")            = 0
[pid 22448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22448] setpgid(0, 0)               = 0
[pid 22448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22448] write(3, "1000", 4)         = 4
[pid 22448] close(3)                    = 0
[pid 22448] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22448] write(1, "executing program\n", 18executing program
) = 18
[pid 22448] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22448] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22448] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22448] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22448] exit_group(0)               = ?
[pid 22448] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22448, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21874", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21874", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21874/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21874/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21874/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21874")                        = 0
mkdir("./21875", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22449
./strace-static-x86_64: Process 22449 attached
[pid 22449] set_robust_list(0x55557a32b660, 24) = 0
[pid 22449] chdir("./21875")            = 0
[pid 22449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22449] setpgid(0, 0)               = 0
[pid 22449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22449] write(3, "1000", 4)         = 4
[pid 22449] close(3)                    = 0
[pid 22449] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22449] write(1, "executing program\n", 18executing program
) = 18
[pid 22449] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22449] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22449] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22449] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22449] exit_group(0)               = ?
[pid 22449] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22449, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21875", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21875", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21875/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21875/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21875/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21875")                        = 0
mkdir("./21876", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22450
./strace-static-x86_64: Process 22450 attached
[pid 22450] set_robust_list(0x55557a32b660, 24) = 0
[pid 22450] chdir("./21876")            = 0
[pid 22450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22450] setpgid(0, 0)               = 0
[pid 22450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22450] write(3, "1000", 4)         = 4
[pid 22450] close(3)                    = 0
[pid 22450] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22450] write(1, "executing program\n", 18executing program
) = 18
[pid 22450] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22450] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22450] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22450] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22450] exit_group(0)               = ?
[pid 22450] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22450, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21876", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21876", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21876/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21876/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21876/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21876")                        = 0
mkdir("./21877", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22451 attached
, child_tidptr=0x55557a32b650) = 22451
[pid 22451] set_robust_list(0x55557a32b660, 24) = 0
[pid 22451] chdir("./21877")            = 0
[pid 22451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22451] setpgid(0, 0)               = 0
[pid 22451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22451] write(3, "1000", 4)         = 4
[pid 22451] close(3)                    = 0
[pid 22451] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22451] write(1, "executing program\n", 18executing program
) = 18
[pid 22451] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22451] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22451] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22451] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22451] exit_group(0)               = ?
[pid 22451] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22451, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21877", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21877", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21877/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21877/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21877/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21877")                        = 0
mkdir("./21878", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22452 attached
 <unfinished ...>
[pid 22452] set_robust_list(0x55557a32b660, 24) = 0
[pid 22452] chdir("./21878" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22452
[pid 22452] <... chdir resumed>)        = 0
[pid 22452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22452] setpgid(0, 0)               = 0
[pid 22452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22452] write(3, "1000", 4)         = 4
[pid 22452] close(3)                    = 0
[pid 22452] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22452] write(1, "executing program\n", 18executing program
) = 18
[pid 22452] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22452] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22452] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22452] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22452] exit_group(0)               = ?
[pid 22452] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22452, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21878", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21878", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21878/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21878/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21878/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21878")                        = 0
mkdir("./21879", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22453
./strace-static-x86_64: Process 22453 attached
[pid 22453] set_robust_list(0x55557a32b660, 24) = 0
[pid 22453] chdir("./21879")            = 0
[pid 22453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22453] setpgid(0, 0)               = 0
[pid 22453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22453] write(3, "1000", 4)         = 4
[pid 22453] close(3)                    = 0
[pid 22453] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22453] write(1, "executing program\n", 18) = 18
[pid 22453] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22453] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22453] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22453] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22453] exit_group(0)               = ?
[pid 22453] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22453, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21879", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21879", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21879/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21879/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21879/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21879")                        = 0
mkdir("./21880", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22454
./strace-static-x86_64: Process 22454 attached
[pid 22454] set_robust_list(0x55557a32b660, 24) = 0
[pid 22454] chdir("./21880")            = 0
[pid 22454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22454] setpgid(0, 0)               = 0
[pid 22454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22454] write(3, "1000", 4)         = 4
[pid 22454] close(3)                    = 0
[pid 22454] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22454] write(1, "executing program\n", 18executing program
) = 18
[pid 22454] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22454] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22454] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22454] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22454] exit_group(0)               = ?
[pid 22454] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22454, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21880", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21880", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21880/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21880/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21880/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21880")                        = 0
mkdir("./21881", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22455
./strace-static-x86_64: Process 22455 attached
[pid 22455] set_robust_list(0x55557a32b660, 24) = 0
[pid 22455] chdir("./21881")            = 0
[pid 22455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22455] setpgid(0, 0)               = 0
[pid 22455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22455] write(3, "1000", 4)         = 4
[pid 22455] close(3)                    = 0
[pid 22455] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22455] write(1, "executing program\n", 18executing program
) = 18
[pid 22455] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22455] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22455] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22455] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22455] exit_group(0)               = ?
[pid 22455] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22455, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21881", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21881", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21881/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21881/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21881/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21881")                        = 0
mkdir("./21882", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22456
./strace-static-x86_64: Process 22456 attached
[pid 22456] set_robust_list(0x55557a32b660, 24) = 0
[pid 22456] chdir("./21882")            = 0
[pid 22456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22456] setpgid(0, 0)               = 0
[pid 22456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22456] write(3, "1000", 4)         = 4
[pid 22456] close(3)                    = 0
[pid 22456] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22456] write(1, "executing program\n", 18executing program
) = 18
[pid 22456] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22456] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22456] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22456] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22456] exit_group(0)               = ?
[pid 22456] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22456, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21882", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21882", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21882/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21882/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21882/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21882")                        = 0
mkdir("./21883", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22457
./strace-static-x86_64: Process 22457 attached
[pid 22457] set_robust_list(0x55557a32b660, 24) = 0
[pid 22457] chdir("./21883")            = 0
[pid 22457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22457] setpgid(0, 0)               = 0
[pid 22457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22457] write(3, "1000", 4)         = 4
[pid 22457] close(3)                    = 0
[pid 22457] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22457] write(1, "executing program\n", 18executing program
) = 18
[pid 22457] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22457] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22457] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22457] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22457] exit_group(0)               = ?
[pid 22457] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22457, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21883", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21883", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21883/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21883/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21883/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21883")                        = 0
mkdir("./21884", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22458
./strace-static-x86_64: Process 22458 attached
[pid 22458] set_robust_list(0x55557a32b660, 24) = 0
[pid 22458] chdir("./21884")            = 0
[pid 22458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22458] setpgid(0, 0)               = 0
[pid 22458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22458] write(3, "1000", 4)         = 4
[pid 22458] close(3)                    = 0
[pid 22458] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22458] write(1, "executing program\n", 18) = 18
[pid 22458] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22458] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22458] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22458] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22458] exit_group(0)               = ?
[pid 22458] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22458, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21884", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21884", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21884/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21884/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21884/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21884")                        = 0
mkdir("./21885", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22459 attached
, child_tidptr=0x55557a32b650) = 22459
[pid 22459] set_robust_list(0x55557a32b660, 24) = 0
[pid 22459] chdir("./21885")            = 0
[pid 22459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22459] setpgid(0, 0)               = 0
[pid 22459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22459] write(3, "1000", 4)         = 4
[pid 22459] close(3)                    = 0
[pid 22459] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22459] write(1, "executing program\n", 18executing program
) = 18
[pid 22459] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22459] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22459] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22459] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22459] exit_group(0)               = ?
[pid 22459] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22459, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21885", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21885", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21885/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21885/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21885/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21885")                        = 0
mkdir("./21886", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22460 attached
, child_tidptr=0x55557a32b650) = 22460
[pid 22460] set_robust_list(0x55557a32b660, 24) = 0
[pid 22460] chdir("./21886")            = 0
[pid 22460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22460] setpgid(0, 0)               = 0
[pid 22460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22460] write(3, "1000", 4)         = 4
[pid 22460] close(3)                    = 0
[pid 22460] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22460] write(1, "executing program\n", 18executing program
) = 18
[pid 22460] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22460] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22460] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22460] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22460] exit_group(0)               = ?
[pid 22460] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22460, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21886", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21886", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21886/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21886/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21886/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21886")                        = 0
mkdir("./21887", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22461
./strace-static-x86_64: Process 22461 attached
[pid 22461] set_robust_list(0x55557a32b660, 24) = 0
[pid 22461] chdir("./21887")            = 0
[pid 22461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22461] setpgid(0, 0)               = 0
[pid 22461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22461] write(3, "1000", 4)         = 4
[pid 22461] close(3)                    = 0
executing program
[pid 22461] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22461] write(1, "executing program\n", 18) = 18
[pid 22461] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22461] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22461] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22461] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22461] exit_group(0)               = ?
[pid 22461] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22461, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21887", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21887", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21887/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21887/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21887/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21887")                        = 0
mkdir("./21888", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22462
./strace-static-x86_64: Process 22462 attached
[pid 22462] set_robust_list(0x55557a32b660, 24) = 0
[pid 22462] chdir("./21888")            = 0
[pid 22462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22462] setpgid(0, 0)               = 0
[pid 22462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22462] write(3, "1000", 4)         = 4
[pid 22462] close(3)                    = 0
[pid 22462] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22462] write(1, "executing program\n", 18executing program
) = 18
[pid 22462] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22462] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22462] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22462] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22462] exit_group(0)               = ?
[pid 22462] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22462, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21888", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21888", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21888/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21888/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21888/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21888")                        = 0
mkdir("./21889", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22463
./strace-static-x86_64: Process 22463 attached
[pid 22463] set_robust_list(0x55557a32b660, 24) = 0
[pid 22463] chdir("./21889")            = 0
[pid 22463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22463] setpgid(0, 0)               = 0
[pid 22463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22463] write(3, "1000", 4)         = 4
[pid 22463] close(3)                    = 0
[pid 22463] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22463] write(1, "executing program\n", 18executing program
) = 18
[pid 22463] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22463] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22463] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22463] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22463] exit_group(0)               = ?
[pid 22463] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22463, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21889", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21889", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21889/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21889/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21889/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21889")                        = 0
mkdir("./21890", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22464
./strace-static-x86_64: Process 22464 attached
[pid 22464] set_robust_list(0x55557a32b660, 24) = 0
[pid 22464] chdir("./21890")            = 0
[pid 22464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22464] setpgid(0, 0)               = 0
[pid 22464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22464] write(3, "1000", 4)         = 4
[pid 22464] close(3)                    = 0
[pid 22464] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22464] write(1, "executing program\n", 18executing program
) = 18
[pid 22464] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22464] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22464] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22464] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22464] exit_group(0)               = ?
[pid 22464] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22464, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21890", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21890", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21890/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21890/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21890/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21890")                        = 0
mkdir("./21891", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22465 attached
, child_tidptr=0x55557a32b650) = 22465
[pid 22465] set_robust_list(0x55557a32b660, 24) = 0
[pid 22465] chdir("./21891")            = 0
[pid 22465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22465] setpgid(0, 0)               = 0
[pid 22465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22465] write(3, "1000", 4)         = 4
[pid 22465] close(3)                    = 0
[pid 22465] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22465] write(1, "executing program\n", 18executing program
) = 18
[pid 22465] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22465] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22465] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22465] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22465] exit_group(0)               = ?
[pid 22465] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22465, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21891", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21891", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21891/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21891/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21891/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21891")                        = 0
mkdir("./21892", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22466 attached
, child_tidptr=0x55557a32b650) = 22466
[pid 22466] set_robust_list(0x55557a32b660, 24) = 0
[pid 22466] chdir("./21892")            = 0
[pid 22466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22466] setpgid(0, 0)               = 0
[pid 22466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22466] write(3, "1000", 4)         = 4
[pid 22466] close(3)                    = 0
[pid 22466] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22466] write(1, "executing program\n", 18executing program
) = 18
[pid 22466] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22466] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22466] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22466] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22466] exit_group(0)               = ?
[pid 22466] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22466, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21892", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21892", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21892/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21892/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21892/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21892")                        = 0
mkdir("./21893", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22467
./strace-static-x86_64: Process 22467 attached
[pid 22467] set_robust_list(0x55557a32b660, 24) = 0
[pid 22467] chdir("./21893")            = 0
[pid 22467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22467] setpgid(0, 0)               = 0
[pid 22467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22467] write(3, "1000", 4)         = 4
[pid 22467] close(3)                    = 0
[pid 22467] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22467] write(1, "executing program\n", 18executing program
) = 18
[pid 22467] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22467] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22467] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22467] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22467] exit_group(0)               = ?
[pid 22467] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22467, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21893", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21893", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21893/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21893/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21893/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21893")                        = 0
mkdir("./21894", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22468
./strace-static-x86_64: Process 22468 attached
[pid 22468] set_robust_list(0x55557a32b660, 24) = 0
[pid 22468] chdir("./21894")            = 0
[pid 22468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22468] setpgid(0, 0)               = 0
[pid 22468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22468] write(3, "1000", 4)         = 4
[pid 22468] close(3)                    = 0
[pid 22468] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22468] write(1, "executing program\n", 18executing program
) = 18
[pid 22468] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22468] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22468] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22468] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22468] exit_group(0)               = ?
[pid 22468] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22468, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21894", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21894", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21894/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21894/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21894/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21894")                        = 0
mkdir("./21895", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22469
./strace-static-x86_64: Process 22469 attached
[pid 22469] set_robust_list(0x55557a32b660, 24) = 0
[pid 22469] chdir("./21895")            = 0
[pid 22469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22469] setpgid(0, 0)               = 0
[pid 22469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22469] write(3, "1000", 4)         = 4
[pid 22469] close(3)                    = 0
[pid 22469] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22469] write(1, "executing program\n", 18) = 18
[pid 22469] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22469] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22469] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22469] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22469] exit_group(0)               = ?
[pid 22469] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22469, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21895", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21895", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21895/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21895/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21895/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21895")                        = 0
mkdir("./21896", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22470 attached
, child_tidptr=0x55557a32b650) = 22470
[pid 22470] set_robust_list(0x55557a32b660, 24) = 0
[pid 22470] chdir("./21896")            = 0
[pid 22470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22470] setpgid(0, 0)               = 0
[pid 22470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22470] write(3, "1000", 4)         = 4
[pid 22470] close(3)                    = 0
[pid 22470] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22470] write(1, "executing program\n", 18executing program
) = 18
[pid 22470] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22470] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22470] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22470] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22470] exit_group(0)               = ?
[pid 22470] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22470, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21896", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21896", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21896/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21896/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21896/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21896")                        = 0
mkdir("./21897", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22471
./strace-static-x86_64: Process 22471 attached
[pid 22471] set_robust_list(0x55557a32b660, 24) = 0
[pid 22471] chdir("./21897")            = 0
[pid 22471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22471] setpgid(0, 0)               = 0
[pid 22471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22471] write(3, "1000", 4)         = 4
[pid 22471] close(3)                    = 0
[pid 22471] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22471] write(1, "executing program\n", 18executing program
) = 18
[pid 22471] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22471] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22471] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22471] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22471] exit_group(0)               = ?
[pid 22471] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22471, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21897", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21897", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21897/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21897/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21897/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21897")                        = 0
mkdir("./21898", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22472
./strace-static-x86_64: Process 22472 attached
[pid 22472] set_robust_list(0x55557a32b660, 24) = 0
[pid 22472] chdir("./21898")            = 0
[pid 22472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22472] setpgid(0, 0)               = 0
[pid 22472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22472] write(3, "1000", 4)         = 4
[pid 22472] close(3)                    = 0
[pid 22472] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22472] write(1, "executing program\n", 18executing program
) = 18
[pid 22472] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22472] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22472] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22472] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22472] exit_group(0)               = ?
[pid 22472] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22472, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21898", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21898", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21898/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21898/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21898/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21898")                        = 0
mkdir("./21899", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22473 attached
, child_tidptr=0x55557a32b650) = 22473
[pid 22473] set_robust_list(0x55557a32b660, 24) = 0
[pid 22473] chdir("./21899")            = 0
[pid 22473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22473] setpgid(0, 0)               = 0
[pid 22473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22473] write(3, "1000", 4)         = 4
[pid 22473] close(3)                    = 0
[pid 22473] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22473] write(1, "executing program\n", 18executing program
) = 18
[pid 22473] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22473] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22473] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22473] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22473] exit_group(0)               = ?
[pid 22473] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22473, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21899", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21899", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21899/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21899/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21899/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21899")                        = 0
mkdir("./21900", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22474
./strace-static-x86_64: Process 22474 attached
[pid 22474] set_robust_list(0x55557a32b660, 24) = 0
[pid 22474] chdir("./21900")            = 0
[pid 22474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22474] setpgid(0, 0)               = 0
[pid 22474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22474] write(3, "1000", 4)         = 4
[pid 22474] close(3)                    = 0
[pid 22474] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22474] write(1, "executing program\n", 18executing program
) = 18
[pid 22474] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22474] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22474] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22474] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22474] exit_group(0)               = ?
[pid 22474] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22474, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21900", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21900", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21900/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21900/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21900/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21900")                        = 0
mkdir("./21901", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22475
./strace-static-x86_64: Process 22475 attached
[pid 22475] set_robust_list(0x55557a32b660, 24) = 0
[pid 22475] chdir("./21901")            = 0
[pid 22475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22475] setpgid(0, 0)               = 0
[pid 22475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22475] write(3, "1000", 4)         = 4
[pid 22475] close(3)                    = 0
[pid 22475] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22475] write(1, "executing program\n", 18) = 18
[pid 22475] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22475] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22475] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22475] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22475] exit_group(0)               = ?
[pid 22475] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22475, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21901", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21901", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21901/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21901/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21901/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21901")                        = 0
mkdir("./21902", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22476 attached
, child_tidptr=0x55557a32b650) = 22476
[pid 22476] set_robust_list(0x55557a32b660, 24) = 0
[pid 22476] chdir("./21902")            = 0
[pid 22476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22476] setpgid(0, 0)               = 0
[pid 22476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22476] write(3, "1000", 4)         = 4
[pid 22476] close(3)                    = 0
[pid 22476] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22476] write(1, "executing program\n", 18executing program
) = 18
[pid 22476] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22476] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22476] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22476] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22476] exit_group(0)               = ?
[pid 22476] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22476, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21902", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21902", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21902/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21902/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21902/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21902")                        = 0
mkdir("./21903", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22477 attached
, child_tidptr=0x55557a32b650) = 22477
[pid 22477] set_robust_list(0x55557a32b660, 24) = 0
[pid 22477] chdir("./21903")            = 0
[pid 22477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22477] setpgid(0, 0)               = 0
[pid 22477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22477] write(3, "1000", 4)         = 4
[pid 22477] close(3)                    = 0
[pid 22477] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22477] write(1, "executing program\n", 18executing program
) = 18
[pid 22477] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22477] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22477] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22477] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22477] exit_group(0)               = ?
[pid 22477] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22477, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21903", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21903", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21903/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21903/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21903/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21903")                        = 0
mkdir("./21904", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22478
./strace-static-x86_64: Process 22478 attached
[pid 22478] set_robust_list(0x55557a32b660, 24) = 0
[pid 22478] chdir("./21904")            = 0
[pid 22478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22478] setpgid(0, 0)               = 0
[pid 22478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22478] write(3, "1000", 4)         = 4
[pid 22478] close(3)                    = 0
[pid 22478] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22478] write(1, "executing program\n", 18) = 18
[pid 22478] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22478] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22478] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22478] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22478] exit_group(0)               = ?
[pid 22478] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22478, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21904", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21904", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21904/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21904/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21904/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21904")                        = 0
mkdir("./21905", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22479
./strace-static-x86_64: Process 22479 attached
[pid 22479] set_robust_list(0x55557a32b660, 24) = 0
[pid 22479] chdir("./21905")            = 0
[pid 22479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22479] setpgid(0, 0)               = 0
[pid 22479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22479] write(3, "1000", 4)         = 4
[pid 22479] close(3)                    = 0
[pid 22479] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22479] write(1, "executing program\n", 18executing program
) = 18
[pid 22479] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22479] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22479] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22479] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22479] exit_group(0)               = ?
[pid 22479] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22479, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21905", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21905", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21905/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21905/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21905/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21905")                        = 0
mkdir("./21906", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22480 attached
, child_tidptr=0x55557a32b650) = 22480
[pid 22480] set_robust_list(0x55557a32b660, 24) = 0
[pid 22480] chdir("./21906")            = 0
[pid 22480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22480] setpgid(0, 0)               = 0
[pid 22480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22480] write(3, "1000", 4)         = 4
[pid 22480] close(3)                    = 0
[pid 22480] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22480] write(1, "executing program\n", 18) = 18
[pid 22480] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22480] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22480] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22480] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22480] exit_group(0)               = ?
[pid 22480] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22480, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21906", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21906", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21906/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21906/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21906/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21906")                        = 0
mkdir("./21907", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22481
./strace-static-x86_64: Process 22481 attached
[pid 22481] set_robust_list(0x55557a32b660, 24) = 0
[pid 22481] chdir("./21907")            = 0
[pid 22481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22481] setpgid(0, 0)               = 0
[pid 22481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22481] write(3, "1000", 4)         = 4
[pid 22481] close(3)                    = 0
[pid 22481] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22481] write(1, "executing program\n", 18) = 18
[pid 22481] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22481] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22481] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22481] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22481] exit_group(0)               = ?
[pid 22481] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22481, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21907", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21907", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21907/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21907/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21907/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21907")                        = 0
mkdir("./21908", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22482
./strace-static-x86_64: Process 22482 attached
[pid 22482] set_robust_list(0x55557a32b660, 24) = 0
[pid 22482] chdir("./21908")            = 0
[pid 22482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22482] setpgid(0, 0)               = 0
[pid 22482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22482] write(3, "1000", 4)         = 4
[pid 22482] close(3)                    = 0
[pid 22482] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22482] write(1, "executing program\n", 18) = 18
[pid 22482] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22482] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22482] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22482] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22482] exit_group(0)               = ?
[pid 22482] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22482, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21908", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21908", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21908/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21908/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21908/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21908")                        = 0
mkdir("./21909", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22483
./strace-static-x86_64: Process 22483 attached
[pid 22483] set_robust_list(0x55557a32b660, 24) = 0
[pid 22483] chdir("./21909")            = 0
[pid 22483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22483] setpgid(0, 0)               = 0
[pid 22483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22483] write(3, "1000", 4)         = 4
[pid 22483] close(3)                    = 0
[pid 22483] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22483] write(1, "executing program\n", 18executing program
) = 18
[pid 22483] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22483] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22483] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22483] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22483] exit_group(0)               = ?
[pid 22483] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22483, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21909", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21909", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21909/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21909/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21909/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21909")                        = 0
mkdir("./21910", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22484
./strace-static-x86_64: Process 22484 attached
[pid 22484] set_robust_list(0x55557a32b660, 24) = 0
[pid 22484] chdir("./21910")            = 0
[pid 22484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22484] setpgid(0, 0)               = 0
[pid 22484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22484] write(3, "1000", 4)         = 4
[pid 22484] close(3)                    = 0
[pid 22484] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22484] write(1, "executing program\n", 18) = 18
[pid 22484] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22484] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22484] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22484] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22484] exit_group(0)               = ?
[pid 22484] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22484, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21910", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21910", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21910/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21910/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21910/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21910")                        = 0
mkdir("./21911", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22485
./strace-static-x86_64: Process 22485 attached
[pid 22485] set_robust_list(0x55557a32b660, 24) = 0
[pid 22485] chdir("./21911")            = 0
[pid 22485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22485] setpgid(0, 0)               = 0
[pid 22485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22485] write(3, "1000", 4)         = 4
[pid 22485] close(3)                    = 0
[pid 22485] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22485] write(1, "executing program\n", 18) = 18
[pid 22485] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22485] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22485] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22485] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22485] exit_group(0)               = ?
[pid 22485] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22485, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21911", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21911", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21911/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21911/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21911/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21911")                        = 0
mkdir("./21912", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22486
./strace-static-x86_64: Process 22486 attached
[pid 22486] set_robust_list(0x55557a32b660, 24) = 0
[pid 22486] chdir("./21912")            = 0
[pid 22486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22486] setpgid(0, 0)               = 0
[pid 22486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22486] write(3, "1000", 4)         = 4
[pid 22486] close(3)                    = 0
[pid 22486] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22486] write(1, "executing program\n", 18executing program
) = 18
[pid 22486] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22486] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22486] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22486] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22486] exit_group(0)               = ?
[pid 22486] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22486, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21912", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21912", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21912/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21912/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21912/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21912")                        = 0
mkdir("./21913", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22487
./strace-static-x86_64: Process 22487 attached
[pid 22487] set_robust_list(0x55557a32b660, 24) = 0
[pid 22487] chdir("./21913")            = 0
[pid 22487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22487] setpgid(0, 0)               = 0
[pid 22487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22487] write(3, "1000", 4)         = 4
[pid 22487] close(3)                    = 0
[pid 22487] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22487] write(1, "executing program\n", 18) = 18
[pid 22487] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22487] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22487] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22487] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22487] exit_group(0)               = ?
[pid 22487] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22487, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21913", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21913", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21913/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21913/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21913/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21913")                        = 0
mkdir("./21914", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22488 attached
, child_tidptr=0x55557a32b650) = 22488
[pid 22488] set_robust_list(0x55557a32b660, 24) = 0
[pid 22488] chdir("./21914")            = 0
[pid 22488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22488] setpgid(0, 0)               = 0
[pid 22488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22488] write(3, "1000", 4)         = 4
[pid 22488] close(3)                    = 0
[pid 22488] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22488] write(1, "executing program\n", 18) = 18
[pid 22488] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22488] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22488] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22488] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22488] exit_group(0)               = ?
[pid 22488] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22488, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21914", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21914", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21914/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21914/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21914/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21914")                        = 0
mkdir("./21915", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22489
./strace-static-x86_64: Process 22489 attached
[pid 22489] set_robust_list(0x55557a32b660, 24) = 0
[pid 22489] chdir("./21915")            = 0
[pid 22489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22489] setpgid(0, 0)               = 0
[pid 22489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22489] write(3, "1000", 4)         = 4
[pid 22489] close(3)                    = 0
[pid 22489] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22489] write(1, "executing program\n", 18) = 18
[pid 22489] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22489] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22489] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22489] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22489] exit_group(0)               = ?
[pid 22489] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22489, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21915", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21915", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21915/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21915/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21915/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21915")                        = 0
mkdir("./21916", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22490
./strace-static-x86_64: Process 22490 attached
[pid 22490] set_robust_list(0x55557a32b660, 24) = 0
[pid 22490] chdir("./21916")            = 0
[pid 22490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22490] setpgid(0, 0)               = 0
[pid 22490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22490] write(3, "1000", 4)         = 4
[pid 22490] close(3)                    = 0
[pid 22490] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22490] write(1, "executing program\n", 18executing program
) = 18
[pid 22490] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22490] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22490] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22490] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22490] exit_group(0)               = ?
[pid 22490] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22490, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21916", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21916", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21916/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21916/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21916/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21916")                        = 0
mkdir("./21917", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22491 attached
, child_tidptr=0x55557a32b650) = 22491
[pid 22491] set_robust_list(0x55557a32b660, 24) = 0
[pid 22491] chdir("./21917")            = 0
[pid 22491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22491] setpgid(0, 0)               = 0
[pid 22491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22491] write(3, "1000", 4)         = 4
[pid 22491] close(3)                    = 0
[pid 22491] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22491] write(1, "executing program\n", 18executing program
) = 18
[pid 22491] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22491] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22491] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22491] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22491] exit_group(0)               = ?
[pid 22491] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22491, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21917", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21917", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21917/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21917/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21917/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21917")                        = 0
mkdir("./21918", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22492
./strace-static-x86_64: Process 22492 attached
[pid 22492] set_robust_list(0x55557a32b660, 24) = 0
[pid 22492] chdir("./21918")            = 0
[pid 22492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22492] setpgid(0, 0)               = 0
[pid 22492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22492] write(3, "1000", 4)         = 4
[pid 22492] close(3)                    = 0
[pid 22492] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22492] write(1, "executing program\n", 18executing program
) = 18
[pid 22492] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22492] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22492] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22492] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22492] exit_group(0)               = ?
[pid 22492] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22492, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21918", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21918", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21918/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21918/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21918/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21918")                        = 0
mkdir("./21919", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22493 attached
, child_tidptr=0x55557a32b650) = 22493
[pid 22493] set_robust_list(0x55557a32b660, 24) = 0
[pid 22493] chdir("./21919")            = 0
[pid 22493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22493] setpgid(0, 0)               = 0
[pid 22493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22493] write(3, "1000", 4)         = 4
[pid 22493] close(3)                    = 0
[pid 22493] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22493] write(1, "executing program\n", 18executing program
) = 18
[pid 22493] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22493] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22493] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22493] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22493] exit_group(0)               = ?
[pid 22493] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22493, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21919", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21919", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21919/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21919/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21919/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21919")                        = 0
mkdir("./21920", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22494
./strace-static-x86_64: Process 22494 attached
[pid 22494] set_robust_list(0x55557a32b660, 24) = 0
[pid 22494] chdir("./21920")            = 0
[pid 22494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22494] setpgid(0, 0)               = 0
[pid 22494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22494] write(3, "1000", 4)         = 4
[pid 22494] close(3)                    = 0
[pid 22494] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22494] write(1, "executing program\n", 18executing program
) = 18
[pid 22494] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22494] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22494] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22494] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22494] exit_group(0)               = ?
[pid 22494] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22494, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21920", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21920", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21920/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21920/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21920/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21920")                        = 0
mkdir("./21921", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22495
./strace-static-x86_64: Process 22495 attached
[pid 22495] set_robust_list(0x55557a32b660, 24) = 0
[pid 22495] chdir("./21921")            = 0
[pid 22495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22495] setpgid(0, 0)               = 0
[pid 22495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22495] write(3, "1000", 4)         = 4
[pid 22495] close(3)                    = 0
[pid 22495] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22495] write(1, "executing program\n", 18executing program
) = 18
[pid 22495] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22495] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22495] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22495] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22495] exit_group(0)               = ?
[pid 22495] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22495, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21921", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21921", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21921/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21921/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21921/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21921")                        = 0
mkdir("./21922", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22496
./strace-static-x86_64: Process 22496 attached
[pid 22496] set_robust_list(0x55557a32b660, 24) = 0
[pid 22496] chdir("./21922")            = 0
[pid 22496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22496] setpgid(0, 0)               = 0
[pid 22496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22496] write(3, "1000", 4)         = 4
[pid 22496] close(3)                    = 0
[pid 22496] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22496] write(1, "executing program\n", 18executing program
) = 18
[pid 22496] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22496] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22496] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22496] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22496] exit_group(0)               = ?
[pid 22496] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22496, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21922", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21922", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21922/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21922/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21922/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21922")                        = 0
mkdir("./21923", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22497 attached
 <unfinished ...>
[pid 22497] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22497
[pid 22497] chdir("./21923")            = 0
[pid 22497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22497] setpgid(0, 0)               = 0
[pid 22497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22497] write(3, "1000", 4)         = 4
[pid 22497] close(3)                    = 0
[pid 22497] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22497] write(1, "executing program\n", 18executing program
) = 18
[pid 22497] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22497] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22497] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22497] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22497] exit_group(0)               = ?
[pid 22497] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22497, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21923", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21923", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21923/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21923/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21923/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21923")                        = 0
mkdir("./21924", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22498
./strace-static-x86_64: Process 22498 attached
[pid 22498] set_robust_list(0x55557a32b660, 24) = 0
[pid 22498] chdir("./21924")            = 0
[pid 22498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22498] setpgid(0, 0)               = 0
[pid 22498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22498] write(3, "1000", 4)         = 4
[pid 22498] close(3)                    = 0
[pid 22498] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22498] write(1, "executing program\n", 18executing program
) = 18
[pid 22498] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22498] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22498] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22498] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22498] exit_group(0)               = ?
[pid 22498] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22498, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21924", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21924", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21924/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21924/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21924/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21924")                        = 0
mkdir("./21925", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22499
./strace-static-x86_64: Process 22499 attached
[pid 22499] set_robust_list(0x55557a32b660, 24) = 0
[pid 22499] chdir("./21925")            = 0
[pid 22499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22499] setpgid(0, 0)               = 0
[pid 22499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22499] write(3, "1000", 4)         = 4
[pid 22499] close(3)                    = 0
[pid 22499] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22499] write(1, "executing program\n", 18executing program
) = 18
[pid 22499] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22499] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22499] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22499] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22499] exit_group(0)               = ?
[pid 22499] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22499, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21925", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21925", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21925/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21925/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21925/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21925")                        = 0
mkdir("./21926", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22500
./strace-static-x86_64: Process 22500 attached
[pid 22500] set_robust_list(0x55557a32b660, 24) = 0
[pid 22500] chdir("./21926")            = 0
[pid 22500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22500] setpgid(0, 0)               = 0
[pid 22500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22500] write(3, "1000", 4)         = 4
[pid 22500] close(3)                    = 0
[pid 22500] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22500] write(1, "executing program\n", 18) = 18
[pid 22500] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22500] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22500] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22500] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22500] exit_group(0)               = ?
[pid 22500] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22500, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21926", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21926", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21926/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21926/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21926/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21926")                        = 0
mkdir("./21927", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22501 attached
, child_tidptr=0x55557a32b650) = 22501
[pid 22501] set_robust_list(0x55557a32b660, 24) = 0
[pid 22501] chdir("./21927")            = 0
[pid 22501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22501] setpgid(0, 0)               = 0
[pid 22501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22501] write(3, "1000", 4)         = 4
[pid 22501] close(3)                    = 0
[pid 22501] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22501] write(1, "executing program\n", 18executing program
) = 18
[pid 22501] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22501] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22501] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22501] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22501] exit_group(0)               = ?
[pid 22501] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22501, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21927", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21927", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21927/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21927/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21927/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21927")                        = 0
mkdir("./21928", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22502
./strace-static-x86_64: Process 22502 attached
[pid 22502] set_robust_list(0x55557a32b660, 24) = 0
[pid 22502] chdir("./21928")            = 0
[pid 22502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22502] setpgid(0, 0)               = 0
[pid 22502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22502] write(3, "1000", 4)         = 4
[pid 22502] close(3)                    = 0
[pid 22502] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22502] write(1, "executing program\n", 18) = 18
[pid 22502] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22502] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22502] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22502] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22502] exit_group(0)               = ?
[pid 22502] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22502, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21928", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21928", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21928/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21928/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21928/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21928")                        = 0
mkdir("./21929", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22503
./strace-static-x86_64: Process 22503 attached
[pid 22503] set_robust_list(0x55557a32b660, 24) = 0
[pid 22503] chdir("./21929")            = 0
[pid 22503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22503] setpgid(0, 0)               = 0
[pid 22503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22503] write(3, "1000", 4)         = 4
[pid 22503] close(3)                    = 0
[pid 22503] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22503] write(1, "executing program\n", 18executing program
) = 18
[pid 22503] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22503] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22503] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22503] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22503] exit_group(0)               = ?
[pid 22503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22503, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21929", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21929", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21929/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21929/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21929/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21929")                        = 0
mkdir("./21930", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22504
./strace-static-x86_64: Process 22504 attached
[pid 22504] set_robust_list(0x55557a32b660, 24) = 0
[pid 22504] chdir("./21930")            = 0
[pid 22504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22504] setpgid(0, 0)               = 0
[pid 22504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22504] write(3, "1000", 4)         = 4
[pid 22504] close(3)                    = 0
[pid 22504] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22504] write(1, "executing program\n", 18executing program
) = 18
[pid 22504] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22504] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22504] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22504] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22504] exit_group(0)               = ?
[pid 22504] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22504, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21930", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21930", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21930/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21930/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21930/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21930")                        = 0
mkdir("./21931", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22505
./strace-static-x86_64: Process 22505 attached
[pid 22505] set_robust_list(0x55557a32b660, 24) = 0
[pid 22505] chdir("./21931")            = 0
[pid 22505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22505] setpgid(0, 0)               = 0
[pid 22505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22505] write(3, "1000", 4)         = 4
[pid 22505] close(3)                    = 0
[pid 22505] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22505] write(1, "executing program\n", 18executing program
) = 18
[pid 22505] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22505] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22505] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22505] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22505] exit_group(0)               = ?
[pid 22505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22505, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21931", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21931", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21931/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21931/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21931/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21931")                        = 0
mkdir("./21932", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22506
./strace-static-x86_64: Process 22506 attached
[pid 22506] set_robust_list(0x55557a32b660, 24) = 0
[pid 22506] chdir("./21932")            = 0
[pid 22506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22506] setpgid(0, 0)               = 0
[pid 22506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22506] write(3, "1000", 4)         = 4
[pid 22506] close(3)                    = 0
[pid 22506] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22506] write(1, "executing program\n", 18executing program
) = 18
[pid 22506] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22506] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22506] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22506] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22506] exit_group(0)               = ?
[pid 22506] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22506, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21932", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21932", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21932/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21932/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21932/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21932")                        = 0
mkdir("./21933", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22507
./strace-static-x86_64: Process 22507 attached
[pid 22507] set_robust_list(0x55557a32b660, 24) = 0
[pid 22507] chdir("./21933")            = 0
[pid 22507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22507] setpgid(0, 0)               = 0
[pid 22507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22507] write(3, "1000", 4)         = 4
[pid 22507] close(3)                    = 0
[pid 22507] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22507] write(1, "executing program\n", 18) = 18
[pid 22507] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22507] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22507] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22507] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22507] exit_group(0)               = ?
[pid 22507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22507, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21933", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21933", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21933/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21933/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21933/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21933")                        = 0
mkdir("./21934", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22508
./strace-static-x86_64: Process 22508 attached
[pid 22508] set_robust_list(0x55557a32b660, 24) = 0
[pid 22508] chdir("./21934")            = 0
[pid 22508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22508] setpgid(0, 0)               = 0
[pid 22508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22508] write(3, "1000", 4)         = 4
[pid 22508] close(3)                    = 0
[pid 22508] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22508] write(1, "executing program\n", 18) = 18
[pid 22508] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22508] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22508] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22508] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22508] exit_group(0)               = ?
[pid 22508] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22508, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21934", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21934", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21934/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21934/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21934/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21934")                        = 0
mkdir("./21935", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22510
./strace-static-x86_64: Process 22510 attached
[pid 22510] set_robust_list(0x55557a32b660, 24) = 0
[pid 22510] chdir("./21935")            = 0
[pid 22510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22510] setpgid(0, 0)               = 0
[pid 22510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22510] write(3, "1000", 4)         = 4
[pid 22510] close(3)                    = 0
[pid 22510] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22510] write(1, "executing program\n", 18executing program
) = 18
[pid 22510] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22510] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22510] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22510] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22510] exit_group(0)               = ?
[pid 22510] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22510, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21935", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21935", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21935/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21935/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21935/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21935")                        = 0
mkdir("./21936", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22511 attached
 <unfinished ...>
[pid 22511] set_robust_list(0x55557a32b660, 24) = 0
[pid 22511] chdir("./21936" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22511
[pid 22511] <... chdir resumed>)        = 0
[pid 22511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22511] setpgid(0, 0)               = 0
[pid 22511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22511] write(3, "1000", 4)         = 4
[pid 22511] close(3)                    = 0
[pid 22511] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22511] write(1, "executing program\n", 18executing program
) = 18
[pid 22511] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22511] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22511] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22511] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22511] exit_group(0)               = ?
[pid 22511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22511, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21936", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21936", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21936/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21936/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21936/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21936")                        = 0
mkdir("./21937", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22512
./strace-static-x86_64: Process 22512 attached
[pid 22512] set_robust_list(0x55557a32b660, 24) = 0
[pid 22512] chdir("./21937")            = 0
[pid 22512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22512] setpgid(0, 0)               = 0
[pid 22512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22512] write(3, "1000", 4)         = 4
[pid 22512] close(3)                    = 0
[pid 22512] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22512] write(1, "executing program\n", 18executing program
) = 18
[pid 22512] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22512] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22512] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22512] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22512] exit_group(0)               = ?
[pid 22512] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22512, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21937", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21937", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21937/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21937/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21937/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21937")                        = 0
mkdir("./21938", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22513 attached
, child_tidptr=0x55557a32b650) = 22513
[pid 22513] set_robust_list(0x55557a32b660, 24) = 0
[pid 22513] chdir("./21938")            = 0
[pid 22513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22513] setpgid(0, 0)               = 0
[pid 22513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22513] write(3, "1000", 4)         = 4
[pid 22513] close(3)                    = 0
[pid 22513] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22513] write(1, "executing program\n", 18executing program
) = 18
[pid 22513] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22513] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22513] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22513] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22513] exit_group(0)               = ?
[pid 22513] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22513, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21938", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21938", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21938/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21938/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21938/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21938")                        = 0
mkdir("./21939", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22514
./strace-static-x86_64: Process 22514 attached
[pid 22514] set_robust_list(0x55557a32b660, 24) = 0
[pid 22514] chdir("./21939")            = 0
[pid 22514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22514] setpgid(0, 0)               = 0
[pid 22514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22514] write(3, "1000", 4)         = 4
[pid 22514] close(3)                    = 0
[pid 22514] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22514] write(1, "executing program\n", 18executing program
) = 18
[pid 22514] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22514] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22514] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22514] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22514] exit_group(0)               = ?
[pid 22514] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22514, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21939", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21939", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21939/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21939/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21939/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21939")                        = 0
mkdir("./21940", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22515 attached
, child_tidptr=0x55557a32b650) = 22515
[pid 22515] set_robust_list(0x55557a32b660, 24) = 0
[pid 22515] chdir("./21940")            = 0
[pid 22515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22515] setpgid(0, 0)               = 0
[pid 22515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22515] write(3, "1000", 4)         = 4
[pid 22515] close(3)                    = 0
[pid 22515] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22515] write(1, "executing program\n", 18executing program
) = 18
[pid 22515] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22515] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22515] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22515] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22515] exit_group(0)               = ?
[pid 22515] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22515, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21940", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21940", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21940/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21940/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21940/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21940")                        = 0
mkdir("./21941", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22516
./strace-static-x86_64: Process 22516 attached
[pid 22516] set_robust_list(0x55557a32b660, 24) = 0
[pid 22516] chdir("./21941")            = 0
[pid 22516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22516] setpgid(0, 0)               = 0
[pid 22516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22516] write(3, "1000", 4)         = 4
[pid 22516] close(3)                    = 0
[pid 22516] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22516] write(1, "executing program\n", 18executing program
) = 18
[pid 22516] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22516] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22516] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22516] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22516] exit_group(0)               = ?
[pid 22516] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22516, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21941", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21941", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21941/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21941/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21941/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21941")                        = 0
mkdir("./21942", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22517 attached
 <unfinished ...>
[pid 22517] set_robust_list(0x55557a32b660, 24) = 0
[pid 22517] chdir("./21942")            = 0
[pid 22517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22517] setpgid(0, 0)               = 0
[pid 22517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22517
[pid 22517] <... openat resumed>)       = 3
[pid 22517] write(3, "1000", 4executing program
)         = 4
[pid 22517] close(3)                    = 0
[pid 22517] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22517] write(1, "executing program\n", 18) = 18
[pid 22517] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22517] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22517] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22517] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22517] exit_group(0)               = ?
[pid 22517] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22517, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21942", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21942", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21942/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21942/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21942/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21942")                        = 0
mkdir("./21943", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22518
./strace-static-x86_64: Process 22518 attached
[pid 22518] set_robust_list(0x55557a32b660, 24) = 0
[pid 22518] chdir("./21943")            = 0
[pid 22518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22518] setpgid(0, 0)               = 0
[pid 22518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22518] write(3, "1000", 4)         = 4
[pid 22518] close(3)                    = 0
[pid 22518] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22518] write(1, "executing program\n", 18executing program
) = 18
[pid 22518] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22518] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22518] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22518] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22518] exit_group(0)               = ?
[pid 22518] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22518, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21943", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21943", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21943/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21943/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21943/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21943")                        = 0
mkdir("./21944", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22519 attached
, child_tidptr=0x55557a32b650) = 22519
[pid 22519] set_robust_list(0x55557a32b660, 24) = 0
[pid 22519] chdir("./21944")            = 0
[pid 22519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22519] setpgid(0, 0)               = 0
[pid 22519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22519] write(3, "1000", 4)         = 4
[pid 22519] close(3)                    = 0
[pid 22519] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22519] write(1, "executing program\n", 18executing program
) = 18
[pid 22519] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22519] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22519] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22519] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22519] exit_group(0)               = ?
[pid 22519] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22519, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21944", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21944", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21944/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21944/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21944/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21944")                        = 0
mkdir("./21945", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22520
./strace-static-x86_64: Process 22520 attached
[pid 22520] set_robust_list(0x55557a32b660, 24) = 0
[pid 22520] chdir("./21945")            = 0
[pid 22520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22520] setpgid(0, 0)               = 0
[pid 22520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22520] write(3, "1000", 4)         = 4
[pid 22520] close(3)                    = 0
[pid 22520] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22520] write(1, "executing program\n", 18executing program
) = 18
[pid 22520] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22520] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22520] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22520] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22520] exit_group(0)               = ?
[pid 22520] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22520, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21945", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21945", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21945/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21945/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21945/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21945")                        = 0
mkdir("./21946", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22521
./strace-static-x86_64: Process 22521 attached
[pid 22521] set_robust_list(0x55557a32b660, 24) = 0
[pid 22521] chdir("./21946")            = 0
[pid 22521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22521] setpgid(0, 0)               = 0
[pid 22521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22521] write(3, "1000", 4)         = 4
[pid 22521] close(3)                    = 0
[pid 22521] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22521] write(1, "executing program\n", 18executing program
) = 18
[pid 22521] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22521] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22521] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22521] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22521] exit_group(0)               = ?
[pid 22521] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22521, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21946", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21946", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21946/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21946/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21946/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21946")                        = 0
mkdir("./21947", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22522
./strace-static-x86_64: Process 22522 attached
[pid 22522] set_robust_list(0x55557a32b660, 24) = 0
[pid 22522] chdir("./21947")            = 0
[pid 22522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22522] setpgid(0, 0)               = 0
[pid 22522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22522] write(3, "1000", 4)         = 4
[pid 22522] close(3)                    = 0
[pid 22522] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22522] write(1, "executing program\n", 18executing program
) = 18
[pid 22522] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22522] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22522] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22522] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22522] exit_group(0)               = ?
[pid 22522] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22522, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21947", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21947", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21947/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21947/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21947/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21947")                        = 0
mkdir("./21948", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22523
./strace-static-x86_64: Process 22523 attached
[pid 22523] set_robust_list(0x55557a32b660, 24) = 0
[pid 22523] chdir("./21948")            = 0
[pid 22523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22523] setpgid(0, 0)               = 0
[pid 22523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22523] write(3, "1000", 4)         = 4
[pid 22523] close(3)                    = 0
[pid 22523] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22523] write(1, "executing program\n", 18executing program
) = 18
[pid 22523] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22523] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22523] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22523] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22523] exit_group(0)               = ?
[pid 22523] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22523, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21948", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21948", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21948/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21948/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21948/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21948")                        = 0
mkdir("./21949", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22524
./strace-static-x86_64: Process 22524 attached
[pid 22524] set_robust_list(0x55557a32b660, 24) = 0
[pid 22524] chdir("./21949")            = 0
[pid 22524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22524] setpgid(0, 0)               = 0
[pid 22524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22524] write(3, "1000", 4)         = 4
[pid 22524] close(3)                    = 0
[pid 22524] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22524] write(1, "executing program\n", 18executing program
) = 18
[pid 22524] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22524] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22524] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22524] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22524] exit_group(0)               = ?
[pid 22524] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22524, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21949", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21949", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21949/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21949/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21949/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21949")                        = 0
mkdir("./21950", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22525
./strace-static-x86_64: Process 22525 attached
[pid 22525] set_robust_list(0x55557a32b660, 24) = 0
[pid 22525] chdir("./21950")            = 0
[pid 22525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22525] setpgid(0, 0)               = 0
[pid 22525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22525] write(3, "1000", 4)         = 4
[pid 22525] close(3)                    = 0
[pid 22525] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22525] write(1, "executing program\n", 18executing program
) = 18
[pid 22525] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22525] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22525] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22525] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22525] exit_group(0)               = ?
[pid 22525] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22525, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21950", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21950", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21950/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21950/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21950/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21950")                        = 0
mkdir("./21951", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22526
./strace-static-x86_64: Process 22526 attached
[pid 22526] set_robust_list(0x55557a32b660, 24) = 0
[pid 22526] chdir("./21951")            = 0
[pid 22526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22526] setpgid(0, 0)               = 0
[pid 22526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22526] write(3, "1000", 4)         = 4
[pid 22526] close(3)                    = 0
[pid 22526] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22526] write(1, "executing program\n", 18executing program
) = 18
[pid 22526] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22526] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22526] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22526] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22526] exit_group(0)               = ?
[pid 22526] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22526, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21951", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21951", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21951/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21951/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21951/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21951")                        = 0
mkdir("./21952", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22527
./strace-static-x86_64: Process 22527 attached
[pid 22527] set_robust_list(0x55557a32b660, 24) = 0
[pid 22527] chdir("./21952")            = 0
[pid 22527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22527] setpgid(0, 0)               = 0
[pid 22527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22527] write(3, "1000", 4)         = 4
[pid 22527] close(3)                    = 0
[pid 22527] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22527] write(1, "executing program\n", 18executing program
) = 18
[pid 22527] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22527] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22527] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22527] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22527] exit_group(0)               = ?
[pid 22527] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22527, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21952", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21952", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21952/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21952/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21952/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21952")                        = 0
mkdir("./21953", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22528 attached
, child_tidptr=0x55557a32b650) = 22528
[pid 22528] set_robust_list(0x55557a32b660, 24) = 0
[pid 22528] chdir("./21953")            = 0
[pid 22528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22528] setpgid(0, 0)               = 0
[pid 22528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22528] write(3, "1000", 4)         = 4
[pid 22528] close(3)                    = 0
[pid 22528] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22528] write(1, "executing program\n", 18executing program
) = 18
[pid 22528] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22528] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22528] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22528] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22528] exit_group(0)               = ?
[pid 22528] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22528, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21953", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21953", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21953/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21953/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21953/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21953")                        = 0
mkdir("./21954", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22529
./strace-static-x86_64: Process 22529 attached
[pid 22529] set_robust_list(0x55557a32b660, 24) = 0
[pid 22529] chdir("./21954")            = 0
[pid 22529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22529] setpgid(0, 0)               = 0
[pid 22529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22529] write(3, "1000", 4)         = 4
[pid 22529] close(3)                    = 0
[pid 22529] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22529] write(1, "executing program\n", 18executing program
) = 18
[pid 22529] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22529] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22529] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22529] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22529] exit_group(0)               = ?
[pid 22529] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22529, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21954", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21954", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21954/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21954/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21954/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21954")                        = 0
mkdir("./21955", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22530
./strace-static-x86_64: Process 22530 attached
[pid 22530] set_robust_list(0x55557a32b660, 24) = 0
[pid 22530] chdir("./21955")            = 0
[pid 22530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22530] setpgid(0, 0)               = 0
[pid 22530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22530] write(3, "1000", 4)         = 4
[pid 22530] close(3)                    = 0
[pid 22530] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22530] write(1, "executing program\n", 18executing program
) = 18
[pid 22530] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22530] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22530] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22530] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22530] exit_group(0)               = ?
[pid 22530] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22530, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21955", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21955", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21955/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21955/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21955/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21955")                        = 0
mkdir("./21956", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22531 attached
, child_tidptr=0x55557a32b650) = 22531
[pid 22531] set_robust_list(0x55557a32b660, 24) = 0
[pid 22531] chdir("./21956")            = 0
[pid 22531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22531] setpgid(0, 0)               = 0
[pid 22531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22531] write(3, "1000", 4)         = 4
[pid 22531] close(3)                    = 0
[pid 22531] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22531] write(1, "executing program\n", 18executing program
) = 18
[pid 22531] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22531] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22531] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22531] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22531] exit_group(0)               = ?
[pid 22531] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22531, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21956", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21956", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21956/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21956/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21956/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21956")                        = 0
mkdir("./21957", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22532 attached
, child_tidptr=0x55557a32b650) = 22532
[pid 22532] set_robust_list(0x55557a32b660, 24) = 0
[pid 22532] chdir("./21957")            = 0
[pid 22532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22532] setpgid(0, 0)               = 0
[pid 22532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22532] write(3, "1000", 4)         = 4
[pid 22532] close(3)                    = 0
[pid 22532] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22532] write(1, "executing program\n", 18executing program
) = 18
[pid 22532] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22532] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22532] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22532] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22532] exit_group(0)               = ?
[pid 22532] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22532, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21957", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21957", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21957/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21957/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21957/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21957")                        = 0
mkdir("./21958", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22533 attached
, child_tidptr=0x55557a32b650) = 22533
[pid 22533] set_robust_list(0x55557a32b660, 24) = 0
[pid 22533] chdir("./21958")            = 0
[pid 22533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22533] setpgid(0, 0)               = 0
[pid 22533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22533] write(3, "1000", 4)         = 4
[pid 22533] close(3)                    = 0
[pid 22533] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22533] write(1, "executing program\n", 18executing program
) = 18
[pid 22533] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22533] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22533] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22533] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22533] exit_group(0)               = ?
[pid 22533] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22533, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21958", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21958", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21958/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21958/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21958/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21958")                        = 0
mkdir("./21959", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22534 attached
, child_tidptr=0x55557a32b650) = 22534
[pid 22534] set_robust_list(0x55557a32b660, 24) = 0
[pid 22534] chdir("./21959")            = 0
[pid 22534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22534] setpgid(0, 0)               = 0
[pid 22534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22534] write(3, "1000", 4)         = 4
[pid 22534] close(3)                    = 0
[pid 22534] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22534] write(1, "executing program\n", 18executing program
) = 18
[pid 22534] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22534] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22534] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22534] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22534] exit_group(0)               = ?
[pid 22534] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22534, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21959", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21959", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21959/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21959/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21959/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21959")                        = 0
mkdir("./21960", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22535 attached
, child_tidptr=0x55557a32b650) = 22535
[pid 22535] set_robust_list(0x55557a32b660, 24) = 0
[pid 22535] chdir("./21960")            = 0
[pid 22535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22535] setpgid(0, 0)               = 0
[pid 22535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22535] write(3, "1000", 4)         = 4
[pid 22535] close(3)                    = 0
[pid 22535] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22535] write(1, "executing program\n", 18executing program
) = 18
[pid 22535] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22535] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22535] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22535] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22535] exit_group(0)               = ?
[pid 22535] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22535, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21960", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21960", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21960/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21960/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21960/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21960")                        = 0
mkdir("./21961", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22536
./strace-static-x86_64: Process 22536 attached
[pid 22536] set_robust_list(0x55557a32b660, 24) = 0
[pid 22536] chdir("./21961")            = 0
[pid 22536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22536] setpgid(0, 0)               = 0
[pid 22536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22536] write(3, "1000", 4)         = 4
[pid 22536] close(3)                    = 0
[pid 22536] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22536] write(1, "executing program\n", 18executing program
) = 18
[pid 22536] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22536] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22536] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22536] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22536] exit_group(0)               = ?
[pid 22536] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22536, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21961", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21961", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21961/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21961/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21961/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21961")                        = 0
mkdir("./21962", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22537
./strace-static-x86_64: Process 22537 attached
[pid 22537] set_robust_list(0x55557a32b660, 24) = 0
[pid 22537] chdir("./21962")            = 0
[pid 22537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22537] setpgid(0, 0)               = 0
[pid 22537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22537] write(3, "1000", 4)         = 4
[pid 22537] close(3)                    = 0
[pid 22537] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22537] write(1, "executing program\n", 18executing program
) = 18
[pid 22537] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22537] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22537] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22537] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22537] exit_group(0)               = ?
[pid 22537] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22537, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21962", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21962", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21962/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21962/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21962/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21962")                        = 0
mkdir("./21963", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22538
./strace-static-x86_64: Process 22538 attached
[pid 22538] set_robust_list(0x55557a32b660, 24) = 0
[pid 22538] chdir("./21963")            = 0
[pid 22538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22538] setpgid(0, 0)               = 0
[pid 22538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22538] write(3, "1000", 4)         = 4
[pid 22538] close(3)                    = 0
[pid 22538] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22538] write(1, "executing program\n", 18executing program
) = 18
[pid 22538] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22538] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22538] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22538] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22538] exit_group(0)               = ?
[pid 22538] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22538, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21963", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21963", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21963/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21963/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21963/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21963")                        = 0
mkdir("./21964", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22539
./strace-static-x86_64: Process 22539 attached
[pid 22539] set_robust_list(0x55557a32b660, 24) = 0
[pid 22539] chdir("./21964")            = 0
[pid 22539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22539] setpgid(0, 0)               = 0
[pid 22539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22539] write(3, "1000", 4)         = 4
[pid 22539] close(3)                    = 0
[pid 22539] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22539] write(1, "executing program\n", 18executing program
) = 18
[pid 22539] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22539] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22539] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22539] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22539] exit_group(0)               = ?
[pid 22539] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22539, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21964", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21964", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21964/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21964/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21964/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21964")                        = 0
mkdir("./21965", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22540
./strace-static-x86_64: Process 22540 attached
[pid 22540] set_robust_list(0x55557a32b660, 24) = 0
[pid 22540] chdir("./21965")            = 0
[pid 22540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22540] setpgid(0, 0)               = 0
[pid 22540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22540] write(3, "1000", 4)         = 4
[pid 22540] close(3)                    = 0
[pid 22540] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22540] write(1, "executing program\n", 18executing program
) = 18
[pid 22540] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22540] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22540] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22540] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22540] exit_group(0)               = ?
[pid 22540] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22540, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21965", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21965", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21965/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21965/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21965/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21965")                        = 0
mkdir("./21966", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22541
./strace-static-x86_64: Process 22541 attached
[pid 22541] set_robust_list(0x55557a32b660, 24) = 0
[pid 22541] chdir("./21966")            = 0
[pid 22541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22541] setpgid(0, 0)               = 0
[pid 22541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22541] write(3, "1000", 4)         = 4
[pid 22541] close(3)                    = 0
[pid 22541] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22541] write(1, "executing program\n", 18executing program
) = 18
[pid 22541] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22541] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22541] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22541] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22541] exit_group(0)               = ?
[pid 22541] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22541, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21966", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21966", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21966/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21966/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21966/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21966")                        = 0
mkdir("./21967", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22542
./strace-static-x86_64: Process 22542 attached
[pid 22542] set_robust_list(0x55557a32b660, 24) = 0
[pid 22542] chdir("./21967")            = 0
[pid 22542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22542] setpgid(0, 0)               = 0
[pid 22542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22542] write(3, "1000", 4)         = 4
[pid 22542] close(3)                    = 0
[pid 22542] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22542] write(1, "executing program\n", 18executing program
) = 18
[pid 22542] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22542] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22542] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22542] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22542] exit_group(0)               = ?
[pid 22542] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22542, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21967", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21967", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21967/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21967/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21967/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21967")                        = 0
mkdir("./21968", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22543 attached
, child_tidptr=0x55557a32b650) = 22543
[pid 22543] set_robust_list(0x55557a32b660, 24) = 0
[pid 22543] chdir("./21968")            = 0
[pid 22543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22543] setpgid(0, 0)               = 0
[pid 22543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22543] write(3, "1000", 4)         = 4
[pid 22543] close(3)                    = 0
[pid 22543] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22543] write(1, "executing program\n", 18executing program
) = 18
[pid 22543] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22543] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22543] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22543] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22543] exit_group(0)               = ?
[pid 22543] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22543, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21968", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21968", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21968/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21968/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21968/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21968")                        = 0
mkdir("./21969", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22544
./strace-static-x86_64: Process 22544 attached
[pid 22544] set_robust_list(0x55557a32b660, 24) = 0
[pid 22544] chdir("./21969")            = 0
[pid 22544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22544] setpgid(0, 0)               = 0
[pid 22544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22544] write(3, "1000", 4)         = 4
[pid 22544] close(3)                    = 0
[pid 22544] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22544] write(1, "executing program\n", 18executing program
) = 18
[pid 22544] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22544] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22544] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22544] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22544] exit_group(0)               = ?
[pid 22544] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22544, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21969", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21969", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21969/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21969/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21969/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21969")                        = 0
mkdir("./21970", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22545
./strace-static-x86_64: Process 22545 attached
[pid 22545] set_robust_list(0x55557a32b660, 24) = 0
[pid 22545] chdir("./21970")            = 0
[pid 22545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22545] setpgid(0, 0)               = 0
[pid 22545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22545] write(3, "1000", 4)         = 4
[pid 22545] close(3)                    = 0
[pid 22545] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22545] write(1, "executing program\n", 18executing program
) = 18
[pid 22545] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22545] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22545] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22545] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22545] exit_group(0)               = ?
[pid 22545] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22545, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21970", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21970", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21970/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21970/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21970/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21970")                        = 0
mkdir("./21971", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22546
./strace-static-x86_64: Process 22546 attached
[pid 22546] set_robust_list(0x55557a32b660, 24) = 0
[pid 22546] chdir("./21971")            = 0
[pid 22546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22546] setpgid(0, 0)               = 0
[pid 22546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22546] write(3, "1000", 4)         = 4
[pid 22546] close(3)                    = 0
[pid 22546] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22546] write(1, "executing program\n", 18executing program
) = 18
[pid 22546] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22546] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22546] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22546] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22546] exit_group(0)               = ?
[pid 22546] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22546, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21971", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21971", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21971/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21971/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21971/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21971")                        = 0
mkdir("./21972", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22547
./strace-static-x86_64: Process 22547 attached
[pid 22547] set_robust_list(0x55557a32b660, 24) = 0
[pid 22547] chdir("./21972")            = 0
[pid 22547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22547] setpgid(0, 0)               = 0
[pid 22547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22547] write(3, "1000", 4)         = 4
[pid 22547] close(3)                    = 0
[pid 22547] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22547] write(1, "executing program\n", 18executing program
) = 18
[pid 22547] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22547] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22547] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22547] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22547] exit_group(0)               = ?
[pid 22547] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22547, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21972", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21972", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21972/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21972/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21972/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21972")                        = 0
mkdir("./21973", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22548
./strace-static-x86_64: Process 22548 attached
[pid 22548] set_robust_list(0x55557a32b660, 24) = 0
[pid 22548] chdir("./21973")            = 0
[pid 22548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22548] setpgid(0, 0)               = 0
[pid 22548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22548] write(3, "1000", 4)         = 4
[pid 22548] close(3)                    = 0
[pid 22548] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22548] write(1, "executing program\n", 18) = 18
[pid 22548] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22548] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22548] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22548] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22548] exit_group(0)               = ?
[pid 22548] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22548, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21973", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21973", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21973/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21973/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21973/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21973")                        = 0
mkdir("./21974", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22549
./strace-static-x86_64: Process 22549 attached
[pid 22549] set_robust_list(0x55557a32b660, 24) = 0
[pid 22549] chdir("./21974")            = 0
[pid 22549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22549] setpgid(0, 0)               = 0
[pid 22549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22549] write(3, "1000", 4)         = 4
[pid 22549] close(3)                    = 0
[pid 22549] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22549] write(1, "executing program\n", 18executing program
) = 18
[pid 22549] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22549] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22549] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22549] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22549] exit_group(0)               = ?
[pid 22549] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22549, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21974", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21974", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21974/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21974/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21974/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21974")                        = 0
mkdir("./21975", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22550
./strace-static-x86_64: Process 22550 attached
[pid 22550] set_robust_list(0x55557a32b660, 24) = 0
[pid 22550] chdir("./21975")            = 0
[pid 22550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22550] setpgid(0, 0)               = 0
[pid 22550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22550] write(3, "1000", 4)         = 4
[pid 22550] close(3)                    = 0
[pid 22550] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22550] write(1, "executing program\n", 18executing program
) = 18
[pid 22550] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22550] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22550] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22550] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22550] exit_group(0)               = ?
[pid 22550] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22550, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21975", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21975", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21975/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21975/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21975/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21975")                        = 0
mkdir("./21976", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22551 attached
, child_tidptr=0x55557a32b650) = 22551
[pid 22551] set_robust_list(0x55557a32b660, 24) = 0
[pid 22551] chdir("./21976")            = 0
[pid 22551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22551] setpgid(0, 0)               = 0
[pid 22551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22551] write(3, "1000", 4)         = 4
[pid 22551] close(3)                    = 0
[pid 22551] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22551] write(1, "executing program\n", 18) = 18
[pid 22551] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22551] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22551] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22551] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22551] exit_group(0)               = ?
[pid 22551] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22551, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21976", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21976", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21976/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21976/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21976/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21976")                        = 0
mkdir("./21977", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22552
./strace-static-x86_64: Process 22552 attached
[pid 22552] set_robust_list(0x55557a32b660, 24) = 0
[pid 22552] chdir("./21977")            = 0
[pid 22552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22552] setpgid(0, 0)               = 0
[pid 22552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22552] write(3, "1000", 4)         = 4
[pid 22552] close(3)                    = 0
[pid 22552] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22552] write(1, "executing program\n", 18executing program
) = 18
[pid 22552] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22552] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22552] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22552] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22552] exit_group(0)               = ?
[pid 22552] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22552, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21977", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21977", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21977/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21977/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21977/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21977")                        = 0
mkdir("./21978", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22553 attached
, child_tidptr=0x55557a32b650) = 22553
[pid 22553] set_robust_list(0x55557a32b660, 24) = 0
[pid 22553] chdir("./21978")            = 0
[pid 22553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22553] setpgid(0, 0)               = 0
[pid 22553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22553] write(3, "1000", 4)         = 4
[pid 22553] close(3)                    = 0
[pid 22553] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22553] write(1, "executing program\n", 18executing program
) = 18
[pid 22553] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22553] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22553] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22553] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22553] exit_group(0)               = ?
[pid 22553] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22553, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21978", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21978", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21978/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21978/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21978/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21978")                        = 0
mkdir("./21979", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22554
./strace-static-x86_64: Process 22554 attached
[pid 22554] set_robust_list(0x55557a32b660, 24) = 0
[pid 22554] chdir("./21979")            = 0
[pid 22554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22554] setpgid(0, 0)               = 0
[pid 22554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22554] write(3, "1000", 4)         = 4
[pid 22554] close(3)                    = 0
[pid 22554] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22554] write(1, "executing program\n", 18executing program
) = 18
[pid 22554] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22554] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22554] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22554] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22554] exit_group(0)               = ?
[pid 22554] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22554, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21979", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21979", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21979/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21979/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21979/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21979")                        = 0
mkdir("./21980", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22555 attached
, child_tidptr=0x55557a32b650) = 22555
[pid 22555] set_robust_list(0x55557a32b660, 24) = 0
[pid 22555] chdir("./21980")            = 0
[pid 22555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22555] setpgid(0, 0)               = 0
[pid 22555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22555] write(3, "1000", 4)         = 4
[pid 22555] close(3)                    = 0
[pid 22555] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22555] write(1, "executing program\n", 18executing program
) = 18
[pid 22555] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22555] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22555] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22555] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22555] exit_group(0)               = ?
[pid 22555] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22555, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21980", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21980", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21980/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21980/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21980/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21980")                        = 0
mkdir("./21981", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22556
./strace-static-x86_64: Process 22556 attached
[pid 22556] set_robust_list(0x55557a32b660, 24) = 0
[pid 22556] chdir("./21981")            = 0
[pid 22556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22556] setpgid(0, 0)               = 0
[pid 22556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22556] write(3, "1000", 4)         = 4
[pid 22556] close(3)                    = 0
[pid 22556] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22556] write(1, "executing program\n", 18executing program
) = 18
[pid 22556] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22556] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22556] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22556] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22556] exit_group(0)               = ?
[pid 22556] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22556, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21981", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21981", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21981/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21981/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21981/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21981")                        = 0
mkdir("./21982", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22557
./strace-static-x86_64: Process 22557 attached
[pid 22557] set_robust_list(0x55557a32b660, 24) = 0
[pid 22557] chdir("./21982")            = 0
[pid 22557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22557] setpgid(0, 0)               = 0
[pid 22557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22557] write(3, "1000", 4)         = 4
[pid 22557] close(3)                    = 0
[pid 22557] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22557] write(1, "executing program\n", 18executing program
) = 18
[pid 22557] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22557] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22557] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22557] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22557] exit_group(0)               = ?
[pid 22557] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22557, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21982", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21982", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21982/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21982/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21982/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21982")                        = 0
mkdir("./21983", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22558 attached
 <unfinished ...>
[pid 22558] set_robust_list(0x55557a32b660, 24) = 0
[pid 22558] chdir("./21983")            = 0
[pid 22558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22558] setpgid(0, 0)               = 0
[pid 22558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22558
[pid 22558] <... openat resumed>)       = 3
[pid 22558] write(3, "1000", 4)         = 4
[pid 22558] close(3)                    = 0
[pid 22558] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22558] write(1, "executing program\n", 18) = 18
[pid 22558] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22558] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22558] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22558] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22558] exit_group(0)               = ?
[pid 22558] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22558, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21983", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21983", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21983/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21983/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21983/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21983")                        = 0
mkdir("./21984", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22559
./strace-static-x86_64: Process 22559 attached
[pid 22559] set_robust_list(0x55557a32b660, 24) = 0
[pid 22559] chdir("./21984")            = 0
[pid 22559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22559] setpgid(0, 0)               = 0
[pid 22559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22559] write(3, "1000", 4)         = 4
[pid 22559] close(3)                    = 0
[pid 22559] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22559] write(1, "executing program\n", 18) = 18
[pid 22559] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22559] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22559] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22559] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22559] exit_group(0)               = ?
[pid 22559] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22559, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21984", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21984", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21984/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21984/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21984/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21984")                        = 0
mkdir("./21985", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22560
./strace-static-x86_64: Process 22560 attached
[pid 22560] set_robust_list(0x55557a32b660, 24) = 0
[pid 22560] chdir("./21985")            = 0
[pid 22560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22560] setpgid(0, 0)               = 0
[pid 22560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22560] write(3, "1000", 4)         = 4
[pid 22560] close(3)                    = 0
[pid 22560] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22560] write(1, "executing program\n", 18executing program
) = 18
[pid 22560] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22560] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22560] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22560] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22560] exit_group(0)               = ?
[pid 22560] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22560, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21985", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21985", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21985/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21985/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21985/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21985")                        = 0
mkdir("./21986", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22561
./strace-static-x86_64: Process 22561 attached
[pid 22561] set_robust_list(0x55557a32b660, 24) = 0
[pid 22561] chdir("./21986")            = 0
[pid 22561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22561] setpgid(0, 0)               = 0
[pid 22561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22561] write(3, "1000", 4)         = 4
[pid 22561] close(3)                    = 0
[pid 22561] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22561] write(1, "executing program\n", 18) = 18
[pid 22561] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22561] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22561] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22561] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22561] exit_group(0)               = ?
[pid 22561] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22561, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21986", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21986", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21986/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21986/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21986/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21986")                        = 0
mkdir("./21987", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22562 attached
, child_tidptr=0x55557a32b650) = 22562
[pid 22562] set_robust_list(0x55557a32b660, 24) = 0
[pid 22562] chdir("./21987")            = 0
[pid 22562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22562] setpgid(0, 0)               = 0
[pid 22562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22562] write(3, "1000", 4)         = 4
[pid 22562] close(3)                    = 0
[pid 22562] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22562] write(1, "executing program\n", 18executing program
) = 18
[pid 22562] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22562] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22562] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22562] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22562] exit_group(0)               = ?
[pid 22562] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22562, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21987", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21987", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21987/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21987/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21987/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21987")                        = 0
mkdir("./21988", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22563
./strace-static-x86_64: Process 22563 attached
[pid 22563] set_robust_list(0x55557a32b660, 24) = 0
[pid 22563] chdir("./21988")            = 0
[pid 22563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22563] setpgid(0, 0)               = 0
[pid 22563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22563] write(3, "1000", 4)         = 4
[pid 22563] close(3)                    = 0
[pid 22563] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22563] write(1, "executing program\n", 18executing program
) = 18
[pid 22563] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22563] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22563] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22563] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22563] exit_group(0)               = ?
[pid 22563] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22563, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21988", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21988", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21988/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21988/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21988/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21988")                        = 0
mkdir("./21989", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22564
./strace-static-x86_64: Process 22564 attached
[pid 22564] set_robust_list(0x55557a32b660, 24) = 0
[pid 22564] chdir("./21989")            = 0
[pid 22564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22564] setpgid(0, 0)               = 0
[pid 22564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22564] write(3, "1000", 4)         = 4
[pid 22564] close(3)                    = 0
[pid 22564] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22564] write(1, "executing program\n", 18executing program
) = 18
[pid 22564] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22564] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22564] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22564] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22564] exit_group(0)               = ?
[pid 22564] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22564, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21989", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21989", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21989/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21989/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21989/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21989")                        = 0
mkdir("./21990", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22565
./strace-static-x86_64: Process 22565 attached
[pid 22565] set_robust_list(0x55557a32b660, 24) = 0
[pid 22565] chdir("./21990")            = 0
[pid 22565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22565] setpgid(0, 0)               = 0
[pid 22565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22565] write(3, "1000", 4)         = 4
[pid 22565] close(3)                    = 0
[pid 22565] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22565] write(1, "executing program\n", 18executing program
) = 18
[pid 22565] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22565] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22565] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22565] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22565] exit_group(0)               = ?
[pid 22565] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22565, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21990", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21990", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21990/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21990/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21990/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21990")                        = 0
mkdir("./21991", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22566
./strace-static-x86_64: Process 22566 attached
[pid 22566] set_robust_list(0x55557a32b660, 24) = 0
[pid 22566] chdir("./21991")            = 0
[pid 22566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22566] setpgid(0, 0)               = 0
[pid 22566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22566] write(3, "1000", 4)         = 4
[pid 22566] close(3)                    = 0
[pid 22566] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22566] write(1, "executing program\n", 18executing program
) = 18
[pid 22566] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22566] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22566] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22566] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22566] exit_group(0)               = ?
[pid 22566] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22566, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21991", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21991", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21991/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21991/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21991/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21991")                        = 0
mkdir("./21992", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22567
./strace-static-x86_64: Process 22567 attached
[pid 22567] set_robust_list(0x55557a32b660, 24) = 0
[pid 22567] chdir("./21992")            = 0
[pid 22567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22567] setpgid(0, 0)               = 0
[pid 22567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22567] write(3, "1000", 4)         = 4
[pid 22567] close(3)                    = 0
[pid 22567] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22567] write(1, "executing program\n", 18) = 18
[pid 22567] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22567] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22567] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22567] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22567] exit_group(0)               = ?
[pid 22567] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22567, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21992", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21992", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21992/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21992/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21992/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21992")                        = 0
mkdir("./21993", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22568
./strace-static-x86_64: Process 22568 attached
[pid 22568] set_robust_list(0x55557a32b660, 24) = 0
[pid 22568] chdir("./21993")            = 0
[pid 22568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22568] setpgid(0, 0)               = 0
[pid 22568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22568] write(3, "1000", 4)         = 4
[pid 22568] close(3)                    = 0
[pid 22568] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22568] write(1, "executing program\n", 18executing program
) = 18
[pid 22568] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22568] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22568] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22568] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22568] exit_group(0)               = ?
[pid 22568] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21993", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21993", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21993/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21993/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21993/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21993")                        = 0
mkdir("./21994", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22569
./strace-static-x86_64: Process 22569 attached
[pid 22569] set_robust_list(0x55557a32b660, 24) = 0
[pid 22569] chdir("./21994")            = 0
[pid 22569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22569] setpgid(0, 0)               = 0
[pid 22569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22569] write(3, "1000", 4)         = 4
[pid 22569] close(3)                    = 0
[pid 22569] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22569] write(1, "executing program\n", 18executing program
) = 18
[pid 22569] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22569] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22569] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22569] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22569] exit_group(0)               = ?
[pid 22569] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22569, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21994", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21994", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21994/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21994/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21994/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21994")                        = 0
mkdir("./21995", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22570 attached
, child_tidptr=0x55557a32b650) = 22570
[pid 22570] set_robust_list(0x55557a32b660, 24) = 0
[pid 22570] chdir("./21995")            = 0
[pid 22570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22570] setpgid(0, 0)               = 0
[pid 22570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22570] write(3, "1000", 4)         = 4
[pid 22570] close(3)                    = 0
[pid 22570] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22570] write(1, "executing program\n", 18executing program
) = 18
[pid 22570] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22570] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22570] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22570] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22570] exit_group(0)               = ?
[pid 22570] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22570, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21995", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21995", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21995/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21995/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21995/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21995")                        = 0
mkdir("./21996", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22571
./strace-static-x86_64: Process 22571 attached
[pid 22571] set_robust_list(0x55557a32b660, 24) = 0
[pid 22571] chdir("./21996")            = 0
[pid 22571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22571] setpgid(0, 0)               = 0
[pid 22571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22571] write(3, "1000", 4)         = 4
[pid 22571] close(3)                    = 0
[pid 22571] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22571] write(1, "executing program\n", 18executing program
) = 18
[pid 22571] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22571] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22571] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22571] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22571] exit_group(0)               = ?
[pid 22571] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22571, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21996", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21996", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21996/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21996/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21996/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21996")                        = 0
mkdir("./21997", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22572 attached
, child_tidptr=0x55557a32b650) = 22572
[pid 22572] set_robust_list(0x55557a32b660, 24) = 0
[pid 22572] chdir("./21997")            = 0
[pid 22572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22572] setpgid(0, 0)               = 0
[pid 22572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22572] write(3, "1000", 4)         = 4
[pid 22572] close(3)                    = 0
[pid 22572] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22572] write(1, "executing program\n", 18executing program
) = 18
[pid 22572] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22572] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22572] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22572] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22572] exit_group(0)               = ?
[pid 22572] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22572, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21997", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21997", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21997/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21997/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21997/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21997")                        = 0
mkdir("./21998", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22573 attached
, child_tidptr=0x55557a32b650) = 22573
[pid 22573] set_robust_list(0x55557a32b660, 24) = 0
[pid 22573] chdir("./21998")            = 0
[pid 22573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22573] setpgid(0, 0)               = 0
[pid 22573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22573] write(3, "1000", 4)         = 4
[pid 22573] close(3)                    = 0
[pid 22573] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22573] write(1, "executing program\n", 18executing program
) = 18
[pid 22573] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22573] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22573] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22573] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22573] exit_group(0)               = ?
[pid 22573] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22573, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21998", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21998", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21998/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21998/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21998/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21998")                        = 0
mkdir("./21999", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22574 attached
 <unfinished ...>
[pid 22574] set_robust_list(0x55557a32b660, 24) = 0
[pid 22574] chdir("./21999" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22574
[pid 22574] <... chdir resumed>)        = 0
[pid 22574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22574] setpgid(0, 0)               = 0
[pid 22574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22574] write(3, "1000", 4)         = 4
[pid 22574] close(3)                    = 0
[pid 22574] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22574] write(1, "executing program\n", 18) = 18
[pid 22574] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22574] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22574] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22574] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22574] exit_group(0)               = ?
[pid 22574] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22574, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21999", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21999", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./21999/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21999/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21999/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21999")                        = 0
mkdir("./22000", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22575
./strace-static-x86_64: Process 22575 attached
[pid 22575] set_robust_list(0x55557a32b660, 24) = 0
[pid 22575] chdir("./22000")            = 0
[pid 22575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22575] setpgid(0, 0)               = 0
[pid 22575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22575] write(3, "1000", 4)         = 4
[pid 22575] close(3)                    = 0
[pid 22575] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22575] write(1, "executing program\n", 18executing program
) = 18
[pid 22575] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22575] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22575] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22575] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22575] exit_group(0)               = ?
[pid 22575] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22575, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22000", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22000", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22000/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22000/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22000/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22000")                        = 0
mkdir("./22001", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22576
./strace-static-x86_64: Process 22576 attached
[pid 22576] set_robust_list(0x55557a32b660, 24) = 0
[pid 22576] chdir("./22001")            = 0
[pid 22576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22576] setpgid(0, 0)               = 0
[pid 22576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22576] write(3, "1000", 4)         = 4
[pid 22576] close(3)                    = 0
[pid 22576] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22576] write(1, "executing program\n", 18executing program
) = 18
[pid 22576] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22576] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22576] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22576] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22576] exit_group(0)               = ?
[pid 22576] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22576, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22001", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22001", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22001/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22001/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22001/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22001")                        = 0
mkdir("./22002", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22577
./strace-static-x86_64: Process 22577 attached
[pid 22577] set_robust_list(0x55557a32b660, 24) = 0
[pid 22577] chdir("./22002")            = 0
[pid 22577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22577] setpgid(0, 0)               = 0
[pid 22577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22577] write(3, "1000", 4)         = 4
[pid 22577] close(3)                    = 0
[pid 22577] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22577] write(1, "executing program\n", 18executing program
) = 18
[pid 22577] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22577] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22577] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22577] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22577] exit_group(0)               = ?
[pid 22577] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22577, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22002", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22002", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22002/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22002/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22002/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22002")                        = 0
mkdir("./22003", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22578
./strace-static-x86_64: Process 22578 attached
[pid 22578] set_robust_list(0x55557a32b660, 24) = 0
[pid 22578] chdir("./22003")            = 0
[pid 22578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22578] setpgid(0, 0)               = 0
[pid 22578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22578] write(3, "1000", 4)         = 4
[pid 22578] close(3)                    = 0
[pid 22578] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22578] write(1, "executing program\n", 18executing program
) = 18
[pid 22578] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22578] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22578] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22578] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22578] exit_group(0)               = ?
[pid 22578] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22578, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22003", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22003", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22003/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22003/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22003/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22003")                        = 0
mkdir("./22004", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22579 attached
 <unfinished ...>
[pid 22579] set_robust_list(0x55557a32b660, 24) = 0
[pid 22579] chdir("./22004" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22579
[pid 22579] <... chdir resumed>)        = 0
[pid 22579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22579] setpgid(0, 0)               = 0
[pid 22579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22579] write(3, "1000", 4)         = 4
[pid 22579] close(3)                    = 0
[pid 22579] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22579] write(1, "executing program\n", 18executing program
) = 18
[pid 22579] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22579] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22579] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22579] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22579] exit_group(0)               = ?
[pid 22579] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22579, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22004", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22004", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22004/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22004/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22004/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22004")                        = 0
mkdir("./22005", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22580
./strace-static-x86_64: Process 22580 attached
[pid 22580] set_robust_list(0x55557a32b660, 24) = 0
[pid 22580] chdir("./22005")            = 0
[pid 22580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22580] setpgid(0, 0)               = 0
[pid 22580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22580] write(3, "1000", 4)         = 4
[pid 22580] close(3)                    = 0
[pid 22580] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22580] write(1, "executing program\n", 18executing program
) = 18
[pid 22580] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22580] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22580] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22580] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22580] exit_group(0)               = ?
[pid 22580] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22580, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22005", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22005", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22005/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22005/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22005/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22005")                        = 0
mkdir("./22006", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22581 attached
, child_tidptr=0x55557a32b650) = 22581
[pid 22581] set_robust_list(0x55557a32b660, 24) = 0
[pid 22581] chdir("./22006")            = 0
[pid 22581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22581] setpgid(0, 0)               = 0
[pid 22581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22581] write(3, "1000", 4)         = 4
[pid 22581] close(3)                    = 0
[pid 22581] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22581] write(1, "executing program\n", 18executing program
) = 18
[pid 22581] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22581] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22581] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22581] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22581] exit_group(0)               = ?
[pid 22581] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22581, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22006", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22006", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22006/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22006/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22006/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22006")                        = 0
mkdir("./22007", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22582 attached
 <unfinished ...>
[pid 22582] set_robust_list(0x55557a32b660, 24) = 0
[pid 22582] chdir("./22007")            = 0
[pid 22582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22582] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22582
[pid 22582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22582] write(3, "1000", 4)         = 4
[pid 22582] close(3)                    = 0
[pid 22582] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22582] write(1, "executing program\n", 18executing program
) = 18
[pid 22582] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22582] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22582] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22582] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22582] exit_group(0)               = ?
[pid 22582] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22582, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22007", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22007", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22007/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22007/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22007/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22007")                        = 0
mkdir("./22008", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22583
./strace-static-x86_64: Process 22583 attached
[pid 22583] set_robust_list(0x55557a32b660, 24) = 0
[pid 22583] chdir("./22008")            = 0
[pid 22583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22583] setpgid(0, 0)               = 0
[pid 22583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22583] write(3, "1000", 4)         = 4
[pid 22583] close(3)                    = 0
[pid 22583] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22583] write(1, "executing program\n", 18executing program
) = 18
[pid 22583] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22583] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22583] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22583] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22583] exit_group(0)               = ?
[pid 22583] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22583, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22008", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22008", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22008/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22008/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22008/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22008")                        = 0
mkdir("./22009", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22584
./strace-static-x86_64: Process 22584 attached
[pid 22584] set_robust_list(0x55557a32b660, 24) = 0
[pid 22584] chdir("./22009")            = 0
[pid 22584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22584] setpgid(0, 0)               = 0
[pid 22584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22584] write(3, "1000", 4)         = 4
[pid 22584] close(3)                    = 0
[pid 22584] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22584] write(1, "executing program\n", 18executing program
) = 18
[pid 22584] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22584] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22584] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22584] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22584] exit_group(0)               = ?
[pid 22584] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22584, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22009", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22009", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22009/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22009/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22009/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22009")                        = 0
mkdir("./22010", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22585
./strace-static-x86_64: Process 22585 attached
[pid 22585] set_robust_list(0x55557a32b660, 24) = 0
[pid 22585] chdir("./22010")            = 0
[pid 22585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22585] setpgid(0, 0)               = 0
[pid 22585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22585] write(3, "1000", 4)         = 4
[pid 22585] close(3)                    = 0
[pid 22585] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22585] write(1, "executing program\n", 18executing program
) = 18
[pid 22585] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22585] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22585] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22585] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22585] exit_group(0)               = ?
[pid 22585] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22585, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22010", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22010", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22010/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22010/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22010/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22010")                        = 0
mkdir("./22011", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22586
./strace-static-x86_64: Process 22586 attached
[pid 22586] set_robust_list(0x55557a32b660, 24) = 0
[pid 22586] chdir("./22011")            = 0
[pid 22586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22586] setpgid(0, 0)               = 0
[pid 22586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22586] write(3, "1000", 4)         = 4
[pid 22586] close(3)                    = 0
[pid 22586] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22586] write(1, "executing program\n", 18executing program
) = 18
[pid 22586] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22586] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22586] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22586] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22586] exit_group(0)               = ?
[pid 22586] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22586, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22011", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22011", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22011/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22011/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22011/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22011")                        = 0
mkdir("./22012", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22588
./strace-static-x86_64: Process 22588 attached
[pid 22588] set_robust_list(0x55557a32b660, 24) = 0
[pid 22588] chdir("./22012")            = 0
[pid 22588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22588] setpgid(0, 0)               = 0
[pid 22588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22588] write(3, "1000", 4)         = 4
[pid 22588] close(3)                    = 0
[pid 22588] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22588] write(1, "executing program\n", 18) = 18
[pid 22588] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22588] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22588] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22588] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22588] exit_group(0)               = ?
[pid 22588] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22588, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22012", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22012", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22012/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22012/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22012/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22012")                        = 0
mkdir("./22013", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22589
./strace-static-x86_64: Process 22589 attached
[pid 22589] set_robust_list(0x55557a32b660, 24) = 0
[pid 22589] chdir("./22013")            = 0
[pid 22589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22589] setpgid(0, 0)               = 0
[pid 22589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22589] write(3, "1000", 4)         = 4
[pid 22589] close(3)                    = 0
[pid 22589] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22589] write(1, "executing program\n", 18executing program
) = 18
[pid 22589] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22589] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22589] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22589] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22589] exit_group(0)               = ?
[pid 22589] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22589, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22013", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22013", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22013/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22013/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22013/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22013")                        = 0
mkdir("./22014", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22590 attached
, child_tidptr=0x55557a32b650) = 22590
[pid 22590] set_robust_list(0x55557a32b660, 24) = 0
[pid 22590] chdir("./22014")            = 0
[pid 22590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22590] setpgid(0, 0)               = 0
[pid 22590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22590] write(3, "1000", 4)         = 4
[pid 22590] close(3)                    = 0
[pid 22590] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22590] write(1, "executing program\n", 18executing program
) = 18
[pid 22590] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22590] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22590] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22590] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22590] exit_group(0)               = ?
[pid 22590] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22590, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22014", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22014", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22014/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22014/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22014/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22014")                        = 0
mkdir("./22015", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22591 attached
, child_tidptr=0x55557a32b650) = 22591
[pid 22591] set_robust_list(0x55557a32b660, 24) = 0
[pid 22591] chdir("./22015")            = 0
[pid 22591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22591] setpgid(0, 0)               = 0
[pid 22591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22591] write(3, "1000", 4)         = 4
[pid 22591] close(3)                    = 0
[pid 22591] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22591] write(1, "executing program\n", 18executing program
) = 18
[pid 22591] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22591] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22591] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22591] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22591] exit_group(0)               = ?
[pid 22591] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22591, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22015", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22015", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22015/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22015/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22015/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22015")                        = 0
mkdir("./22016", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22592
./strace-static-x86_64: Process 22592 attached
[pid 22592] set_robust_list(0x55557a32b660, 24) = 0
[pid 22592] chdir("./22016")            = 0
[pid 22592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22592] setpgid(0, 0)               = 0
[pid 22592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22592] write(3, "1000", 4)         = 4
[pid 22592] close(3)                    = 0
executing program
[pid 22592] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22592] write(1, "executing program\n", 18) = 18
[pid 22592] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22592] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22592] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22592] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22592] exit_group(0)               = ?
[pid 22592] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22592, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22016", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22016", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22016/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22016/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22016/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22016")                        = 0
mkdir("./22017", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22593 attached
, child_tidptr=0x55557a32b650) = 22593
[pid 22593] set_robust_list(0x55557a32b660, 24) = 0
[pid 22593] chdir("./22017")            = 0
[pid 22593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22593] setpgid(0, 0)               = 0
[pid 22593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22593] write(3, "1000", 4)         = 4
[pid 22593] close(3)                    = 0
[pid 22593] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22593] write(1, "executing program\n", 18executing program
) = 18
[pid 22593] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22593] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22593] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22593] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22593] exit_group(0)               = ?
[pid 22593] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22593, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22017", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22017", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22017/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22017/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22017/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22017")                        = 0
mkdir("./22018", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22594
./strace-static-x86_64: Process 22594 attached
[pid 22594] set_robust_list(0x55557a32b660, 24) = 0
[pid 22594] chdir("./22018")            = 0
[pid 22594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22594] setpgid(0, 0)               = 0
[pid 22594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22594] write(3, "1000", 4)         = 4
[pid 22594] close(3)                    = 0
[pid 22594] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22594] write(1, "executing program\n", 18executing program
) = 18
[pid 22594] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22594] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22594] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22594] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22594] exit_group(0)               = ?
[pid 22594] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22594, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22018", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22018", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22018/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22018/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22018/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22018")                        = 0
mkdir("./22019", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22595 attached
, child_tidptr=0x55557a32b650) = 22595
[pid 22595] set_robust_list(0x55557a32b660, 24) = 0
[pid 22595] chdir("./22019")            = 0
[pid 22595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22595] setpgid(0, 0)               = 0
[pid 22595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22595] write(3, "1000", 4)         = 4
[pid 22595] close(3)                    = 0
[pid 22595] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22595] write(1, "executing program\n", 18executing program
) = 18
[pid 22595] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22595] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22595] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22595] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22595] exit_group(0)               = ?
[pid 22595] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22595, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22019", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22019", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22019/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22019/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22019/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22019")                        = 0
mkdir("./22020", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22596
./strace-static-x86_64: Process 22596 attached
[pid 22596] set_robust_list(0x55557a32b660, 24) = 0
[pid 22596] chdir("./22020")            = 0
[pid 22596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22596] setpgid(0, 0)               = 0
[pid 22596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22596] write(3, "1000", 4)         = 4
[pid 22596] close(3)                    = 0
[pid 22596] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22596] write(1, "executing program\n", 18executing program
) = 18
[pid 22596] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22596] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22596] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22596] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22596] exit_group(0)               = ?
[pid 22596] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22596, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22020", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22020", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22020/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22020/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22020/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22020")                        = 0
mkdir("./22021", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22597
./strace-static-x86_64: Process 22597 attached
[pid 22597] set_robust_list(0x55557a32b660, 24) = 0
[pid 22597] chdir("./22021")            = 0
[pid 22597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22597] setpgid(0, 0)               = 0
[pid 22597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22597] write(3, "1000", 4)         = 4
[pid 22597] close(3)                    = 0
[pid 22597] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22597] write(1, "executing program\n", 18executing program
) = 18
[pid 22597] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22597] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22597] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22597] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22597] exit_group(0)               = ?
[pid 22597] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22597, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22021", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22021", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22021/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22021/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22021/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22021")                        = 0
mkdir("./22022", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22598 attached
, child_tidptr=0x55557a32b650) = 22598
[pid 22598] set_robust_list(0x55557a32b660, 24) = 0
[pid 22598] chdir("./22022")            = 0
[pid 22598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22598] setpgid(0, 0)               = 0
[pid 22598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22598] write(3, "1000", 4)         = 4
[pid 22598] close(3)                    = 0
[pid 22598] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22598] write(1, "executing program\n", 18executing program
) = 18
[pid 22598] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22598] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22598] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22598] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22598] exit_group(0)               = ?
[pid 22598] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22598, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22022", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22022", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22022/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22022/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22022/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22022")                        = 0
mkdir("./22023", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22599
./strace-static-x86_64: Process 22599 attached
[pid 22599] set_robust_list(0x55557a32b660, 24) = 0
[pid 22599] chdir("./22023")            = 0
[pid 22599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22599] setpgid(0, 0)               = 0
[pid 22599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22599] write(3, "1000", 4)         = 4
[pid 22599] close(3)                    = 0
[pid 22599] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22599] write(1, "executing program\n", 18executing program
) = 18
[pid 22599] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22599] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22599] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22599] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22599] exit_group(0)               = ?
[pid 22599] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22599, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22023", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22023", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22023/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22023/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22023/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22023")                        = 0
mkdir("./22024", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22600 attached
 <unfinished ...>
[pid 22600] set_robust_list(0x55557a32b660, 24) = 0
[pid 22600] chdir("./22024" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22600
[pid 22600] <... chdir resumed>)        = 0
[pid 22600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22600] setpgid(0, 0)               = 0
[pid 22600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22600] write(3, "1000", 4)         = 4
[pid 22600] close(3)                    = 0
[pid 22600] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22600] write(1, "executing program\n", 18) = 18
[pid 22600] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22600] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22600] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22600] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22600] exit_group(0)               = ?
[pid 22600] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22600, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22024", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22024", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22024/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22024/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22024/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22024")                        = 0
mkdir("./22025", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22601
./strace-static-x86_64: Process 22601 attached
[pid 22601] set_robust_list(0x55557a32b660, 24) = 0
[pid 22601] chdir("./22025")            = 0
[pid 22601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22601] setpgid(0, 0)               = 0
[pid 22601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22601] write(3, "1000", 4)         = 4
[pid 22601] close(3)                    = 0
[pid 22601] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22601] write(1, "executing program\n", 18executing program
) = 18
[pid 22601] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22601] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22601] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22601] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22601] exit_group(0)               = ?
[pid 22601] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22601, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22025", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22025", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22025/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22025/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22025/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22025")                        = 0
mkdir("./22026", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22602
./strace-static-x86_64: Process 22602 attached
[pid 22602] set_robust_list(0x55557a32b660, 24) = 0
[pid 22602] chdir("./22026")            = 0
[pid 22602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22602] setpgid(0, 0)               = 0
[pid 22602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22602] write(3, "1000", 4)         = 4
[pid 22602] close(3)                    = 0
[pid 22602] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22602] write(1, "executing program\n", 18executing program
) = 18
[pid 22602] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22602] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22602] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22602] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22602] exit_group(0)               = ?
[pid 22602] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22602, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22026", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22026", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22026/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22026/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22026/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22026")                        = 0
mkdir("./22027", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22603 attached
, child_tidptr=0x55557a32b650) = 22603
[pid 22603] set_robust_list(0x55557a32b660, 24) = 0
[pid 22603] chdir("./22027")            = 0
[pid 22603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22603] setpgid(0, 0)               = 0
[pid 22603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22603] write(3, "1000", 4)         = 4
[pid 22603] close(3)                    = 0
[pid 22603] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22603] write(1, "executing program\n", 18executing program
) = 18
[pid 22603] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22603] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22603] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22603] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22603] exit_group(0)               = ?
[pid 22603] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22603, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22027", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22027", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22027/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22027/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22027/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22027")                        = 0
mkdir("./22028", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22604 attached
, child_tidptr=0x55557a32b650) = 22604
[pid 22604] set_robust_list(0x55557a32b660, 24) = 0
[pid 22604] chdir("./22028")            = 0
[pid 22604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22604] setpgid(0, 0)               = 0
[pid 22604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22604] write(3, "1000", 4)         = 4
[pid 22604] close(3)                    = 0
[pid 22604] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22604] write(1, "executing program\n", 18executing program
) = 18
[pid 22604] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22604] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22604] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22604] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22604] exit_group(0)               = ?
[pid 22604] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22604, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22028", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22028", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22028/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22028/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22028/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22028")                        = 0
mkdir("./22029", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22605
./strace-static-x86_64: Process 22605 attached
[pid 22605] set_robust_list(0x55557a32b660, 24) = 0
[pid 22605] chdir("./22029")            = 0
[pid 22605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22605] setpgid(0, 0)               = 0
[pid 22605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22605] write(3, "1000", 4)         = 4
[pid 22605] close(3)                    = 0
[pid 22605] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22605] write(1, "executing program\n", 18executing program
) = 18
[pid 22605] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22605] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22605] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22605] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22605] exit_group(0)               = ?
[pid 22605] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22605, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22029", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22029", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22029/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22029/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22029/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22029")                        = 0
mkdir("./22030", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22606 attached
, child_tidptr=0x55557a32b650) = 22606
[pid 22606] set_robust_list(0x55557a32b660, 24) = 0
[pid 22606] chdir("./22030")            = 0
[pid 22606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22606] setpgid(0, 0)               = 0
[pid 22606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22606] write(3, "1000", 4)         = 4
[pid 22606] close(3)                    = 0
[pid 22606] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22606] write(1, "executing program\n", 18executing program
) = 18
[pid 22606] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22606] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22606] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22606] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22606] exit_group(0)               = ?
[pid 22606] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22606, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22030", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22030", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22030/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22030/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22030/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22030")                        = 0
mkdir("./22031", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22607
./strace-static-x86_64: Process 22607 attached
[pid 22607] set_robust_list(0x55557a32b660, 24) = 0
[pid 22607] chdir("./22031")            = 0
[pid 22607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22607] setpgid(0, 0)               = 0
[pid 22607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22607] write(3, "1000", 4)         = 4
[pid 22607] close(3)                    = 0
[pid 22607] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22607] write(1, "executing program\n", 18executing program
) = 18
[pid 22607] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22607] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22607] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22607] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22607] exit_group(0)               = ?
[pid 22607] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22607, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22031", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22031", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22031/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22031/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22031/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22031")                        = 0
mkdir("./22032", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22608 attached
, child_tidptr=0x55557a32b650) = 22608
[pid 22608] set_robust_list(0x55557a32b660, 24) = 0
[pid 22608] chdir("./22032")            = 0
[pid 22608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22608] setpgid(0, 0)               = 0
[pid 22608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22608] write(3, "1000", 4)         = 4
[pid 22608] close(3)                    = 0
[pid 22608] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22608] write(1, "executing program\n", 18executing program
) = 18
[pid 22608] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22608] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22608] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22608] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22608] exit_group(0)               = ?
[pid 22608] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22608, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22032", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22032", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22032/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22032/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22032/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22032")                        = 0
mkdir("./22033", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22609
./strace-static-x86_64: Process 22609 attached
[pid 22609] set_robust_list(0x55557a32b660, 24) = 0
[pid 22609] chdir("./22033")            = 0
[pid 22609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22609] setpgid(0, 0)               = 0
[pid 22609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22609] write(3, "1000", 4)         = 4
[pid 22609] close(3)                    = 0
[pid 22609] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22609] write(1, "executing program\n", 18executing program
) = 18
[pid 22609] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22609] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22609] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22609] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22609] exit_group(0)               = ?
[pid 22609] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22609, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22033", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22033", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22033/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22033/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22033/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22033")                        = 0
mkdir("./22034", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22610
./strace-static-x86_64: Process 22610 attached
[pid 22610] set_robust_list(0x55557a32b660, 24) = 0
[pid 22610] chdir("./22034")            = 0
[pid 22610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22610] setpgid(0, 0)               = 0
[pid 22610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22610] write(3, "1000", 4)         = 4
[pid 22610] close(3)                    = 0
[pid 22610] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22610] write(1, "executing program\n", 18executing program
) = 18
[pid 22610] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22610] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22610] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22610] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22610] exit_group(0)               = ?
[pid 22610] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22610, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22034", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22034", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22034/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22034/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22034/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22034")                        = 0
mkdir("./22035", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22611 attached
, child_tidptr=0x55557a32b650) = 22611
[pid 22611] set_robust_list(0x55557a32b660, 24) = 0
[pid 22611] chdir("./22035")            = 0
[pid 22611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22611] setpgid(0, 0)               = 0
[pid 22611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22611] write(3, "1000", 4)         = 4
[pid 22611] close(3)                    = 0
[pid 22611] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22611] write(1, "executing program\n", 18executing program
) = 18
[pid 22611] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22611] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22611] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22611] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22611] exit_group(0)               = ?
[pid 22611] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22611, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22035", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22035", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22035/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22035/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22035/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22035")                        = 0
mkdir("./22036", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22612
./strace-static-x86_64: Process 22612 attached
[pid 22612] set_robust_list(0x55557a32b660, 24) = 0
[pid 22612] chdir("./22036")            = 0
[pid 22612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22612] setpgid(0, 0)               = 0
[pid 22612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22612] write(3, "1000", 4)         = 4
[pid 22612] close(3)                    = 0
[pid 22612] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22612] write(1, "executing program\n", 18executing program
) = 18
[pid 22612] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22612] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22612] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22612] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22612] exit_group(0)               = ?
[pid 22612] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22612, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22036", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22036", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22036/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22036/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22036/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22036")                        = 0
mkdir("./22037", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22613 attached
, child_tidptr=0x55557a32b650) = 22613
[pid 22613] set_robust_list(0x55557a32b660, 24) = 0
[pid 22613] chdir("./22037")            = 0
[pid 22613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22613] setpgid(0, 0)               = 0
[pid 22613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22613] write(3, "1000", 4)         = 4
[pid 22613] close(3)                    = 0
[pid 22613] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22613] write(1, "executing program\n", 18executing program
) = 18
[pid 22613] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22613] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22613] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22613] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22613] exit_group(0)               = ?
[pid 22613] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22613, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22037", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22037", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22037/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22037/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22037/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22037")                        = 0
mkdir("./22038", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22614 attached
 <unfinished ...>
[pid 22614] set_robust_list(0x55557a32b660, 24) = 0
[pid 22614] chdir("./22038" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22614
[pid 22614] <... chdir resumed>)        = 0
[pid 22614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22614] setpgid(0, 0)               = 0
[pid 22614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22614] write(3, "1000", 4)         = 4
[pid 22614] close(3)                    = 0
[pid 22614] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22614] write(1, "executing program\n", 18) = 18
[pid 22614] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22614] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22614] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22614] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22614] exit_group(0)               = ?
[pid 22614] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22614, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22038", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22038", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22038/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22038/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22038/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22038")                        = 0
mkdir("./22039", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22615
./strace-static-x86_64: Process 22615 attached
[pid 22615] set_robust_list(0x55557a32b660, 24) = 0
[pid 22615] chdir("./22039")            = 0
[pid 22615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22615] setpgid(0, 0)               = 0
[pid 22615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22615] write(3, "1000", 4)         = 4
[pid 22615] close(3)                    = 0
[pid 22615] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22615] write(1, "executing program\n", 18) = 18
[pid 22615] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22615] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22615] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22615] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22615] exit_group(0)               = ?
[pid 22615] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22615, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22039", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22039", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22039/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22039/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22039/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22039")                        = 0
mkdir("./22040", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22616
./strace-static-x86_64: Process 22616 attached
[pid 22616] set_robust_list(0x55557a32b660, 24) = 0
[pid 22616] chdir("./22040")            = 0
[pid 22616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22616] setpgid(0, 0)               = 0
[pid 22616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22616] write(3, "1000", 4)         = 4
[pid 22616] close(3)                    = 0
executing program
[pid 22616] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22616] write(1, "executing program\n", 18) = 18
[pid 22616] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22616] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22616] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22616] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22616] exit_group(0)               = ?
[pid 22616] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22616, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22040", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22040", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22040/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22040/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22040/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22040")                        = 0
mkdir("./22041", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22617
./strace-static-x86_64: Process 22617 attached
[pid 22617] set_robust_list(0x55557a32b660, 24) = 0
[pid 22617] chdir("./22041")            = 0
[pid 22617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22617] setpgid(0, 0)               = 0
[pid 22617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22617] write(3, "1000", 4)         = 4
[pid 22617] close(3)                    = 0
[pid 22617] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22617] write(1, "executing program\n", 18) = 18
[pid 22617] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22617] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22617] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22617] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22617] exit_group(0)               = ?
[pid 22617] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22617, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22041", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22041", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22041/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22041/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22041/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22041")                        = 0
mkdir("./22042", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22618
./strace-static-x86_64: Process 22618 attached
[pid 22618] set_robust_list(0x55557a32b660, 24) = 0
[pid 22618] chdir("./22042")            = 0
[pid 22618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22618] setpgid(0, 0)               = 0
[pid 22618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22618] write(3, "1000", 4)         = 4
[pid 22618] close(3)                    = 0
[pid 22618] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22618] write(1, "executing program\n", 18executing program
) = 18
[pid 22618] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22618] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22618] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22618] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22618] exit_group(0)               = ?
[pid 22618] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22618, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22042", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22042", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22042/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22042/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22042/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22042")                        = 0
mkdir("./22043", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22619
./strace-static-x86_64: Process 22619 attached
[pid 22619] set_robust_list(0x55557a32b660, 24) = 0
[pid 22619] chdir("./22043")            = 0
[pid 22619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22619] setpgid(0, 0)               = 0
[pid 22619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22619] write(3, "1000", 4)         = 4
[pid 22619] close(3)                    = 0
[pid 22619] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22619] write(1, "executing program\n", 18executing program
) = 18
[pid 22619] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22619] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22619] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22619] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22619] exit_group(0)               = ?
[pid 22619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22619, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22043", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22043", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22043/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22043/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22043/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22043")                        = 0
mkdir("./22044", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22620
./strace-static-x86_64: Process 22620 attached
[pid 22620] set_robust_list(0x55557a32b660, 24) = 0
[pid 22620] chdir("./22044")            = 0
[pid 22620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22620] setpgid(0, 0)               = 0
[pid 22620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22620] write(3, "1000", 4)         = 4
[pid 22620] close(3)                    = 0
[pid 22620] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22620] write(1, "executing program\n", 18executing program
) = 18
[pid 22620] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22620] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22620] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22620] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22620] exit_group(0)               = ?
[pid 22620] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22620, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22044", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22044", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22044/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22044/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22044/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22044")                        = 0
mkdir("./22045", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22621
./strace-static-x86_64: Process 22621 attached
[pid 22621] set_robust_list(0x55557a32b660, 24) = 0
[pid 22621] chdir("./22045")            = 0
[pid 22621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22621] setpgid(0, 0)               = 0
[pid 22621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22621] write(3, "1000", 4)         = 4
[pid 22621] close(3)                    = 0
[pid 22621] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22621] write(1, "executing program\n", 18executing program
) = 18
[pid 22621] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22621] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22621] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22621] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22621] exit_group(0)               = ?
[pid 22621] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22621, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22045", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22045", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22045/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22045/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22045/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22045")                        = 0
mkdir("./22046", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22622
./strace-static-x86_64: Process 22622 attached
[pid 22622] set_robust_list(0x55557a32b660, 24) = 0
[pid 22622] chdir("./22046")            = 0
[pid 22622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22622] setpgid(0, 0)               = 0
[pid 22622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22622] write(3, "1000", 4)         = 4
[pid 22622] close(3)                    = 0
[pid 22622] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22622] write(1, "executing program\n", 18executing program
) = 18
[pid 22622] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22622] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22622] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22622] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22622] exit_group(0)               = ?
[pid 22622] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22622, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22046", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22046", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22046/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22046/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22046/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22046")                        = 0
mkdir("./22047", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22623 attached
, child_tidptr=0x55557a32b650) = 22623
[pid 22623] set_robust_list(0x55557a32b660, 24) = 0
[pid 22623] chdir("./22047")            = 0
[pid 22623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22623] setpgid(0, 0)               = 0
[pid 22623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22623] write(3, "1000", 4)         = 4
[pid 22623] close(3)                    = 0
[pid 22623] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22623] write(1, "executing program\n", 18executing program
) = 18
[pid 22623] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22623] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22623] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22623] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22623] exit_group(0)               = ?
[pid 22623] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22623, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22047", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22047", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22047/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22047/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22047/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22047")                        = 0
mkdir("./22048", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22624
./strace-static-x86_64: Process 22624 attached
[pid 22624] set_robust_list(0x55557a32b660, 24) = 0
[pid 22624] chdir("./22048")            = 0
[pid 22624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22624] setpgid(0, 0)               = 0
[pid 22624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22624] write(3, "1000", 4)         = 4
[pid 22624] close(3)                    = 0
[pid 22624] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22624] write(1, "executing program\n", 18executing program
) = 18
[pid 22624] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22624] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22624] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22624] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22624] exit_group(0)               = ?
[pid 22624] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22624, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22048", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22048", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22048/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22048/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22048/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22048")                        = 0
mkdir("./22049", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22625
./strace-static-x86_64: Process 22625 attached
[pid 22625] set_robust_list(0x55557a32b660, 24) = 0
[pid 22625] chdir("./22049")            = 0
[pid 22625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22625] setpgid(0, 0)               = 0
[pid 22625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22625] write(3, "1000", 4)         = 4
[pid 22625] close(3)                    = 0
[pid 22625] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22625] write(1, "executing program\n", 18executing program
) = 18
[pid 22625] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22625] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22625] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22625] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22625] exit_group(0)               = ?
[pid 22625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22625, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22049", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22049", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22049/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22049/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22049/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22049")                        = 0
mkdir("./22050", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22626
./strace-static-x86_64: Process 22626 attached
[pid 22626] set_robust_list(0x55557a32b660, 24) = 0
[pid 22626] chdir("./22050")            = 0
[pid 22626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22626] setpgid(0, 0)               = 0
[pid 22626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22626] write(3, "1000", 4)         = 4
[pid 22626] close(3)                    = 0
[pid 22626] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22626] write(1, "executing program\n", 18) = 18
[pid 22626] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22626] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22626] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22626] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22626] exit_group(0)               = ?
[pid 22626] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22626, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22050", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22050", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22050/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22050/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22050/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22050")                        = 0
mkdir("./22051", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22627
./strace-static-x86_64: Process 22627 attached
[pid 22627] set_robust_list(0x55557a32b660, 24) = 0
[pid 22627] chdir("./22051")            = 0
[pid 22627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22627] setpgid(0, 0)               = 0
[pid 22627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22627] write(3, "1000", 4)         = 4
[pid 22627] close(3)                    = 0
[pid 22627] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22627] write(1, "executing program\n", 18executing program
) = 18
[pid 22627] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22627] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22627] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22627] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22627] exit_group(0)               = ?
[pid 22627] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22627, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22051", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22051", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22051/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22051/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22051/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22051")                        = 0
mkdir("./22052", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22628
./strace-static-x86_64: Process 22628 attached
[pid 22628] set_robust_list(0x55557a32b660, 24) = 0
[pid 22628] chdir("./22052")            = 0
[pid 22628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22628] setpgid(0, 0)               = 0
[pid 22628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22628] write(3, "1000", 4)         = 4
[pid 22628] close(3)                    = 0
[pid 22628] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22628] write(1, "executing program\n", 18executing program
) = 18
[pid 22628] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22628] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22628] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22628] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22628] exit_group(0)               = ?
[pid 22628] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22628, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22052", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22052", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22052/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22052/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22052/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22052")                        = 0
mkdir("./22053", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22629
./strace-static-x86_64: Process 22629 attached
[pid 22629] set_robust_list(0x55557a32b660, 24) = 0
[pid 22629] chdir("./22053")            = 0
[pid 22629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22629] setpgid(0, 0)               = 0
[pid 22629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22629] write(3, "1000", 4)         = 4
[pid 22629] close(3)                    = 0
[pid 22629] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22629] write(1, "executing program\n", 18) = 18
[pid 22629] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22629] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22629] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22629] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22629] exit_group(0)               = ?
[pid 22629] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22629, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22053", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22053", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22053/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22053/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22053/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22053")                        = 0
mkdir("./22054", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22630
./strace-static-x86_64: Process 22630 attached
[pid 22630] set_robust_list(0x55557a32b660, 24) = 0
[pid 22630] chdir("./22054")            = 0
[pid 22630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22630] setpgid(0, 0)               = 0
[pid 22630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22630] write(3, "1000", 4)         = 4
[pid 22630] close(3)                    = 0
[pid 22630] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22630] write(1, "executing program\n", 18executing program
) = 18
[pid 22630] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22630] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22630] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22630] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22630] exit_group(0)               = ?
[pid 22630] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22630, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22054", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22054", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22054/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22054/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22054/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22054")                        = 0
mkdir("./22055", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22631
./strace-static-x86_64: Process 22631 attached
[pid 22631] set_robust_list(0x55557a32b660, 24) = 0
[pid 22631] chdir("./22055")            = 0
[pid 22631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22631] setpgid(0, 0)               = 0
[pid 22631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22631] write(3, "1000", 4)         = 4
[pid 22631] close(3)                    = 0
[pid 22631] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22631] write(1, "executing program\n", 18executing program
) = 18
[pid 22631] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22631] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22631] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22631] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22631] exit_group(0)               = ?
[pid 22631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22631, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22055", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22055", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22055/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22055/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22055/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22055")                        = 0
mkdir("./22056", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22632
./strace-static-x86_64: Process 22632 attached
[pid 22632] set_robust_list(0x55557a32b660, 24) = 0
[pid 22632] chdir("./22056")            = 0
[pid 22632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22632] setpgid(0, 0)               = 0
[pid 22632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22632] write(3, "1000", 4)         = 4
[pid 22632] close(3)                    = 0
[pid 22632] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22632] write(1, "executing program\n", 18executing program
) = 18
[pid 22632] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22632] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22632] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22632] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22632] exit_group(0)               = ?
[pid 22632] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22632, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22056", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22056", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22056/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22056/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22056/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22056")                        = 0
mkdir("./22057", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22633
./strace-static-x86_64: Process 22633 attached
[pid 22633] set_robust_list(0x55557a32b660, 24) = 0
[pid 22633] chdir("./22057")            = 0
[pid 22633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22633] setpgid(0, 0)               = 0
[pid 22633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22633] write(3, "1000", 4)         = 4
[pid 22633] close(3)                    = 0
[pid 22633] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22633] write(1, "executing program\n", 18executing program
) = 18
[pid 22633] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22633] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22633] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22633] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22633] exit_group(0)               = ?
[pid 22633] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22633, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22057", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22057", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22057/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22057/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22057/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22057")                        = 0
mkdir("./22058", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22634 attached
, child_tidptr=0x55557a32b650) = 22634
[pid 22634] set_robust_list(0x55557a32b660, 24) = 0
[pid 22634] chdir("./22058")            = 0
[pid 22634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22634] setpgid(0, 0)               = 0
[pid 22634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22634] write(3, "1000", 4)         = 4
[pid 22634] close(3)                    = 0
[pid 22634] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22634] write(1, "executing program\n", 18executing program
) = 18
[pid 22634] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22634] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22634] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22634] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22634] exit_group(0)               = ?
[pid 22634] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22634, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22058", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22058", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22058/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22058/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22058/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22058")                        = 0
mkdir("./22059", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22635
./strace-static-x86_64: Process 22635 attached
[pid 22635] set_robust_list(0x55557a32b660, 24) = 0
[pid 22635] chdir("./22059")            = 0
[pid 22635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22635] setpgid(0, 0)               = 0
[pid 22635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22635] write(3, "1000", 4)         = 4
[pid 22635] close(3)                    = 0
[pid 22635] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22635] write(1, "executing program\n", 18executing program
) = 18
[pid 22635] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22635] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22635] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22635] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22635] exit_group(0)               = ?
[pid 22635] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22635, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22059", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22059", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22059/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22059/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22059/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22059")                        = 0
mkdir("./22060", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22636 attached
, child_tidptr=0x55557a32b650) = 22636
[pid 22636] set_robust_list(0x55557a32b660, 24) = 0
[pid 22636] chdir("./22060")            = 0
[pid 22636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22636] setpgid(0, 0)               = 0
[pid 22636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22636] write(3, "1000", 4)         = 4
[pid 22636] close(3)                    = 0
[pid 22636] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22636] write(1, "executing program\n", 18executing program
) = 18
[pid 22636] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22636] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22636] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22636] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22636] exit_group(0)               = ?
[pid 22636] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22636, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22060", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22060", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22060/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22060/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22060/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22060")                        = 0
mkdir("./22061", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22637
./strace-static-x86_64: Process 22637 attached
[pid 22637] set_robust_list(0x55557a32b660, 24) = 0
[pid 22637] chdir("./22061")            = 0
[pid 22637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22637] setpgid(0, 0)               = 0
[pid 22637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22637] write(3, "1000", 4)         = 4
[pid 22637] close(3)                    = 0
[pid 22637] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22637] write(1, "executing program\n", 18executing program
) = 18
[pid 22637] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22637] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22637] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22637] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22637] exit_group(0)               = ?
[pid 22637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22637, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22061", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22061", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22061/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22061/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22061/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22061")                        = 0
mkdir("./22062", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22638 attached
, child_tidptr=0x55557a32b650) = 22638
[pid 22638] set_robust_list(0x55557a32b660, 24) = 0
[pid 22638] chdir("./22062")            = 0
[pid 22638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22638] setpgid(0, 0)               = 0
[pid 22638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22638] write(3, "1000", 4)         = 4
[pid 22638] close(3)                    = 0
[pid 22638] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22638] write(1, "executing program\n", 18executing program
) = 18
[pid 22638] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22638] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22638] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22638] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22638] exit_group(0)               = ?
[pid 22638] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22638, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22062", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22062", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22062/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22062/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22062/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22062")                        = 0
mkdir("./22063", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22639
./strace-static-x86_64: Process 22639 attached
[pid 22639] set_robust_list(0x55557a32b660, 24) = 0
[pid 22639] chdir("./22063")            = 0
[pid 22639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22639] setpgid(0, 0)               = 0
[pid 22639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22639] write(3, "1000", 4)         = 4
[pid 22639] close(3)                    = 0
[pid 22639] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22639] write(1, "executing program\n", 18executing program
) = 18
[pid 22639] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22639] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22639] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22639] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22639] exit_group(0)               = ?
[pid 22639] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22639, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22063", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22063", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22063/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22063/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22063/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22063")                        = 0
mkdir("./22064", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22640
./strace-static-x86_64: Process 22640 attached
[pid 22640] set_robust_list(0x55557a32b660, 24) = 0
[pid 22640] chdir("./22064")            = 0
[pid 22640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22640] setpgid(0, 0)               = 0
[pid 22640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22640] write(3, "1000", 4)         = 4
[pid 22640] close(3)                    = 0
[pid 22640] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22640] write(1, "executing program\n", 18executing program
) = 18
[pid 22640] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22640] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22640] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22640] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22640] exit_group(0)               = ?
[pid 22640] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22640, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22064", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22064", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22064/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22064/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22064/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22064")                        = 0
mkdir("./22065", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22641
./strace-static-x86_64: Process 22641 attached
[pid 22641] set_robust_list(0x55557a32b660, 24) = 0
[pid 22641] chdir("./22065")            = 0
[pid 22641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22641] setpgid(0, 0)               = 0
[pid 22641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22641] write(3, "1000", 4)         = 4
[pid 22641] close(3)                    = 0
[pid 22641] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22641] write(1, "executing program\n", 18executing program
) = 18
[pid 22641] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22641] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22641] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22641] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22641] exit_group(0)               = ?
[pid 22641] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22641, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22065", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22065", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22065/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22065/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22065/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22065")                        = 0
mkdir("./22066", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22642 attached
, child_tidptr=0x55557a32b650) = 22642
[pid 22642] set_robust_list(0x55557a32b660, 24) = 0
[pid 22642] chdir("./22066")            = 0
[pid 22642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22642] setpgid(0, 0)               = 0
[pid 22642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22642] write(3, "1000", 4)         = 4
[pid 22642] close(3)                    = 0
[pid 22642] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22642] write(1, "executing program\n", 18executing program
) = 18
[pid 22642] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22642] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22642] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22642] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22642] exit_group(0)               = ?
[pid 22642] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22642, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22066", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22066", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22066/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22066/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22066/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22066")                        = 0
mkdir("./22067", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22643 attached
, child_tidptr=0x55557a32b650) = 22643
[pid 22643] set_robust_list(0x55557a32b660, 24) = 0
[pid 22643] chdir("./22067")            = 0
[pid 22643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22643] setpgid(0, 0)               = 0
[pid 22643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22643] write(3, "1000", 4)         = 4
[pid 22643] close(3)                    = 0
[pid 22643] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22643] write(1, "executing program\n", 18executing program
) = 18
[pid 22643] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22643] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22643] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22643] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22643] exit_group(0)               = ?
[pid 22643] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22643, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22067", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22067", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22067/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22067/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22067/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22067")                        = 0
mkdir("./22068", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22644
./strace-static-x86_64: Process 22644 attached
[pid 22644] set_robust_list(0x55557a32b660, 24) = 0
[pid 22644] chdir("./22068")            = 0
[pid 22644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22644] setpgid(0, 0)               = 0
[pid 22644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22644] write(3, "1000", 4)         = 4
[pid 22644] close(3)                    = 0
[pid 22644] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22644] write(1, "executing program\n", 18executing program
) = 18
[pid 22644] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22644] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22644] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22644] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22644] exit_group(0)               = ?
[pid 22644] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22644, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22068", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22068", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22068/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22068/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22068/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22068")                        = 0
mkdir("./22069", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22645
./strace-static-x86_64: Process 22645 attached
[pid 22645] set_robust_list(0x55557a32b660, 24) = 0
[pid 22645] chdir("./22069")            = 0
[pid 22645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22645] setpgid(0, 0)               = 0
[pid 22645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22645] write(3, "1000", 4)         = 4
[pid 22645] close(3)                    = 0
[pid 22645] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22645] write(1, "executing program\n", 18executing program
) = 18
[pid 22645] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22645] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22645] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22645] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22645] exit_group(0)               = ?
[pid 22645] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22645, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22069", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22069", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22069/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22069/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22069/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22069")                        = 0
mkdir("./22070", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22646 attached
, child_tidptr=0x55557a32b650) = 22646
[pid 22646] set_robust_list(0x55557a32b660, 24) = 0
[pid 22646] chdir("./22070")            = 0
[pid 22646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22646] setpgid(0, 0)               = 0
[pid 22646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22646] write(3, "1000", 4)         = 4
[pid 22646] close(3)                    = 0
[pid 22646] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22646] write(1, "executing program\n", 18executing program
) = 18
[pid 22646] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22646] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22646] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22646] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22646] exit_group(0)               = ?
[pid 22646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22646, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22070", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22070", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22070/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22070/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22070/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22070")                        = 0
mkdir("./22071", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22647 attached
, child_tidptr=0x55557a32b650) = 22647
[pid 22647] set_robust_list(0x55557a32b660, 24) = 0
[pid 22647] chdir("./22071")            = 0
[pid 22647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22647] setpgid(0, 0)               = 0
[pid 22647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22647] write(3, "1000", 4)         = 4
[pid 22647] close(3)                    = 0
[pid 22647] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22647] write(1, "executing program\n", 18executing program
) = 18
[pid 22647] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22647] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22647] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22647] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22647] exit_group(0)               = ?
[pid 22647] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22647, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22071", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22071", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22071/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22071/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22071/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22071")                        = 0
mkdir("./22072", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22648 attached
, child_tidptr=0x55557a32b650) = 22648
[pid 22648] set_robust_list(0x55557a32b660, 24) = 0
[pid 22648] chdir("./22072")            = 0
[pid 22648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22648] setpgid(0, 0)               = 0
[pid 22648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22648] write(3, "1000", 4)         = 4
[pid 22648] close(3)                    = 0
[pid 22648] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22648] write(1, "executing program\n", 18executing program
) = 18
[pid 22648] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22648] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22648] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22648] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22648] exit_group(0)               = ?
[pid 22648] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22648, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22072", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22072", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22072/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22072/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22072/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22072")                        = 0
mkdir("./22073", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22649
./strace-static-x86_64: Process 22649 attached
[pid 22649] set_robust_list(0x55557a32b660, 24) = 0
[pid 22649] chdir("./22073")            = 0
[pid 22649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22649] setpgid(0, 0)               = 0
[pid 22649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22649] write(3, "1000", 4)         = 4
[pid 22649] close(3)                    = 0
[pid 22649] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22649] write(1, "executing program\n", 18executing program
) = 18
[pid 22649] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22649] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22649] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22649] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22649] exit_group(0)               = ?
[pid 22649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22649, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22073", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22073", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22073/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22073/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22073/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22073")                        = 0
mkdir("./22074", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22650 attached
, child_tidptr=0x55557a32b650) = 22650
[pid 22650] set_robust_list(0x55557a32b660, 24) = 0
[pid 22650] chdir("./22074")            = 0
[pid 22650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22650] setpgid(0, 0)               = 0
[pid 22650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22650] write(3, "1000", 4)         = 4
[pid 22650] close(3)                    = 0
[pid 22650] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22650] write(1, "executing program\n", 18executing program
) = 18
[pid 22650] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22650] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22650] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22650] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22650] exit_group(0)               = ?
[pid 22650] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22650, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22074", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22074", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22074/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22074/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22074/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22074")                        = 0
mkdir("./22075", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22651
./strace-static-x86_64: Process 22651 attached
[pid 22651] set_robust_list(0x55557a32b660, 24) = 0
[pid 22651] chdir("./22075")            = 0
[pid 22651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22651] setpgid(0, 0)               = 0
[pid 22651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22651] write(3, "1000", 4)         = 4
[pid 22651] close(3)                    = 0
[pid 22651] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22651] write(1, "executing program\n", 18executing program
) = 18
[pid 22651] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22651] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22651] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22651] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22651] exit_group(0)               = ?
[pid 22651] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22651, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22075", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22075", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22075/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22075/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22075/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22075")                        = 0
mkdir("./22076", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22652
./strace-static-x86_64: Process 22652 attached
[pid 22652] set_robust_list(0x55557a32b660, 24) = 0
[pid 22652] chdir("./22076")            = 0
[pid 22652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22652] setpgid(0, 0)               = 0
[pid 22652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22652] write(3, "1000", 4)         = 4
[pid 22652] close(3)                    = 0
[pid 22652] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22652] write(1, "executing program\n", 18executing program
) = 18
[pid 22652] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22652] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22652] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22652] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22652] exit_group(0)               = ?
[pid 22652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22652, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22076", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22076", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22076/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22076/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22076/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22076")                        = 0
mkdir("./22077", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22653 attached
, child_tidptr=0x55557a32b650) = 22653
[pid 22653] set_robust_list(0x55557a32b660, 24) = 0
[pid 22653] chdir("./22077")            = 0
[pid 22653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22653] setpgid(0, 0)               = 0
[pid 22653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22653] write(3, "1000", 4)         = 4
[pid 22653] close(3)                    = 0
[pid 22653] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22653] write(1, "executing program\n", 18executing program
) = 18
[pid 22653] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22653] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22653] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22653] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22653] exit_group(0)               = ?
[pid 22653] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22653, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22077", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22077", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22077/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22077/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22077/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22077")                        = 0
mkdir("./22078", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22654 attached
, child_tidptr=0x55557a32b650) = 22654
[pid 22654] set_robust_list(0x55557a32b660, 24) = 0
[pid 22654] chdir("./22078")            = 0
[pid 22654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22654] setpgid(0, 0)               = 0
[pid 22654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22654] write(3, "1000", 4)         = 4
[pid 22654] close(3)                    = 0
[pid 22654] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22654] write(1, "executing program\n", 18executing program
) = 18
[pid 22654] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22654] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22654] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22654] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22654] exit_group(0)               = ?
[pid 22654] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22654, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22078", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22078", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22078/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22078/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22078/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22078")                        = 0
mkdir("./22079", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22655
./strace-static-x86_64: Process 22655 attached
[pid 22655] set_robust_list(0x55557a32b660, 24) = 0
[pid 22655] chdir("./22079")            = 0
[pid 22655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22655] setpgid(0, 0)               = 0
[pid 22655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22655] write(3, "1000", 4)         = 4
[pid 22655] close(3)                    = 0
[pid 22655] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22655] write(1, "executing program\n", 18executing program
) = 18
[pid 22655] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22655] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22655] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22655] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22655] exit_group(0)               = ?
[pid 22655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22655, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22079", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22079", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22079/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22079/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22079/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22079")                        = 0
mkdir("./22080", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22656 attached
, child_tidptr=0x55557a32b650) = 22656
[pid 22656] set_robust_list(0x55557a32b660, 24) = 0
[pid 22656] chdir("./22080")            = 0
[pid 22656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22656] setpgid(0, 0)               = 0
[pid 22656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22656] write(3, "1000", 4)         = 4
[pid 22656] close(3)                    = 0
[pid 22656] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22656] write(1, "executing program\n", 18executing program
) = 18
[pid 22656] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22656] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22656] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22656] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22656] exit_group(0)               = ?
[pid 22656] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22656, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22080", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22080", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22080/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22080/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22080/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22080")                        = 0
mkdir("./22081", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22657
./strace-static-x86_64: Process 22657 attached
[pid 22657] set_robust_list(0x55557a32b660, 24) = 0
[pid 22657] chdir("./22081")            = 0
[pid 22657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22657] setpgid(0, 0)               = 0
[pid 22657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22657] write(3, "1000", 4)         = 4
[pid 22657] close(3)                    = 0
[pid 22657] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22657] write(1, "executing program\n", 18) = 18
[pid 22657] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22657] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22657] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22657] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22657] exit_group(0)               = ?
[pid 22657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22657, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22081", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22081", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22081/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22081/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22081/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22081")                        = 0
mkdir("./22082", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22658
./strace-static-x86_64: Process 22658 attached
[pid 22658] set_robust_list(0x55557a32b660, 24) = 0
[pid 22658] chdir("./22082")            = 0
[pid 22658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22658] setpgid(0, 0)               = 0
[pid 22658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22658] write(3, "1000", 4)         = 4
[pid 22658] close(3)                    = 0
[pid 22658] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22658] write(1, "executing program\n", 18) = 18
[pid 22658] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22658] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22658] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22658] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22658] exit_group(0)               = ?
[pid 22658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22658, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22082", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22082", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22082/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22082/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22082/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22082")                        = 0
mkdir("./22083", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22659 attached
, child_tidptr=0x55557a32b650) = 22659
[pid 22659] set_robust_list(0x55557a32b660, 24) = 0
[pid 22659] chdir("./22083")            = 0
[pid 22659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22659] setpgid(0, 0)               = 0
[pid 22659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22659] write(3, "1000", 4)         = 4
[pid 22659] close(3)                    = 0
[pid 22659] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22659] write(1, "executing program\n", 18) = 18
[pid 22659] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22659] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22659] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22659] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22659] exit_group(0)               = ?
[pid 22659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22659, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22083", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22083", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22083/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22083/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22083/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22083")                        = 0
mkdir("./22084", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22660 attached
, child_tidptr=0x55557a32b650) = 22660
[pid 22660] set_robust_list(0x55557a32b660, 24) = 0
[pid 22660] chdir("./22084")            = 0
[pid 22660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22660] setpgid(0, 0)               = 0
[pid 22660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22660] write(3, "1000", 4)         = 4
[pid 22660] close(3)                    = 0
[pid 22660] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22660] write(1, "executing program\n", 18executing program
) = 18
[pid 22660] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22660] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22660] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22660] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22660] exit_group(0)               = ?
[pid 22660] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22660, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22084", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22084", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22084/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22084/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22084/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22084")                        = 0
mkdir("./22085", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22661 attached
, child_tidptr=0x55557a32b650) = 22661
[pid 22661] set_robust_list(0x55557a32b660, 24) = 0
[pid 22661] chdir("./22085")            = 0
[pid 22661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22661] setpgid(0, 0)               = 0
[pid 22661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22661] write(3, "1000", 4)         = 4
[pid 22661] close(3)                    = 0
[pid 22661] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22661] write(1, "executing program\n", 18executing program
) = 18
[pid 22661] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22661] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22661] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22661] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22661] exit_group(0)               = ?
[pid 22661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22661, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22085", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22085", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22085/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22085/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22085/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22085")                        = 0
mkdir("./22086", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22662 attached
 <unfinished ...>
[pid 22662] set_robust_list(0x55557a32b660, 24) = 0
[pid 22662] chdir("./22086")            = 0
[pid 22662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22662] setpgid(0, 0)               = 0
[pid 22662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22662] write(3, "1000", 4)         = 4
[pid 22662] close(3)                    = 0
[pid 22662] symlink("/dev/binderfs", "./binderfs" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22662
executing program
[pid 22662] <... symlink resumed>)      = 0
[pid 22662] write(1, "executing program\n", 18) = 18
[pid 22662] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22662] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22662] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22662] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22662] exit_group(0)               = ?
[pid 22662] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22662, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22086", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22086", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22086/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22086/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22086/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22086")                        = 0
mkdir("./22087", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22663 attached
, child_tidptr=0x55557a32b650) = 22663
[pid 22663] set_robust_list(0x55557a32b660, 24) = 0
[pid 22663] chdir("./22087")            = 0
[pid 22663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22663] setpgid(0, 0)               = 0
[pid 22663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22663] write(3, "1000", 4)         = 4
[pid 22663] close(3)                    = 0
[pid 22663] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22663] write(1, "executing program\n", 18executing program
) = 18
[pid 22663] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22663] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22663] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22663] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22663] exit_group(0)               = ?
[pid 22663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22663, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22087", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22087", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22087/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22087/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22087/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22087")                        = 0
mkdir("./22088", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22664 attached
, child_tidptr=0x55557a32b650) = 22664
[pid 22664] set_robust_list(0x55557a32b660, 24) = 0
[pid 22664] chdir("./22088")            = 0
[pid 22664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22664] setpgid(0, 0)               = 0
[pid 22664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22664] write(3, "1000", 4)         = 4
[pid 22664] close(3)                    = 0
[pid 22664] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22664] write(1, "executing program\n", 18executing program
) = 18
[pid 22664] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22664] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22664] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22664] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22664] exit_group(0)               = ?
[pid 22664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22664, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22088", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22088", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22088/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22088/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22088/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22088")                        = 0
mkdir("./22089", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22666
./strace-static-x86_64: Process 22666 attached
[pid 22666] set_robust_list(0x55557a32b660, 24) = 0
[pid 22666] chdir("./22089")            = 0
[pid 22666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22666] setpgid(0, 0)               = 0
[pid 22666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22666] write(3, "1000", 4)         = 4
[pid 22666] close(3)                    = 0
[pid 22666] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22666] write(1, "executing program\n", 18executing program
) = 18
[pid 22666] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22666] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22666] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22666] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22666] exit_group(0)               = ?
[pid 22666] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22666, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22089", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22089", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22089/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22089/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22089/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22089")                        = 0
mkdir("./22090", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22667
./strace-static-x86_64: Process 22667 attached
[pid 22667] set_robust_list(0x55557a32b660, 24) = 0
[pid 22667] chdir("./22090")            = 0
[pid 22667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22667] setpgid(0, 0)               = 0
[pid 22667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22667] write(3, "1000", 4)         = 4
[pid 22667] close(3)                    = 0
[pid 22667] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22667] write(1, "executing program\n", 18executing program
) = 18
[pid 22667] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22667] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22667] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22667] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22667] exit_group(0)               = ?
[pid 22667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22667, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22090", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22090", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22090/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22090/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22090/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22090")                        = 0
mkdir("./22091", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22668 attached
, child_tidptr=0x55557a32b650) = 22668
[pid 22668] set_robust_list(0x55557a32b660, 24) = 0
[pid 22668] chdir("./22091")            = 0
[pid 22668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22668] setpgid(0, 0)               = 0
[pid 22668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22668] write(3, "1000", 4)         = 4
[pid 22668] close(3)                    = 0
[pid 22668] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22668] write(1, "executing program\n", 18executing program
) = 18
[pid 22668] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22668] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22668] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22668] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22668] exit_group(0)               = ?
[pid 22668] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22668, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22091", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22091", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22091/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22091/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22091/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22091")                        = 0
mkdir("./22092", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22669
./strace-static-x86_64: Process 22669 attached
[pid 22669] set_robust_list(0x55557a32b660, 24) = 0
[pid 22669] chdir("./22092")            = 0
[pid 22669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22669] setpgid(0, 0)               = 0
[pid 22669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22669] write(3, "1000", 4)         = 4
[pid 22669] close(3)                    = 0
[pid 22669] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22669] write(1, "executing program\n", 18executing program
) = 18
[pid 22669] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22669] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22669] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22669] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22669] exit_group(0)               = ?
[pid 22669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22669, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22092", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22092", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22092/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22092/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22092/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22092")                        = 0
mkdir("./22093", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22670 attached
, child_tidptr=0x55557a32b650) = 22670
[pid 22670] set_robust_list(0x55557a32b660, 24) = 0
[pid 22670] chdir("./22093")            = 0
[pid 22670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22670] setpgid(0, 0)               = 0
[pid 22670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22670] write(3, "1000", 4)         = 4
[pid 22670] close(3)                    = 0
[pid 22670] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22670] write(1, "executing program\n", 18executing program
) = 18
[pid 22670] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22670] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22670] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22670] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22670] exit_group(0)               = ?
[pid 22670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22670, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22093", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22093", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22093/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22093/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22093/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22093")                        = 0
mkdir("./22094", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22671
./strace-static-x86_64: Process 22671 attached
[pid 22671] set_robust_list(0x55557a32b660, 24) = 0
[pid 22671] chdir("./22094")            = 0
[pid 22671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22671] setpgid(0, 0)               = 0
[pid 22671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22671] write(3, "1000", 4)         = 4
[pid 22671] close(3)                    = 0
[pid 22671] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22671] write(1, "executing program\n", 18) = 18
[pid 22671] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22671] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22671] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22671] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22671] exit_group(0)               = ?
[pid 22671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22671, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22094", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22094", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22094/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22094/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22094/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22094")                        = 0
mkdir("./22095", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22672 attached
, child_tidptr=0x55557a32b650) = 22672
[pid 22672] set_robust_list(0x55557a32b660, 24) = 0
[pid 22672] chdir("./22095")            = 0
[pid 22672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22672] setpgid(0, 0)               = 0
[pid 22672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22672] write(3, "1000", 4)         = 4
[pid 22672] close(3)                    = 0
[pid 22672] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22672] write(1, "executing program\n", 18executing program
) = 18
[pid 22672] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22672] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22672] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22672] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22672] exit_group(0)               = ?
[pid 22672] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22672, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22095", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22095", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22095/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22095/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22095/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22095")                        = 0
mkdir("./22096", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22673
./strace-static-x86_64: Process 22673 attached
[pid 22673] set_robust_list(0x55557a32b660, 24) = 0
[pid 22673] chdir("./22096")            = 0
[pid 22673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22673] setpgid(0, 0)               = 0
[pid 22673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22673] write(3, "1000", 4)         = 4
[pid 22673] close(3)                    = 0
[pid 22673] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22673] write(1, "executing program\n", 18) = 18
[pid 22673] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22673] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22673] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22673] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22673] exit_group(0)               = ?
[pid 22673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22673, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22096", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22096", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22096/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22096/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22096/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22096")                        = 0
mkdir("./22097", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22674
./strace-static-x86_64: Process 22674 attached
[pid 22674] set_robust_list(0x55557a32b660, 24) = 0
[pid 22674] chdir("./22097")            = 0
[pid 22674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22674] setpgid(0, 0)               = 0
[pid 22674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22674] write(3, "1000", 4)         = 4
[pid 22674] close(3)                    = 0
[pid 22674] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22674] write(1, "executing program\n", 18executing program
) = 18
[pid 22674] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22674] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22674] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22674] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22674] exit_group(0)               = ?
[pid 22674] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22674, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22097", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22097", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22097/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22097/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22097/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22097")                        = 0
mkdir("./22098", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22675
./strace-static-x86_64: Process 22675 attached
[pid 22675] set_robust_list(0x55557a32b660, 24) = 0
[pid 22675] chdir("./22098")            = 0
[pid 22675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22675] setpgid(0, 0)               = 0
[pid 22675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22675] write(3, "1000", 4)         = 4
[pid 22675] close(3)                    = 0
[pid 22675] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22675] write(1, "executing program\n", 18executing program
) = 18
[pid 22675] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22675] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22675] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22675] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22675] exit_group(0)               = ?
[pid 22675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22675, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22098", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22098", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22098/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22098/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22098/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22098")                        = 0
mkdir("./22099", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22676 attached
, child_tidptr=0x55557a32b650) = 22676
[pid 22676] set_robust_list(0x55557a32b660, 24) = 0
[pid 22676] chdir("./22099")            = 0
[pid 22676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22676] setpgid(0, 0)               = 0
[pid 22676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22676] write(3, "1000", 4)         = 4
[pid 22676] close(3)                    = 0
[pid 22676] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22676] write(1, "executing program\n", 18) = 18
[pid 22676] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22676] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22676] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22676] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22676] exit_group(0)               = ?
[pid 22676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22676, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22099", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22099", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22099/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22099/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22099/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22099")                        = 0
mkdir("./22100", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22677 attached
, child_tidptr=0x55557a32b650) = 22677
[pid 22677] set_robust_list(0x55557a32b660, 24) = 0
[pid 22677] chdir("./22100")            = 0
[pid 22677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22677] setpgid(0, 0)               = 0
[pid 22677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22677] write(3, "1000", 4)         = 4
[pid 22677] close(3)                    = 0
[pid 22677] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22677] write(1, "executing program\n", 18executing program
) = 18
[pid 22677] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22677] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22677] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22677] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22677] exit_group(0)               = ?
[pid 22677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22677, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22100", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22100/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22100/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22100")                        = 0
mkdir("./22101", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22678
./strace-static-x86_64: Process 22678 attached
[pid 22678] set_robust_list(0x55557a32b660, 24) = 0
[pid 22678] chdir("./22101")            = 0
[pid 22678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22678] setpgid(0, 0)               = 0
[pid 22678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22678] write(3, "1000", 4)         = 4
[pid 22678] close(3)                    = 0
[pid 22678] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22678] write(1, "executing program\n", 18executing program
) = 18
[pid 22678] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22678] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22678] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22678] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22678] exit_group(0)               = ?
[pid 22678] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22678, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22101", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22101/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22101/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22101")                        = 0
mkdir("./22102", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22679
./strace-static-x86_64: Process 22679 attached
[pid 22679] set_robust_list(0x55557a32b660, 24) = 0
[pid 22679] chdir("./22102")            = 0
[pid 22679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22679] setpgid(0, 0)               = 0
[pid 22679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22679] write(3, "1000", 4)         = 4
[pid 22679] close(3)                    = 0
[pid 22679] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22679] write(1, "executing program\n", 18executing program
) = 18
[pid 22679] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22679] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22679] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22679] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22679] exit_group(0)               = ?
[pid 22679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22679, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22102", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22102/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22102/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22102")                        = 0
mkdir("./22103", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22680 attached
, child_tidptr=0x55557a32b650) = 22680
[pid 22680] set_robust_list(0x55557a32b660, 24) = 0
[pid 22680] chdir("./22103")            = 0
[pid 22680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22680] setpgid(0, 0)               = 0
[pid 22680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22680] write(3, "1000", 4)         = 4
[pid 22680] close(3)                    = 0
[pid 22680] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22680] write(1, "executing program\n", 18executing program
) = 18
[pid 22680] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22680] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22680] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22680] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22680] exit_group(0)               = ?
[pid 22680] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22680, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22103", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22103/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22103/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22103")                        = 0
mkdir("./22104", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22681
./strace-static-x86_64: Process 22681 attached
[pid 22681] set_robust_list(0x55557a32b660, 24) = 0
[pid 22681] chdir("./22104")            = 0
[pid 22681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22681] setpgid(0, 0)               = 0
[pid 22681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22681] write(3, "1000", 4)         = 4
[pid 22681] close(3)                    = 0
[pid 22681] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22681] write(1, "executing program\n", 18executing program
) = 18
[pid 22681] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22681] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22681] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22681] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22681] exit_group(0)               = ?
[pid 22681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22681, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22104", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22104/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22104/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22104")                        = 0
mkdir("./22105", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22682
./strace-static-x86_64: Process 22682 attached
[pid 22682] set_robust_list(0x55557a32b660, 24) = 0
[pid 22682] chdir("./22105")            = 0
[pid 22682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22682] setpgid(0, 0)               = 0
[pid 22682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22682] write(3, "1000", 4)         = 4
[pid 22682] close(3)                    = 0
[pid 22682] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22682] write(1, "executing program\n", 18executing program
) = 18
[pid 22682] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22682] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22682] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22682] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22682] exit_group(0)               = ?
[pid 22682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22682, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22105", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22105/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22105/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22105")                        = 0
mkdir("./22106", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22683
./strace-static-x86_64: Process 22683 attached
[pid 22683] set_robust_list(0x55557a32b660, 24) = 0
[pid 22683] chdir("./22106")            = 0
[pid 22683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22683] setpgid(0, 0)               = 0
[pid 22683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22683] write(3, "1000", 4)         = 4
[pid 22683] close(3)                    = 0
[pid 22683] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22683] write(1, "executing program\n", 18) = 18
[pid 22683] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22683] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22683] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22683] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22683] exit_group(0)               = ?
[pid 22683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22683, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22106", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22106/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22106/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22106")                        = 0
mkdir("./22107", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22684
./strace-static-x86_64: Process 22684 attached
[pid 22684] set_robust_list(0x55557a32b660, 24) = 0
[pid 22684] chdir("./22107")            = 0
[pid 22684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22684] setpgid(0, 0)               = 0
[pid 22684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22684] write(3, "1000", 4)         = 4
[pid 22684] close(3)                    = 0
[pid 22684] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22684] write(1, "executing program\n", 18executing program
) = 18
[pid 22684] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22684] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22684] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22684] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22684] exit_group(0)               = ?
[pid 22684] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22684, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22107", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22107/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22107/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22107")                        = 0
mkdir("./22108", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22685 attached
, child_tidptr=0x55557a32b650) = 22685
[pid 22685] set_robust_list(0x55557a32b660, 24) = 0
[pid 22685] chdir("./22108")            = 0
[pid 22685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22685] setpgid(0, 0)               = 0
[pid 22685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22685] write(3, "1000", 4)         = 4
[pid 22685] close(3)                    = 0
[pid 22685] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22685] write(1, "executing program\n", 18executing program
) = 18
[pid 22685] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22685] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22685] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22685] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22685] exit_group(0)               = ?
[pid 22685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22685, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22108", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22108/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22108/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22108")                        = 0
mkdir("./22109", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22686 attached
 <unfinished ...>
[pid 22686] set_robust_list(0x55557a32b660, 24) = 0
[pid 22686] chdir("./22109" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22686
[pid 22686] <... chdir resumed>)        = 0
[pid 22686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22686] setpgid(0, 0)               = 0
[pid 22686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22686] write(3, "1000", 4)         = 4
[pid 22686] close(3)                    = 0
[pid 22686] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22686] write(1, "executing program\n", 18executing program
) = 18
[pid 22686] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22686] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22686] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22686] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22686] exit_group(0)               = ?
[pid 22686] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22686, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22109", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22109/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22109/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22109")                        = 0
mkdir("./22110", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22687
./strace-static-x86_64: Process 22687 attached
[pid 22687] set_robust_list(0x55557a32b660, 24) = 0
[pid 22687] chdir("./22110")            = 0
[pid 22687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22687] setpgid(0, 0)               = 0
[pid 22687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22687] write(3, "1000", 4)         = 4
[pid 22687] close(3)                    = 0
[pid 22687] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22687] write(1, "executing program\n", 18executing program
) = 18
[pid 22687] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22687] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22687] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22687] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22687] exit_group(0)               = ?
[pid 22687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22687, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22110", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22110/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22110/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22110")                        = 0
mkdir("./22111", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22688
./strace-static-x86_64: Process 22688 attached
[pid 22688] set_robust_list(0x55557a32b660, 24) = 0
[pid 22688] chdir("./22111")            = 0
[pid 22688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22688] setpgid(0, 0)               = 0
[pid 22688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22688] write(3, "1000", 4)         = 4
[pid 22688] close(3)                    = 0
[pid 22688] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22688] write(1, "executing program\n", 18executing program
) = 18
[pid 22688] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22688] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22688] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22688] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22688] exit_group(0)               = ?
[pid 22688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22688, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22111", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22111/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22111/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22111")                        = 0
mkdir("./22112", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22689
./strace-static-x86_64: Process 22689 attached
[pid 22689] set_robust_list(0x55557a32b660, 24) = 0
[pid 22689] chdir("./22112")            = 0
[pid 22689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22689] setpgid(0, 0)               = 0
[pid 22689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22689] write(3, "1000", 4)         = 4
[pid 22689] close(3)                    = 0
[pid 22689] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22689] write(1, "executing program\n", 18executing program
) = 18
[pid 22689] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22689] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22689] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22689] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22689] exit_group(0)               = ?
[pid 22689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22689, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22112", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22112/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22112/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22112")                        = 0
mkdir("./22113", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22690 attached
 <unfinished ...>
[pid 22690] set_robust_list(0x55557a32b660, 24) = 0
[pid 22690] chdir("./22113" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22690
[pid 22690] <... chdir resumed>)        = 0
[pid 22690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22690] setpgid(0, 0)               = 0
[pid 22690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22690] write(3, "1000", 4)         = 4
[pid 22690] close(3)                    = 0
[pid 22690] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22690] write(1, "executing program\n", 18executing program
) = 18
[pid 22690] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22690] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22690] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22690] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22690] exit_group(0)               = ?
[pid 22690] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22690, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22113", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22113/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22113/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22113")                        = 0
mkdir("./22114", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22691
./strace-static-x86_64: Process 22691 attached
[pid 22691] set_robust_list(0x55557a32b660, 24) = 0
[pid 22691] chdir("./22114")            = 0
[pid 22691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22691] setpgid(0, 0)               = 0
[pid 22691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22691] write(3, "1000", 4)         = 4
[pid 22691] close(3)                    = 0
[pid 22691] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22691] write(1, "executing program\n", 18executing program
) = 18
[pid 22691] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22691] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22691] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22691] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22691] exit_group(0)               = ?
[pid 22691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22691, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22114", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22114/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22114/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22114")                        = 0
mkdir("./22115", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22692
./strace-static-x86_64: Process 22692 attached
[pid 22692] set_robust_list(0x55557a32b660, 24) = 0
[pid 22692] chdir("./22115")            = 0
[pid 22692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22692] setpgid(0, 0)               = 0
[pid 22692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22692] write(3, "1000", 4)         = 4
[pid 22692] close(3)                    = 0
[pid 22692] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22692] write(1, "executing program\n", 18executing program
) = 18
[pid 22692] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22692] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22692] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22692] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22692] exit_group(0)               = ?
[pid 22692] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22692, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22115", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22115/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22115/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22115")                        = 0
mkdir("./22116", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22693
./strace-static-x86_64: Process 22693 attached
[pid 22693] set_robust_list(0x55557a32b660, 24) = 0
[pid 22693] chdir("./22116")            = 0
[pid 22693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22693] setpgid(0, 0)               = 0
[pid 22693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22693] write(3, "1000", 4)         = 4
[pid 22693] close(3)                    = 0
[pid 22693] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22693] write(1, "executing program\n", 18executing program
) = 18
[pid 22693] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22693] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22693] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22693] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22693] exit_group(0)               = ?
[pid 22693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22693, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22116", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22116/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22116/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22116/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22116")                        = 0
mkdir("./22117", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22694
./strace-static-x86_64: Process 22694 attached
[pid 22694] set_robust_list(0x55557a32b660, 24) = 0
[pid 22694] chdir("./22117")            = 0
[pid 22694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22694] setpgid(0, 0)               = 0
[pid 22694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22694] write(3, "1000", 4)         = 4
[pid 22694] close(3)                    = 0
[pid 22694] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22694] write(1, "executing program\n", 18) = 18
[pid 22694] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22694] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22694] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22694] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22694] exit_group(0)               = ?
[pid 22694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22694, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22117", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22117/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22117/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22117")                        = 0
mkdir("./22118", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22695 attached
, child_tidptr=0x55557a32b650) = 22695
[pid 22695] set_robust_list(0x55557a32b660, 24) = 0
[pid 22695] chdir("./22118")            = 0
[pid 22695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22695] setpgid(0, 0)               = 0
[pid 22695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22695] write(3, "1000", 4)         = 4
[pid 22695] close(3)                    = 0
[pid 22695] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22695] write(1, "executing program\n", 18executing program
) = 18
[pid 22695] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22695] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22695] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22695] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22695] exit_group(0)               = ?
[pid 22695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22695, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22118", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22118/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22118/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22118")                        = 0
mkdir("./22119", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22696
./strace-static-x86_64: Process 22696 attached
[pid 22696] set_robust_list(0x55557a32b660, 24) = 0
[pid 22696] chdir("./22119")            = 0
[pid 22696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22696] setpgid(0, 0)               = 0
[pid 22696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22696] write(3, "1000", 4)         = 4
[pid 22696] close(3)                    = 0
[pid 22696] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22696] write(1, "executing program\n", 18) = 18
[pid 22696] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22696] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22696] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22696] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22696] exit_group(0)               = ?
[pid 22696] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22696, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22119", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22119/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22119/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22119")                        = 0
mkdir("./22120", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22697
./strace-static-x86_64: Process 22697 attached
[pid 22697] set_robust_list(0x55557a32b660, 24) = 0
[pid 22697] chdir("./22120")            = 0
[pid 22697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22697] setpgid(0, 0)               = 0
[pid 22697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22697] write(3, "1000", 4)         = 4
[pid 22697] close(3)                    = 0
[pid 22697] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22697] write(1, "executing program\n", 18) = 18
[pid 22697] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22697] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22697] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22697] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22697] exit_group(0)               = ?
[pid 22697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22697, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22120", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22120/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22120/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22120/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22120")                        = 0
mkdir("./22121", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22698
./strace-static-x86_64: Process 22698 attached
[pid 22698] set_robust_list(0x55557a32b660, 24) = 0
[pid 22698] chdir("./22121")            = 0
[pid 22698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22698] setpgid(0, 0)               = 0
[pid 22698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22698] write(3, "1000", 4)         = 4
[pid 22698] close(3)                    = 0
[pid 22698] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22698] write(1, "executing program\n", 18) = 18
[pid 22698] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22698] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22698] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22698] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22698] exit_group(0)               = ?
[pid 22698] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22698, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22121", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22121/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22121/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22121")                        = 0
mkdir("./22122", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22699 attached
, child_tidptr=0x55557a32b650) = 22699
[pid 22699] set_robust_list(0x55557a32b660, 24) = 0
[pid 22699] chdir("./22122")            = 0
[pid 22699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22699] setpgid(0, 0)               = 0
[pid 22699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22699] write(3, "1000", 4)         = 4
[pid 22699] close(3)                    = 0
[pid 22699] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22699] write(1, "executing program\n", 18executing program
) = 18
[pid 22699] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22699] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22699] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22699] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22699] exit_group(0)               = ?
[pid 22699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22699, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22122", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22122/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22122/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22122/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22122")                        = 0
mkdir("./22123", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22700
./strace-static-x86_64: Process 22700 attached
[pid 22700] set_robust_list(0x55557a32b660, 24) = 0
[pid 22700] chdir("./22123")            = 0
[pid 22700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22700] setpgid(0, 0)               = 0
[pid 22700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22700] write(3, "1000", 4)         = 4
[pid 22700] close(3)                    = 0
[pid 22700] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22700] write(1, "executing program\n", 18) = 18
[pid 22700] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22700] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22700] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22700] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22700] exit_group(0)               = ?
[pid 22700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22700, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22123", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22123/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22123/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22123/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22123")                        = 0
mkdir("./22124", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22701
./strace-static-x86_64: Process 22701 attached
[pid 22701] set_robust_list(0x55557a32b660, 24) = 0
[pid 22701] chdir("./22124")            = 0
[pid 22701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22701] setpgid(0, 0)               = 0
[pid 22701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22701] write(3, "1000", 4)         = 4
[pid 22701] close(3)                    = 0
[pid 22701] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22701] write(1, "executing program\n", 18executing program
) = 18
[pid 22701] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22701] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22701] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22701] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22701] exit_group(0)               = ?
[pid 22701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22701, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22124", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22124/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22124/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22124")                        = 0
mkdir("./22125", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22702
./strace-static-x86_64: Process 22702 attached
[pid 22702] set_robust_list(0x55557a32b660, 24) = 0
[pid 22702] chdir("./22125")            = 0
[pid 22702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22702] setpgid(0, 0)               = 0
[pid 22702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22702] write(3, "1000", 4)         = 4
[pid 22702] close(3)                    = 0
[pid 22702] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22702] write(1, "executing program\n", 18) = 18
[pid 22702] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22702] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22702] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22702] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22702] exit_group(0)               = ?
[pid 22702] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22702, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22125", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22125/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22125/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22125/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22125")                        = 0
mkdir("./22126", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22703
./strace-static-x86_64: Process 22703 attached
[pid 22703] set_robust_list(0x55557a32b660, 24) = 0
[pid 22703] chdir("./22126")            = 0
[pid 22703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22703] setpgid(0, 0)               = 0
[pid 22703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22703] write(3, "1000", 4)         = 4
[pid 22703] close(3)                    = 0
[pid 22703] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22703] write(1, "executing program\n", 18executing program
) = 18
[pid 22703] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22703] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22703] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22703] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22703] exit_group(0)               = ?
[pid 22703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22703, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22126", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22126/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22126/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22126")                        = 0
mkdir("./22127", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22704 attached
, child_tidptr=0x55557a32b650) = 22704
[pid 22704] set_robust_list(0x55557a32b660, 24) = 0
[pid 22704] chdir("./22127")            = 0
[pid 22704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22704] setpgid(0, 0)               = 0
[pid 22704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22704] write(3, "1000", 4)         = 4
[pid 22704] close(3)                    = 0
[pid 22704] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22704] write(1, "executing program\n", 18executing program
) = 18
[pid 22704] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22704] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22704] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22704] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22704] exit_group(0)               = ?
[pid 22704] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22704, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22127", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22127/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22127/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22127")                        = 0
mkdir("./22128", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22705 attached
, child_tidptr=0x55557a32b650) = 22705
[pid 22705] set_robust_list(0x55557a32b660, 24) = 0
[pid 22705] chdir("./22128")            = 0
[pid 22705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22705] setpgid(0, 0)               = 0
[pid 22705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22705] write(3, "1000", 4)         = 4
[pid 22705] close(3)                    = 0
[pid 22705] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22705] write(1, "executing program\n", 18executing program
) = 18
[pid 22705] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22705] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22705] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22705] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22705] exit_group(0)               = ?
[pid 22705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22705, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22128", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22128/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22128/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22128/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22128")                        = 0
mkdir("./22129", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22706
./strace-static-x86_64: Process 22706 attached
[pid 22706] set_robust_list(0x55557a32b660, 24) = 0
[pid 22706] chdir("./22129")            = 0
[pid 22706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22706] setpgid(0, 0)               = 0
[pid 22706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22706] write(3, "1000", 4)         = 4
[pid 22706] close(3)                    = 0
[pid 22706] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22706] write(1, "executing program\n", 18executing program
) = 18
[pid 22706] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22706] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22706] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22706] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22706] exit_group(0)               = ?
[pid 22706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22706, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22129", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22129/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22129/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22129")                        = 0
mkdir("./22130", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22707 attached
, child_tidptr=0x55557a32b650) = 22707
[pid 22707] set_robust_list(0x55557a32b660, 24) = 0
[pid 22707] chdir("./22130")            = 0
[pid 22707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22707] setpgid(0, 0)               = 0
[pid 22707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22707] write(3, "1000", 4)         = 4
[pid 22707] close(3)                    = 0
[pid 22707] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22707] write(1, "executing program\n", 18executing program
) = 18
[pid 22707] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22707] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22707] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22707] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22707] exit_group(0)               = ?
[pid 22707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22707, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22130", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22130/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22130/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22130")                        = 0
mkdir("./22131", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22708
./strace-static-x86_64: Process 22708 attached
[pid 22708] set_robust_list(0x55557a32b660, 24) = 0
[pid 22708] chdir("./22131")            = 0
[pid 22708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22708] setpgid(0, 0)               = 0
[pid 22708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22708] write(3, "1000", 4)         = 4
[pid 22708] close(3)                    = 0
[pid 22708] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22708] write(1, "executing program\n", 18executing program
) = 18
[pid 22708] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22708] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22708] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22708] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22708] exit_group(0)               = ?
[pid 22708] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22708, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22131", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22131/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22131/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22131")                        = 0
mkdir("./22132", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22709
./strace-static-x86_64: Process 22709 attached
[pid 22709] set_robust_list(0x55557a32b660, 24) = 0
[pid 22709] chdir("./22132")            = 0
[pid 22709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22709] setpgid(0, 0)               = 0
[pid 22709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22709] write(3, "1000", 4)         = 4
[pid 22709] close(3)                    = 0
[pid 22709] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22709] write(1, "executing program\n", 18executing program
) = 18
[pid 22709] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22709] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22709] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22709] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22709] exit_group(0)               = ?
[pid 22709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22709, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22132", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22132/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22132/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22132")                        = 0
mkdir("./22133", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22710
./strace-static-x86_64: Process 22710 attached
[pid 22710] set_robust_list(0x55557a32b660, 24) = 0
[pid 22710] chdir("./22133")            = 0
[pid 22710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22710] setpgid(0, 0)               = 0
[pid 22710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22710] write(3, "1000", 4)         = 4
[pid 22710] close(3)                    = 0
[pid 22710] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22710] write(1, "executing program\n", 18executing program
) = 18
[pid 22710] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22710] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22710] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22710] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22710] exit_group(0)               = ?
[pid 22710] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22710, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22133", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22133/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22133/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22133")                        = 0
mkdir("./22134", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22711
./strace-static-x86_64: Process 22711 attached
[pid 22711] set_robust_list(0x55557a32b660, 24) = 0
[pid 22711] chdir("./22134")            = 0
[pid 22711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22711] setpgid(0, 0)               = 0
[pid 22711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22711] write(3, "1000", 4)         = 4
[pid 22711] close(3)                    = 0
[pid 22711] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22711] write(1, "executing program\n", 18executing program
) = 18
[pid 22711] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22711] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22711] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22711] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22711] exit_group(0)               = ?
[pid 22711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22711, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22134", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22134/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22134/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22134/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22134")                        = 0
mkdir("./22135", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22712 attached
, child_tidptr=0x55557a32b650) = 22712
[pid 22712] set_robust_list(0x55557a32b660, 24) = 0
[pid 22712] chdir("./22135")            = 0
[pid 22712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22712] setpgid(0, 0)               = 0
[pid 22712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22712] write(3, "1000", 4)         = 4
[pid 22712] close(3)                    = 0
[pid 22712] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22712] write(1, "executing program\n", 18executing program
) = 18
[pid 22712] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22712] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22712] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22712] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22712] exit_group(0)               = ?
[pid 22712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22712, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22135", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22135/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22135/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22135/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22135")                        = 0
mkdir("./22136", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22713
./strace-static-x86_64: Process 22713 attached
[pid 22713] set_robust_list(0x55557a32b660, 24) = 0
[pid 22713] chdir("./22136")            = 0
[pid 22713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22713] setpgid(0, 0)               = 0
[pid 22713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22713] write(3, "1000", 4)         = 4
[pid 22713] close(3)                    = 0
[pid 22713] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22713] write(1, "executing program\n", 18executing program
) = 18
[pid 22713] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22713] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22713] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22713] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22713] exit_group(0)               = ?
[pid 22713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22713, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22136", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22136/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22136/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22136/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22136")                        = 0
mkdir("./22137", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22714
./strace-static-x86_64: Process 22714 attached
[pid 22714] set_robust_list(0x55557a32b660, 24) = 0
[pid 22714] chdir("./22137")            = 0
[pid 22714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22714] setpgid(0, 0)               = 0
[pid 22714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22714] write(3, "1000", 4)         = 4
[pid 22714] close(3)                    = 0
[pid 22714] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22714] write(1, "executing program\n", 18executing program
) = 18
[pid 22714] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22714] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22714] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22714] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22714] exit_group(0)               = ?
[pid 22714] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22714, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22137", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22137/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22137/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22137/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22137")                        = 0
mkdir("./22138", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22715
./strace-static-x86_64: Process 22715 attached
[pid 22715] set_robust_list(0x55557a32b660, 24) = 0
[pid 22715] chdir("./22138")            = 0
[pid 22715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22715] setpgid(0, 0)               = 0
[pid 22715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22715] write(3, "1000", 4)         = 4
[pid 22715] close(3)                    = 0
[pid 22715] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22715] write(1, "executing program\n", 18) = 18
[pid 22715] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22715] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22715] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22715] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22715] exit_group(0)               = ?
[pid 22715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22715, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22138", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22138/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22138/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22138/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22138")                        = 0
mkdir("./22139", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22716
./strace-static-x86_64: Process 22716 attached
[pid 22716] set_robust_list(0x55557a32b660, 24) = 0
[pid 22716] chdir("./22139")            = 0
[pid 22716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22716] setpgid(0, 0)               = 0
[pid 22716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22716] write(3, "1000", 4)         = 4
[pid 22716] close(3)                    = 0
[pid 22716] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22716] write(1, "executing program\n", 18executing program
) = 18
[pid 22716] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22716] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22716] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22716] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22716] exit_group(0)               = ?
[pid 22716] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22716, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22139", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22139/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22139/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22139/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22139")                        = 0
mkdir("./22140", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22717 attached
, child_tidptr=0x55557a32b650) = 22717
[pid 22717] set_robust_list(0x55557a32b660, 24) = 0
[pid 22717] chdir("./22140")            = 0
[pid 22717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22717] setpgid(0, 0)               = 0
[pid 22717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22717] write(3, "1000", 4)         = 4
[pid 22717] close(3)                    = 0
[pid 22717] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22717] write(1, "executing program\n", 18executing program
) = 18
[pid 22717] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22717] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22717] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22717] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22717] exit_group(0)               = ?
[pid 22717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22717, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22140", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22140/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22140/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22140/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22140")                        = 0
mkdir("./22141", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22718
./strace-static-x86_64: Process 22718 attached
[pid 22718] set_robust_list(0x55557a32b660, 24) = 0
[pid 22718] chdir("./22141")            = 0
[pid 22718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22718] setpgid(0, 0)               = 0
[pid 22718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22718] write(3, "1000", 4)         = 4
[pid 22718] close(3)                    = 0
[pid 22718] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22718] write(1, "executing program\n", 18executing program
) = 18
[pid 22718] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22718] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22718] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22718] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22718] exit_group(0)               = ?
[pid 22718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22718, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22141", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22141/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22141/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22141")                        = 0
mkdir("./22142", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22719
./strace-static-x86_64: Process 22719 attached
[pid 22719] set_robust_list(0x55557a32b660, 24) = 0
[pid 22719] chdir("./22142")            = 0
[pid 22719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22719] setpgid(0, 0)               = 0
[pid 22719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22719] write(3, "1000", 4)         = 4
[pid 22719] close(3)                    = 0
[pid 22719] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22719] write(1, "executing program\n", 18executing program
) = 18
[pid 22719] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22719] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22719] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22719] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22719] exit_group(0)               = ?
[pid 22719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22719, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22142", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22142/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22142/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22142/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22142")                        = 0
mkdir("./22143", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22720
./strace-static-x86_64: Process 22720 attached
[pid 22720] set_robust_list(0x55557a32b660, 24) = 0
[pid 22720] chdir("./22143")            = 0
[pid 22720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22720] setpgid(0, 0)               = 0
[pid 22720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22720] write(3, "1000", 4)         = 4
[pid 22720] close(3)                    = 0
[pid 22720] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22720] write(1, "executing program\n", 18executing program
) = 18
[pid 22720] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22720] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22720] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22720] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22720] exit_group(0)               = ?
[pid 22720] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22720, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22143", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22143/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22143/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22143")                        = 0
mkdir("./22144", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22721
./strace-static-x86_64: Process 22721 attached
[pid 22721] set_robust_list(0x55557a32b660, 24) = 0
[pid 22721] chdir("./22144")            = 0
[pid 22721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22721] setpgid(0, 0)               = 0
[pid 22721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22721] write(3, "1000", 4)         = 4
[pid 22721] close(3)                    = 0
[pid 22721] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22721] write(1, "executing program\n", 18executing program
) = 18
[pid 22721] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22721] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22721] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22721] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22721] exit_group(0)               = ?
[pid 22721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22721, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22144", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22144/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22144/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22144/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22144")                        = 0
mkdir("./22145", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22722 attached
, child_tidptr=0x55557a32b650) = 22722
[pid 22722] set_robust_list(0x55557a32b660, 24) = 0
[pid 22722] chdir("./22145")            = 0
[pid 22722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22722] setpgid(0, 0)               = 0
[pid 22722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22722] write(3, "1000", 4)         = 4
[pid 22722] close(3)                    = 0
[pid 22722] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22722] write(1, "executing program\n", 18executing program
) = 18
[pid 22722] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22722] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22722] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22722] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22722] exit_group(0)               = ?
[pid 22722] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22722, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22145", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22145/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22145/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22145/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22145")                        = 0
mkdir("./22146", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22723
./strace-static-x86_64: Process 22723 attached
[pid 22723] set_robust_list(0x55557a32b660, 24) = 0
[pid 22723] chdir("./22146")            = 0
[pid 22723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22723] setpgid(0, 0)               = 0
[pid 22723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22723] write(3, "1000", 4)         = 4
[pid 22723] close(3)                    = 0
[pid 22723] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22723] write(1, "executing program\n", 18executing program
) = 18
[pid 22723] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22723] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22723] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22723] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22723] exit_group(0)               = ?
[pid 22723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22723, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22146", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22146/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22146/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22146/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22146")                        = 0
mkdir("./22147", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22724 attached
, child_tidptr=0x55557a32b650) = 22724
[pid 22724] set_robust_list(0x55557a32b660, 24) = 0
[pid 22724] chdir("./22147")            = 0
[pid 22724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22724] setpgid(0, 0)               = 0
[pid 22724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22724] write(3, "1000", 4)         = 4
[pid 22724] close(3)                    = 0
[pid 22724] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22724] write(1, "executing program\n", 18executing program
) = 18
[pid 22724] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22724] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22724] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22724] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22724] exit_group(0)               = ?
[pid 22724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22724, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22147", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22147/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22147/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22147/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22147")                        = 0
mkdir("./22148", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22725
./strace-static-x86_64: Process 22725 attached
[pid 22725] set_robust_list(0x55557a32b660, 24) = 0
[pid 22725] chdir("./22148")            = 0
[pid 22725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22725] setpgid(0, 0)               = 0
[pid 22725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22725] write(3, "1000", 4)         = 4
[pid 22725] close(3)                    = 0
[pid 22725] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22725] write(1, "executing program\n", 18executing program
) = 18
[pid 22725] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22725] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22725] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22725] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22725] exit_group(0)               = ?
[pid 22725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22725, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22148", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22148/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22148/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22148/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22148")                        = 0
mkdir("./22149", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22726
./strace-static-x86_64: Process 22726 attached
[pid 22726] set_robust_list(0x55557a32b660, 24) = 0
[pid 22726] chdir("./22149")            = 0
[pid 22726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22726] setpgid(0, 0)               = 0
[pid 22726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22726] write(3, "1000", 4)         = 4
[pid 22726] close(3)                    = 0
[pid 22726] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22726] write(1, "executing program\n", 18executing program
) = 18
[pid 22726] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22726] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22726] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22726] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22726] exit_group(0)               = ?
[pid 22726] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22726, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22149", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22149/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22149/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22149/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22149")                        = 0
mkdir("./22150", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22727
./strace-static-x86_64: Process 22727 attached
[pid 22727] set_robust_list(0x55557a32b660, 24) = 0
[pid 22727] chdir("./22150")            = 0
[pid 22727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22727] setpgid(0, 0)               = 0
[pid 22727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22727] write(3, "1000", 4)         = 4
[pid 22727] close(3)                    = 0
[pid 22727] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22727] write(1, "executing program\n", 18executing program
) = 18
[pid 22727] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22727] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22727] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22727] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22727] exit_group(0)               = ?
[pid 22727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22727, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22150", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22150/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22150/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22150/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22150")                        = 0
mkdir("./22151", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22728
./strace-static-x86_64: Process 22728 attached
[pid 22728] set_robust_list(0x55557a32b660, 24) = 0
[pid 22728] chdir("./22151")            = 0
[pid 22728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22728] setpgid(0, 0)               = 0
[pid 22728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22728] write(3, "1000", 4)         = 4
[pid 22728] close(3)                    = 0
[pid 22728] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22728] write(1, "executing program\n", 18executing program
) = 18
[pid 22728] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22728] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22728] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22728] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22728] exit_group(0)               = ?
[pid 22728] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22728, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22151", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22151/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22151/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22151/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22151")                        = 0
mkdir("./22152", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22729
./strace-static-x86_64: Process 22729 attached
[pid 22729] set_robust_list(0x55557a32b660, 24) = 0
[pid 22729] chdir("./22152")            = 0
[pid 22729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22729] setpgid(0, 0)               = 0
[pid 22729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22729] write(3, "1000", 4)         = 4
[pid 22729] close(3)                    = 0
[pid 22729] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22729] write(1, "executing program\n", 18executing program
) = 18
[pid 22729] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22729] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22729] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22729] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22729] exit_group(0)               = ?
[pid 22729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22729, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22152", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22152/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22152/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22152/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22152")                        = 0
mkdir("./22153", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22730
./strace-static-x86_64: Process 22730 attached
[pid 22730] set_robust_list(0x55557a32b660, 24) = 0
[pid 22730] chdir("./22153")            = 0
[pid 22730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22730] setpgid(0, 0)               = 0
[pid 22730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22730] write(3, "1000", 4)         = 4
[pid 22730] close(3)                    = 0
[pid 22730] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22730] write(1, "executing program\n", 18executing program
) = 18
[pid 22730] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22730] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22730] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22730] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22730] exit_group(0)               = ?
[pid 22730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22730, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22153", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22153/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22153/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22153")                        = 0
mkdir("./22154", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22731
./strace-static-x86_64: Process 22731 attached
[pid 22731] set_robust_list(0x55557a32b660, 24) = 0
[pid 22731] chdir("./22154")            = 0
[pid 22731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22731] setpgid(0, 0)               = 0
[pid 22731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22731] write(3, "1000", 4)         = 4
[pid 22731] close(3)                    = 0
[pid 22731] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22731] write(1, "executing program\n", 18executing program
) = 18
[pid 22731] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22731] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22731] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22731] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22731] exit_group(0)               = ?
[pid 22731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22731, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22154", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22154/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22154/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22154/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22154")                        = 0
mkdir("./22155", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22732
./strace-static-x86_64: Process 22732 attached
[pid 22732] set_robust_list(0x55557a32b660, 24) = 0
[pid 22732] chdir("./22155")            = 0
[pid 22732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22732] setpgid(0, 0)               = 0
[pid 22732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22732] write(3, "1000", 4)         = 4
[pid 22732] close(3)                    = 0
[pid 22732] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22732] write(1, "executing program\n", 18executing program
) = 18
[pid 22732] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22732] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22732] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22732] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22732] exit_group(0)               = ?
[pid 22732] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22732, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22155", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22155/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22155/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22155")                        = 0
mkdir("./22156", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22733
./strace-static-x86_64: Process 22733 attached
[pid 22733] set_robust_list(0x55557a32b660, 24) = 0
[pid 22733] chdir("./22156")            = 0
[pid 22733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22733] setpgid(0, 0)               = 0
[pid 22733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22733] write(3, "1000", 4)         = 4
[pid 22733] close(3)                    = 0
[pid 22733] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22733] write(1, "executing program\n", 18executing program
) = 18
[pid 22733] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22733] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22733] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22733] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22733] exit_group(0)               = ?
[pid 22733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22733, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22156", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22156/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22156/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22156")                        = 0
mkdir("./22157", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22734
./strace-static-x86_64: Process 22734 attached
[pid 22734] set_robust_list(0x55557a32b660, 24) = 0
[pid 22734] chdir("./22157")            = 0
[pid 22734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22734] setpgid(0, 0)               = 0
[pid 22734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22734] write(3, "1000", 4)         = 4
[pid 22734] close(3)                    = 0
[pid 22734] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22734] write(1, "executing program\n", 18executing program
) = 18
[pid 22734] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22734] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22734] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22734] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22734] exit_group(0)               = ?
[pid 22734] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22734, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22157", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22157/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22157/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22157")                        = 0
mkdir("./22158", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22735
./strace-static-x86_64: Process 22735 attached
[pid 22735] set_robust_list(0x55557a32b660, 24) = 0
[pid 22735] chdir("./22158")            = 0
[pid 22735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22735] setpgid(0, 0)               = 0
[pid 22735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22735] write(3, "1000", 4)         = 4
[pid 22735] close(3)                    = 0
[pid 22735] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22735] write(1, "executing program\n", 18executing program
) = 18
[pid 22735] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22735] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22735] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22735] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22735] exit_group(0)               = ?
[pid 22735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22735, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22158", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22158/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22158/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22158")                        = 0
mkdir("./22159", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22736
./strace-static-x86_64: Process 22736 attached
[pid 22736] set_robust_list(0x55557a32b660, 24) = 0
[pid 22736] chdir("./22159")            = 0
[pid 22736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22736] setpgid(0, 0)               = 0
[pid 22736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22736] write(3, "1000", 4)         = 4
[pid 22736] close(3)                    = 0
[pid 22736] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22736] write(1, "executing program\n", 18executing program
) = 18
[pid 22736] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22736] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22736] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22736] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22736] exit_group(0)               = ?
[pid 22736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22736, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22159", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22159/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22159/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22159")                        = 0
mkdir("./22160", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22737 attached
, child_tidptr=0x55557a32b650) = 22737
[pid 22737] set_robust_list(0x55557a32b660, 24) = 0
[pid 22737] chdir("./22160")            = 0
[pid 22737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22737] setpgid(0, 0)               = 0
[pid 22737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22737] write(3, "1000", 4)         = 4
[pid 22737] close(3)                    = 0
[pid 22737] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22737] write(1, "executing program\n", 18executing program
) = 18
[pid 22737] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22737] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22737] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22737] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22737] exit_group(0)               = ?
[pid 22737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22737, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22160", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22160/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22160/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22160")                        = 0
mkdir("./22161", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22738
./strace-static-x86_64: Process 22738 attached
[pid 22738] set_robust_list(0x55557a32b660, 24) = 0
[pid 22738] chdir("./22161")            = 0
[pid 22738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22738] setpgid(0, 0)               = 0
[pid 22738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22738] write(3, "1000", 4)         = 4
[pid 22738] close(3)                    = 0
[pid 22738] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22738] write(1, "executing program\n", 18executing program
) = 18
[pid 22738] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22738] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22738] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22738] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22738] exit_group(0)               = ?
[pid 22738] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22738, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22161", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22161/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22161/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22161")                        = 0
mkdir("./22162", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22739
./strace-static-x86_64: Process 22739 attached
[pid 22739] set_robust_list(0x55557a32b660, 24) = 0
[pid 22739] chdir("./22162")            = 0
[pid 22739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22739] setpgid(0, 0)               = 0
[pid 22739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22739] write(3, "1000", 4)         = 4
[pid 22739] close(3)                    = 0
[pid 22739] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22739] write(1, "executing program\n", 18executing program
) = 18
[pid 22739] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22739] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22739] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22739] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22739] exit_group(0)               = ?
[pid 22739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22739, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22162", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22162/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22162/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22162")                        = 0
mkdir("./22163", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22740 attached
, child_tidptr=0x55557a32b650) = 22740
[pid 22740] set_robust_list(0x55557a32b660, 24) = 0
[pid 22740] chdir("./22163")            = 0
[pid 22740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22740] setpgid(0, 0)               = 0
[pid 22740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22740] write(3, "1000", 4)         = 4
[pid 22740] close(3)                    = 0
[pid 22740] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22740] write(1, "executing program\n", 18) = 18
[pid 22740] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22740] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22740] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22740] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22740] exit_group(0)               = ?
[pid 22740] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22740, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22163", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22163/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22163/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22163")                        = 0
mkdir("./22164", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22741
./strace-static-x86_64: Process 22741 attached
[pid 22741] set_robust_list(0x55557a32b660, 24) = 0
[pid 22741] chdir("./22164")            = 0
[pid 22741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22741] setpgid(0, 0)               = 0
[pid 22741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22741] write(3, "1000", 4)         = 4
[pid 22741] close(3)                    = 0
[pid 22741] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22741] write(1, "executing program\n", 18executing program
) = 18
[pid 22741] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22741] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22741] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22741] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22741] exit_group(0)               = ?
[pid 22741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22741, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22164", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22164/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22164/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22164")                        = 0
mkdir("./22165", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22742
./strace-static-x86_64: Process 22742 attached
[pid 22742] set_robust_list(0x55557a32b660, 24) = 0
[pid 22742] chdir("./22165")            = 0
[pid 22742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22742] setpgid(0, 0)               = 0
[pid 22742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22742] write(3, "1000", 4)         = 4
[pid 22742] close(3)                    = 0
[pid 22742] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22742] write(1, "executing program\n", 18executing program
) = 18
[pid 22742] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22742] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22742] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22742] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22742] exit_group(0)               = ?
[pid 22742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22742, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22165", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22165/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22165/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22165/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22165")                        = 0
mkdir("./22166", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22744 attached
, child_tidptr=0x55557a32b650) = 22744
[pid 22744] set_robust_list(0x55557a32b660, 24) = 0
[pid 22744] chdir("./22166")            = 0
[pid 22744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22744] setpgid(0, 0)               = 0
[pid 22744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22744] write(3, "1000", 4)         = 4
[pid 22744] close(3)                    = 0
[pid 22744] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22744] write(1, "executing program\n", 18) = 18
[pid 22744] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7executing program
, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22744] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22744] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22744] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22744] exit_group(0)               = ?
[pid 22744] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22744, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22166", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22166/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22166/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22166")                        = 0
mkdir("./22167", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22745
./strace-static-x86_64: Process 22745 attached
[pid 22745] set_robust_list(0x55557a32b660, 24) = 0
[pid 22745] chdir("./22167")            = 0
[pid 22745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22745] setpgid(0, 0)               = 0
[pid 22745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22745] write(3, "1000", 4)         = 4
[pid 22745] close(3)                    = 0
[pid 22745] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22745] write(1, "executing program\n", 18executing program
) = 18
[pid 22745] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22745] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22745] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22745] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22745] exit_group(0)               = ?
[pid 22745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22745, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22167", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22167/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22167/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22167")                        = 0
mkdir("./22168", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22746
./strace-static-x86_64: Process 22746 attached
[pid 22746] set_robust_list(0x55557a32b660, 24) = 0
[pid 22746] chdir("./22168")            = 0
[pid 22746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22746] setpgid(0, 0)               = 0
[pid 22746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22746] write(3, "1000", 4)         = 4
[pid 22746] close(3)                    = 0
[pid 22746] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22746] write(1, "executing program\n", 18executing program
) = 18
[pid 22746] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22746] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22746] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22746] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22746] exit_group(0)               = ?
[pid 22746] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22746, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22168", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22168/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22168/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22168")                        = 0
mkdir("./22169", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22747
./strace-static-x86_64: Process 22747 attached
[pid 22747] set_robust_list(0x55557a32b660, 24) = 0
[pid 22747] chdir("./22169")            = 0
[pid 22747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22747] setpgid(0, 0)               = 0
[pid 22747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22747] write(3, "1000", 4)         = 4
[pid 22747] close(3)                    = 0
[pid 22747] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22747] write(1, "executing program\n", 18executing program
) = 18
[pid 22747] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22747] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22747] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22747] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22747] exit_group(0)               = ?
[pid 22747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22747, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22169", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22169/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22169/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22169")                        = 0
mkdir("./22170", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22748
./strace-static-x86_64: Process 22748 attached
[pid 22748] set_robust_list(0x55557a32b660, 24) = 0
[pid 22748] chdir("./22170")            = 0
[pid 22748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22748] setpgid(0, 0)               = 0
[pid 22748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22748] write(3, "1000", 4)         = 4
[pid 22748] close(3)                    = 0
[pid 22748] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22748] write(1, "executing program\n", 18) = 18
[pid 22748] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22748] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22748] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22748] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22748] exit_group(0)               = ?
[pid 22748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22748, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22170", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22170/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22170/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22170")                        = 0
mkdir("./22171", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22749 attached
, child_tidptr=0x55557a32b650) = 22749
[pid 22749] set_robust_list(0x55557a32b660, 24) = 0
[pid 22749] chdir("./22171")            = 0
[pid 22749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22749] setpgid(0, 0)               = 0
[pid 22749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22749] write(3, "1000", 4)         = 4
[pid 22749] close(3)                    = 0
[pid 22749] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22749] write(1, "executing program\n", 18) = 18
[pid 22749] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22749] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22749] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22749] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22749] exit_group(0)               = ?
[pid 22749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22749, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22171", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22171/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22171/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22171/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22171")                        = 0
mkdir("./22172", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22750
./strace-static-x86_64: Process 22750 attached
[pid 22750] set_robust_list(0x55557a32b660, 24) = 0
[pid 22750] chdir("./22172")            = 0
[pid 22750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22750] setpgid(0, 0)               = 0
[pid 22750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22750] write(3, "1000", 4)         = 4
[pid 22750] close(3)                    = 0
[pid 22750] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22750] write(1, "executing program\n", 18executing program
) = 18
[pid 22750] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22750] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22750] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22750] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22750] exit_group(0)               = ?
[pid 22750] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22750, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22172", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22172/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22172/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22172")                        = 0
mkdir("./22173", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22751
./strace-static-x86_64: Process 22751 attached
[pid 22751] set_robust_list(0x55557a32b660, 24) = 0
[pid 22751] chdir("./22173")            = 0
[pid 22751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22751] setpgid(0, 0)               = 0
[pid 22751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22751] write(3, "1000", 4)         = 4
[pid 22751] close(3)                    = 0
[pid 22751] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22751] write(1, "executing program\n", 18executing program
) = 18
[pid 22751] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22751] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22751] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22751] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22751] exit_group(0)               = ?
[pid 22751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22751, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22173", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22173/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22173/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22173")                        = 0
mkdir("./22174", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22752 attached
, child_tidptr=0x55557a32b650) = 22752
[pid 22752] set_robust_list(0x55557a32b660, 24) = 0
[pid 22752] chdir("./22174")            = 0
[pid 22752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22752] setpgid(0, 0)               = 0
[pid 22752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22752] write(3, "1000", 4)         = 4
[pid 22752] close(3)                    = 0
[pid 22752] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22752] write(1, "executing program\n", 18executing program
) = 18
[pid 22752] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22752] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22752] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22752] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22752] exit_group(0)               = ?
[pid 22752] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22752, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22174", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22174/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22174/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22174/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22174")                        = 0
mkdir("./22175", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22753
./strace-static-x86_64: Process 22753 attached
[pid 22753] set_robust_list(0x55557a32b660, 24) = 0
[pid 22753] chdir("./22175")            = 0
[pid 22753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22753] setpgid(0, 0)               = 0
[pid 22753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22753] write(3, "1000", 4)         = 4
[pid 22753] close(3)                    = 0
[pid 22753] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22753] write(1, "executing program\n", 18executing program
) = 18
[pid 22753] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22753] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22753] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22753] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22753] exit_group(0)               = ?
[pid 22753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22753, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22175", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22175/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22175/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22175")                        = 0
mkdir("./22176", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22754
./strace-static-x86_64: Process 22754 attached
[pid 22754] set_robust_list(0x55557a32b660, 24) = 0
[pid 22754] chdir("./22176")            = 0
[pid 22754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22754] setpgid(0, 0)               = 0
[pid 22754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22754] write(3, "1000", 4)         = 4
[pid 22754] close(3)                    = 0
[pid 22754] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22754] write(1, "executing program\n", 18executing program
) = 18
[pid 22754] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22754] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22754] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22754] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22754] exit_group(0)               = ?
[pid 22754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22754, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22176", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22176/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22176/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22176")                        = 0
mkdir("./22177", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22755
./strace-static-x86_64: Process 22755 attached
[pid 22755] set_robust_list(0x55557a32b660, 24) = 0
[pid 22755] chdir("./22177")            = 0
[pid 22755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22755] setpgid(0, 0)               = 0
[pid 22755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22755] write(3, "1000", 4)         = 4
[pid 22755] close(3)                    = 0
[pid 22755] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22755] write(1, "executing program\n", 18executing program
) = 18
[pid 22755] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22755] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22755] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22755] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22755] exit_group(0)               = ?
[pid 22755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22755, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22177", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22177/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22177/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22177/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22177")                        = 0
mkdir("./22178", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22756 attached
 <unfinished ...>
[pid 22756] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22756
[pid 22756] chdir("./22178")            = 0
[pid 22756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22756] setpgid(0, 0)               = 0
[pid 22756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22756] write(3, "1000", 4)         = 4
[pid 22756] close(3)                    = 0
[pid 22756] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22756] write(1, "executing program\n", 18executing program
) = 18
[pid 22756] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22756] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22756] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22756] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22756] exit_group(0)               = ?
[pid 22756] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22756, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22178", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22178/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22178/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22178")                        = 0
mkdir("./22179", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22757
./strace-static-x86_64: Process 22757 attached
[pid 22757] set_robust_list(0x55557a32b660, 24) = 0
[pid 22757] chdir("./22179")            = 0
[pid 22757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22757] setpgid(0, 0)               = 0
[pid 22757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22757] write(3, "1000", 4)         = 4
[pid 22757] close(3)                    = 0
[pid 22757] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22757] write(1, "executing program\n", 18) = 18
[pid 22757] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22757] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22757] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22757] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22757] exit_group(0)               = ?
[pid 22757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22757, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22179", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22179/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22179/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22179")                        = 0
mkdir("./22180", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22758 attached
, child_tidptr=0x55557a32b650) = 22758
[pid 22758] set_robust_list(0x55557a32b660, 24) = 0
[pid 22758] chdir("./22180")            = 0
[pid 22758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22758] setpgid(0, 0)               = 0
[pid 22758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22758] write(3, "1000", 4)         = 4
[pid 22758] close(3)                    = 0
[pid 22758] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22758] write(1, "executing program\n", 18executing program
) = 18
[pid 22758] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22758] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22758] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22758] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22758] exit_group(0)               = ?
[pid 22758] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22758, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22180", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22180/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22180/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22180/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22180")                        = 0
mkdir("./22181", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22759 attached
, child_tidptr=0x55557a32b650) = 22759
[pid 22759] set_robust_list(0x55557a32b660, 24) = 0
[pid 22759] chdir("./22181")            = 0
[pid 22759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22759] setpgid(0, 0)               = 0
[pid 22759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22759] write(3, "1000", 4)         = 4
[pid 22759] close(3)                    = 0
[pid 22759] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22759] write(1, "executing program\n", 18executing program
) = 18
[pid 22759] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22759] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22759] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22759] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22759] exit_group(0)               = ?
[pid 22759] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22759, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22181", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22181/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22181/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22181")                        = 0
mkdir("./22182", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22760
./strace-static-x86_64: Process 22760 attached
[pid 22760] set_robust_list(0x55557a32b660, 24) = 0
[pid 22760] chdir("./22182")            = 0
[pid 22760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22760] setpgid(0, 0)               = 0
[pid 22760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22760] write(3, "1000", 4)         = 4
[pid 22760] close(3)                    = 0
[pid 22760] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22760] write(1, "executing program\n", 18executing program
) = 18
[pid 22760] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22760] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22760] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22760] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22760] exit_group(0)               = ?
[pid 22760] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22760, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22182", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22182/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22182/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22182")                        = 0
mkdir("./22183", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22761
./strace-static-x86_64: Process 22761 attached
[pid 22761] set_robust_list(0x55557a32b660, 24) = 0
[pid 22761] chdir("./22183")            = 0
[pid 22761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22761] setpgid(0, 0)               = 0
[pid 22761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22761] write(3, "1000", 4)         = 4
[pid 22761] close(3)                    = 0
[pid 22761] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22761] write(1, "executing program\n", 18executing program
) = 18
[pid 22761] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22761] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22761] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22761] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22761] exit_group(0)               = ?
[pid 22761] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22761, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22183", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22183/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22183/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22183/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22183")                        = 0
mkdir("./22184", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22762 attached
, child_tidptr=0x55557a32b650) = 22762
[pid 22762] set_robust_list(0x55557a32b660, 24) = 0
[pid 22762] chdir("./22184")            = 0
[pid 22762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22762] setpgid(0, 0)               = 0
[pid 22762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22762] write(3, "1000", 4)         = 4
[pid 22762] close(3)                    = 0
[pid 22762] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22762] write(1, "executing program\n", 18executing program
) = 18
[pid 22762] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22762] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22762] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22762] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22762] exit_group(0)               = ?
[pid 22762] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22762, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22184", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22184/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22184/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22184/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22184")                        = 0
mkdir("./22185", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22763
./strace-static-x86_64: Process 22763 attached
[pid 22763] set_robust_list(0x55557a32b660, 24) = 0
[pid 22763] chdir("./22185")            = 0
[pid 22763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22763] setpgid(0, 0)               = 0
[pid 22763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22763] write(3, "1000", 4)         = 4
[pid 22763] close(3)                    = 0
[pid 22763] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22763] write(1, "executing program\n", 18executing program
) = 18
[pid 22763] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22763] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22763] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22763] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22763] exit_group(0)               = ?
[pid 22763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22763, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22185", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22185/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22185/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22185/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22185")                        = 0
mkdir("./22186", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22764
./strace-static-x86_64: Process 22764 attached
[pid 22764] set_robust_list(0x55557a32b660, 24) = 0
[pid 22764] chdir("./22186")            = 0
[pid 22764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22764] setpgid(0, 0)               = 0
[pid 22764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22764] write(3, "1000", 4)         = 4
[pid 22764] close(3)                    = 0
[pid 22764] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22764] write(1, "executing program\n", 18executing program
) = 18
[pid 22764] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22764] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22764] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22764] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22764] exit_group(0)               = ?
[pid 22764] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22764, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22186", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22186/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22186/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22186/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22186")                        = 0
mkdir("./22187", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22765 attached
, child_tidptr=0x55557a32b650) = 22765
[pid 22765] set_robust_list(0x55557a32b660, 24) = 0
[pid 22765] chdir("./22187")            = 0
[pid 22765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22765] setpgid(0, 0)               = 0
[pid 22765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22765] write(3, "1000", 4)         = 4
[pid 22765] close(3)                    = 0
[pid 22765] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22765] write(1, "executing program\n", 18executing program
) = 18
[pid 22765] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22765] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22765] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22765] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22765] exit_group(0)               = ?
[pid 22765] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22765, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22187", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22187/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22187/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22187/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22187")                        = 0
mkdir("./22188", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22766
./strace-static-x86_64: Process 22766 attached
[pid 22766] set_robust_list(0x55557a32b660, 24) = 0
[pid 22766] chdir("./22188")            = 0
[pid 22766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22766] setpgid(0, 0)               = 0
[pid 22766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22766] write(3, "1000", 4)         = 4
[pid 22766] close(3)                    = 0
[pid 22766] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22766] write(1, "executing program\n", 18executing program
) = 18
[pid 22766] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22766] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22766] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22766] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22766] exit_group(0)               = ?
[pid 22766] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22766, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22188", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22188/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22188/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22188")                        = 0
mkdir("./22189", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22767
./strace-static-x86_64: Process 22767 attached
[pid 22767] set_robust_list(0x55557a32b660, 24) = 0
[pid 22767] chdir("./22189")            = 0
[pid 22767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22767] setpgid(0, 0)               = 0
[pid 22767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22767] write(3, "1000", 4)         = 4
[pid 22767] close(3)                    = 0
[pid 22767] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22767] write(1, "executing program\n", 18) = 18
[pid 22767] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7executing program
, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22767] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22767] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22767] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22767] exit_group(0)               = ?
[pid 22767] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22767, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22189", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22189/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22189/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22189/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22189")                        = 0
mkdir("./22190", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22768 attached
, child_tidptr=0x55557a32b650) = 22768
[pid 22768] set_robust_list(0x55557a32b660, 24) = 0
[pid 22768] chdir("./22190")            = 0
[pid 22768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22768] setpgid(0, 0)               = 0
[pid 22768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22768] write(3, "1000", 4)         = 4
[pid 22768] close(3)                    = 0
[pid 22768] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22768] write(1, "executing program\n", 18executing program
) = 18
[pid 22768] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22768] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22768] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22768] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22768] exit_group(0)               = ?
[pid 22768] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22768, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22190", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22190/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22190/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22190/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22190")                        = 0
mkdir("./22191", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22769
./strace-static-x86_64: Process 22769 attached
[pid 22769] set_robust_list(0x55557a32b660, 24) = 0
[pid 22769] chdir("./22191")            = 0
[pid 22769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22769] setpgid(0, 0)               = 0
[pid 22769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22769] write(3, "1000", 4)         = 4
[pid 22769] close(3)                    = 0
[pid 22769] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22769] write(1, "executing program\n", 18executing program
) = 18
[pid 22769] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22769] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22769] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22769] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22769] exit_group(0)               = ?
[pid 22769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22769, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22191", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22191/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22191/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22191/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22191")                        = 0
mkdir("./22192", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22770
./strace-static-x86_64: Process 22770 attached
[pid 22770] set_robust_list(0x55557a32b660, 24) = 0
[pid 22770] chdir("./22192")            = 0
[pid 22770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22770] setpgid(0, 0)               = 0
[pid 22770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22770] write(3, "1000", 4)         = 4
[pid 22770] close(3)                    = 0
[pid 22770] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22770] write(1, "executing program\n", 18executing program
) = 18
[pid 22770] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22770] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22770] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22770] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22770] exit_group(0)               = ?
[pid 22770] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22770, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22192", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22192/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22192/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22192/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22192")                        = 0
mkdir("./22193", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22771 attached
, child_tidptr=0x55557a32b650) = 22771
[pid 22771] set_robust_list(0x55557a32b660, 24) = 0
[pid 22771] chdir("./22193")            = 0
[pid 22771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22771] setpgid(0, 0)               = 0
[pid 22771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22771] write(3, "1000", 4)         = 4
[pid 22771] close(3)                    = 0
[pid 22771] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22771] write(1, "executing program\n", 18executing program
) = 18
[pid 22771] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22771] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22771] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22771] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22771] exit_group(0)               = ?
[pid 22771] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22771, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22193", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22193/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22193/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22193/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22193")                        = 0
mkdir("./22194", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22772
./strace-static-x86_64: Process 22772 attached
[pid 22772] set_robust_list(0x55557a32b660, 24) = 0
[pid 22772] chdir("./22194")            = 0
[pid 22772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22772] setpgid(0, 0)               = 0
[pid 22772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22772] write(3, "1000", 4)         = 4
[pid 22772] close(3)                    = 0
[pid 22772] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22772] write(1, "executing program\n", 18executing program
) = 18
[pid 22772] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22772] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22772] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22772] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22772] exit_group(0)               = ?
[pid 22772] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22772, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22194", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22194/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22194/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22194/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22194")                        = 0
mkdir("./22195", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22773
./strace-static-x86_64: Process 22773 attached
[pid 22773] set_robust_list(0x55557a32b660, 24) = 0
[pid 22773] chdir("./22195")            = 0
[pid 22773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22773] setpgid(0, 0)               = 0
[pid 22773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22773] write(3, "1000", 4)         = 4
[pid 22773] close(3)                    = 0
[pid 22773] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22773] write(1, "executing program\n", 18) = 18
[pid 22773] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22773] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22773] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22773] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22773] exit_group(0)               = ?
[pid 22773] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22773, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22195", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22195/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22195/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22195/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22195")                        = 0
mkdir("./22196", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22774
./strace-static-x86_64: Process 22774 attached
[pid 22774] set_robust_list(0x55557a32b660, 24) = 0
[pid 22774] chdir("./22196")            = 0
[pid 22774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22774] setpgid(0, 0)               = 0
[pid 22774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22774] write(3, "1000", 4)         = 4
[pid 22774] close(3)                    = 0
[pid 22774] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22774] write(1, "executing program\n", 18executing program
) = 18
[pid 22774] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22774] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22774] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22774] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22774] exit_group(0)               = ?
[pid 22774] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22774, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22196", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22196/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22196/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22196/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22196")                        = 0
mkdir("./22197", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22775
./strace-static-x86_64: Process 22775 attached
[pid 22775] set_robust_list(0x55557a32b660, 24) = 0
[pid 22775] chdir("./22197")            = 0
[pid 22775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22775] setpgid(0, 0)               = 0
[pid 22775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22775] write(3, "1000", 4)         = 4
[pid 22775] close(3)                    = 0
[pid 22775] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22775] write(1, "executing program\n", 18executing program
) = 18
[pid 22775] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22775] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22775] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22775] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22775] exit_group(0)               = ?
[pid 22775] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22775, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22197", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22197/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22197/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22197/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22197")                        = 0
mkdir("./22198", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22776
./strace-static-x86_64: Process 22776 attached
[pid 22776] set_robust_list(0x55557a32b660, 24) = 0
[pid 22776] chdir("./22198")            = 0
[pid 22776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22776] setpgid(0, 0)               = 0
[pid 22776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22776] write(3, "1000", 4)         = 4
[pid 22776] close(3)                    = 0
[pid 22776] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22776] write(1, "executing program\n", 18executing program
) = 18
[pid 22776] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22776] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22776] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22776] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22776] exit_group(0)               = ?
[pid 22776] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22776, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22198", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22198/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22198/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22198/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22198")                        = 0
mkdir("./22199", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22777 attached
, child_tidptr=0x55557a32b650) = 22777
[pid 22777] set_robust_list(0x55557a32b660, 24) = 0
[pid 22777] chdir("./22199")            = 0
[pid 22777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22777] setpgid(0, 0)               = 0
[pid 22777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22777] write(3, "1000", 4)         = 4
[pid 22777] close(3)                    = 0
[pid 22777] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22777] write(1, "executing program\n", 18executing program
) = 18
[pid 22777] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22777] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22777] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22777] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22777] exit_group(0)               = ?
[pid 22777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22777, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22199", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22199/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22199/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22199/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22199")                        = 0
mkdir("./22200", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22778 attached
 <unfinished ...>
[pid 22778] set_robust_list(0x55557a32b660, 24) = 0
[pid 22778] chdir("./22200")            = 0
[pid 22778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22778] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22778
[pid 22778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22778] write(3, "1000", 4)         = 4
[pid 22778] close(3)                    = 0
[pid 22778] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22778] write(1, "executing program\n", 18executing program
) = 18
[pid 22778] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22778] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22778] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22778] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22778] exit_group(0)               = ?
[pid 22778] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22778, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22200", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22200/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22200/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22200/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22200")                        = 0
mkdir("./22201", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22779
./strace-static-x86_64: Process 22779 attached
[pid 22779] set_robust_list(0x55557a32b660, 24) = 0
[pid 22779] chdir("./22201")            = 0
[pid 22779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22779] setpgid(0, 0)               = 0
[pid 22779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22779] write(3, "1000", 4)         = 4
[pid 22779] close(3)                    = 0
[pid 22779] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22779] write(1, "executing program\n", 18executing program
) = 18
[pid 22779] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22779] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22779] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22779] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22779] exit_group(0)               = ?
[pid 22779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22779, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22201", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22201/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22201/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22201/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22201")                        = 0
mkdir("./22202", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22780
./strace-static-x86_64: Process 22780 attached
[pid 22780] set_robust_list(0x55557a32b660, 24) = 0
[pid 22780] chdir("./22202")            = 0
[pid 22780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22780] setpgid(0, 0)               = 0
[pid 22780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22780] write(3, "1000", 4)         = 4
[pid 22780] close(3)                    = 0
[pid 22780] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22780] write(1, "executing program\n", 18executing program
) = 18
[pid 22780] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22780] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22780] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22780] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22780] exit_group(0)               = ?
[pid 22780] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22780, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22202", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22202/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22202/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22202/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22202")                        = 0
mkdir("./22203", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22781 attached
, child_tidptr=0x55557a32b650) = 22781
[pid 22781] set_robust_list(0x55557a32b660, 24) = 0
[pid 22781] chdir("./22203")            = 0
[pid 22781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22781] setpgid(0, 0)               = 0
[pid 22781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22781] write(3, "1000", 4)         = 4
[pid 22781] close(3)                    = 0
[pid 22781] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22781] write(1, "executing program\n", 18executing program
) = 18
[pid 22781] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22781] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22781] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22781] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22781] exit_group(0)               = ?
[pid 22781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22781, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22203", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22203/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22203/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22203/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22203")                        = 0
mkdir("./22204", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22782
./strace-static-x86_64: Process 22782 attached
[pid 22782] set_robust_list(0x55557a32b660, 24) = 0
[pid 22782] chdir("./22204")            = 0
[pid 22782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22782] setpgid(0, 0)               = 0
[pid 22782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22782] write(3, "1000", 4)         = 4
[pid 22782] close(3)                    = 0
[pid 22782] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22782] write(1, "executing program\n", 18executing program
) = 18
[pid 22782] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22782] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22782] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22782] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22782] exit_group(0)               = ?
[pid 22782] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22782, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22204", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22204/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22204/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22204/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22204")                        = 0
mkdir("./22205", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22783 attached
, child_tidptr=0x55557a32b650) = 22783
[pid 22783] set_robust_list(0x55557a32b660, 24) = 0
[pid 22783] chdir("./22205")            = 0
[pid 22783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22783] setpgid(0, 0)               = 0
[pid 22783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22783] write(3, "1000", 4)         = 4
[pid 22783] close(3)                    = 0
[pid 22783] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22783] write(1, "executing program\n", 18executing program
) = 18
[pid 22783] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22783] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22783] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22783] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22783] exit_group(0)               = ?
[pid 22783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22783, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22205", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22205/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22205/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22205/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22205")                        = 0
mkdir("./22206", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22784 attached
, child_tidptr=0x55557a32b650) = 22784
[pid 22784] set_robust_list(0x55557a32b660, 24) = 0
[pid 22784] chdir("./22206")            = 0
[pid 22784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22784] setpgid(0, 0)               = 0
[pid 22784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22784] write(3, "1000", 4)         = 4
[pid 22784] close(3)                    = 0
[pid 22784] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22784] write(1, "executing program\n", 18) = 18
[pid 22784] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22784] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22784] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22784] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22784] exit_group(0)               = ?
[pid 22784] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22784, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22206", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22206/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22206/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22206/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22206")                        = 0
mkdir("./22207", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22785
./strace-static-x86_64: Process 22785 attached
[pid 22785] set_robust_list(0x55557a32b660, 24) = 0
[pid 22785] chdir("./22207")            = 0
[pid 22785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22785] setpgid(0, 0)               = 0
[pid 22785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22785] write(3, "1000", 4)         = 4
[pid 22785] close(3)                    = 0
[pid 22785] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22785] write(1, "executing program\n", 18executing program
) = 18
[pid 22785] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22785] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22785] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22785] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22785] exit_group(0)               = ?
[pid 22785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22785, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22207", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22207/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22207/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22207/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22207")                        = 0
mkdir("./22208", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22786
./strace-static-x86_64: Process 22786 attached
[pid 22786] set_robust_list(0x55557a32b660, 24) = 0
[pid 22786] chdir("./22208")            = 0
[pid 22786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22786] setpgid(0, 0)               = 0
[pid 22786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22786] write(3, "1000", 4)         = 4
[pid 22786] close(3)                    = 0
[pid 22786] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22786] write(1, "executing program\n", 18executing program
) = 18
[pid 22786] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22786] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22786] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22786] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22786] exit_group(0)               = ?
[pid 22786] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22786, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22208", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22208/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22208/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22208/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22208")                        = 0
mkdir("./22209", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22787
./strace-static-x86_64: Process 22787 attached
[pid 22787] set_robust_list(0x55557a32b660, 24) = 0
[pid 22787] chdir("./22209")            = 0
[pid 22787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22787] setpgid(0, 0)               = 0
[pid 22787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22787] write(3, "1000", 4)         = 4
[pid 22787] close(3)                    = 0
[pid 22787] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22787] write(1, "executing program\n", 18) = 18
[pid 22787] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22787] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22787] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22787] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22787] exit_group(0)               = ?
[pid 22787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22787, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22209", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22209", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22209/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22209/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22209/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22209")                        = 0
mkdir("./22210", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22788
./strace-static-x86_64: Process 22788 attached
[pid 22788] set_robust_list(0x55557a32b660, 24) = 0
[pid 22788] chdir("./22210")            = 0
[pid 22788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22788] setpgid(0, 0)               = 0
[pid 22788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22788] write(3, "1000", 4)         = 4
[pid 22788] close(3)                    = 0
executing program
[pid 22788] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22788] write(1, "executing program\n", 18) = 18
[pid 22788] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22788] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22788] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22788] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22788] exit_group(0)               = ?
[pid 22788] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22788, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22210", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22210", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22210/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22210/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22210/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22210")                        = 0
mkdir("./22211", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22789
./strace-static-x86_64: Process 22789 attached
[pid 22789] set_robust_list(0x55557a32b660, 24) = 0
[pid 22789] chdir("./22211")            = 0
[pid 22789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22789] setpgid(0, 0)               = 0
[pid 22789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22789] write(3, "1000", 4)         = 4
[pid 22789] close(3)                    = 0
[pid 22789] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22789] write(1, "executing program\n", 18executing program
) = 18
[pid 22789] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22789] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22789] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22789] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22789] exit_group(0)               = ?
[pid 22789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22789, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22211", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22211", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22211/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22211/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22211/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22211")                        = 0
mkdir("./22212", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22790 attached
, child_tidptr=0x55557a32b650) = 22790
[pid 22790] set_robust_list(0x55557a32b660, 24) = 0
[pid 22790] chdir("./22212")            = 0
[pid 22790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22790] setpgid(0, 0)               = 0
[pid 22790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22790] write(3, "1000", 4)         = 4
[pid 22790] close(3)                    = 0
[pid 22790] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22790] write(1, "executing program\n", 18executing program
) = 18
[pid 22790] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22790] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22790] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22790] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22790] exit_group(0)               = ?
[pid 22790] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22790, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22212", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22212", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22212/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22212/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22212/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22212")                        = 0
mkdir("./22213", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22791 attached
, child_tidptr=0x55557a32b650) = 22791
[pid 22791] set_robust_list(0x55557a32b660, 24) = 0
[pid 22791] chdir("./22213")            = 0
[pid 22791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22791] setpgid(0, 0)               = 0
[pid 22791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22791] write(3, "1000", 4)         = 4
[pid 22791] close(3)                    = 0
[pid 22791] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22791] write(1, "executing program\n", 18executing program
) = 18
[pid 22791] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22791] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22791] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22791] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22791] exit_group(0)               = ?
[pid 22791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22791, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22213", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22213", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22213/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22213/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22213/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22213")                        = 0
mkdir("./22214", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22792
./strace-static-x86_64: Process 22792 attached
[pid 22792] set_robust_list(0x55557a32b660, 24) = 0
[pid 22792] chdir("./22214")            = 0
[pid 22792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22792] setpgid(0, 0)               = 0
[pid 22792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22792] write(3, "1000", 4)         = 4
[pid 22792] close(3)                    = 0
[pid 22792] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22792] write(1, "executing program\n", 18executing program
) = 18
[pid 22792] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22792] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22792] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22792] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22792] exit_group(0)               = ?
[pid 22792] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22792, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22214", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22214", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22214/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22214/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22214/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22214")                        = 0
mkdir("./22215", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22793
./strace-static-x86_64: Process 22793 attached
[pid 22793] set_robust_list(0x55557a32b660, 24) = 0
[pid 22793] chdir("./22215")            = 0
[pid 22793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22793] setpgid(0, 0)               = 0
[pid 22793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22793] write(3, "1000", 4)         = 4
[pid 22793] close(3)                    = 0
[pid 22793] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22793] write(1, "executing program\n", 18executing program
) = 18
[pid 22793] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22793] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22793] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22793] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22793] exit_group(0)               = ?
[pid 22793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22793, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22215", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22215", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22215/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22215/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22215/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22215")                        = 0
mkdir("./22216", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22794 attached
, child_tidptr=0x55557a32b650) = 22794
[pid 22794] set_robust_list(0x55557a32b660, 24) = 0
[pid 22794] chdir("./22216")            = 0
[pid 22794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22794] setpgid(0, 0)               = 0
[pid 22794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22794] write(3, "1000", 4)         = 4
[pid 22794] close(3)                    = 0
[pid 22794] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22794] write(1, "executing program\n", 18) = 18
[pid 22794] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22794] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22794] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22794] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22794] exit_group(0)               = ?
[pid 22794] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22794, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22216", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22216/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22216/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22216/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22216")                        = 0
mkdir("./22217", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22795 attached
, child_tidptr=0x55557a32b650) = 22795
[pid 22795] set_robust_list(0x55557a32b660, 24) = 0
[pid 22795] chdir("./22217")            = 0
[pid 22795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22795] setpgid(0, 0)               = 0
[pid 22795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22795] write(3, "1000", 4)         = 4
[pid 22795] close(3)                    = 0
[pid 22795] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22795] write(1, "executing program\n", 18executing program
) = 18
[pid 22795] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22795] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22795] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22795] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22795] exit_group(0)               = ?
[pid 22795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22795, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22217", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22217/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22217/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22217/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22217")                        = 0
mkdir("./22218", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22796
./strace-static-x86_64: Process 22796 attached
[pid 22796] set_robust_list(0x55557a32b660, 24) = 0
[pid 22796] chdir("./22218")            = 0
[pid 22796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22796] setpgid(0, 0)               = 0
[pid 22796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22796] write(3, "1000", 4)         = 4
[pid 22796] close(3)                    = 0
[pid 22796] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22796] write(1, "executing program\n", 18executing program
) = 18
[pid 22796] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22796] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22796] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22796] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22796] exit_group(0)               = ?
[pid 22796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22796, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22218", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22218/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22218/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22218/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22218")                        = 0
mkdir("./22219", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22797
./strace-static-x86_64: Process 22797 attached
[pid 22797] set_robust_list(0x55557a32b660, 24) = 0
[pid 22797] chdir("./22219")            = 0
[pid 22797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22797] setpgid(0, 0)               = 0
[pid 22797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22797] write(3, "1000", 4)         = 4
[pid 22797] close(3)                    = 0
[pid 22797] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22797] write(1, "executing program\n", 18executing program
) = 18
[pid 22797] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22797] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22797] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22797] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22797] exit_group(0)               = ?
[pid 22797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22797, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22219", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22219/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22219/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22219/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22219")                        = 0
mkdir("./22220", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22798
./strace-static-x86_64: Process 22798 attached
[pid 22798] set_robust_list(0x55557a32b660, 24) = 0
[pid 22798] chdir("./22220")            = 0
[pid 22798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22798] setpgid(0, 0)               = 0
[pid 22798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22798] write(3, "1000", 4)         = 4
[pid 22798] close(3)                    = 0
[pid 22798] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22798] write(1, "executing program\n", 18) = 18
[pid 22798] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22798] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22798] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22798] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22798] exit_group(0)               = ?
[pid 22798] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22798, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22220", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22220/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22220/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22220/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22220")                        = 0
mkdir("./22221", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22799 attached
, child_tidptr=0x55557a32b650) = 22799
[pid 22799] set_robust_list(0x55557a32b660, 24) = 0
[pid 22799] chdir("./22221")            = 0
[pid 22799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22799] setpgid(0, 0)               = 0
[pid 22799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22799] write(3, "1000", 4)         = 4
[pid 22799] close(3)                    = 0
[pid 22799] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22799] write(1, "executing program\n", 18executing program
) = 18
[pid 22799] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22799] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22799] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22799] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22799] exit_group(0)               = ?
[pid 22799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22799, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22221", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22221/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22221/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22221")                        = 0
mkdir("./22222", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22800
./strace-static-x86_64: Process 22800 attached
[pid 22800] set_robust_list(0x55557a32b660, 24) = 0
[pid 22800] chdir("./22222")            = 0
[pid 22800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22800] setpgid(0, 0)               = 0
[pid 22800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22800] write(3, "1000", 4)         = 4
[pid 22800] close(3)                    = 0
[pid 22800] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22800] write(1, "executing program\n", 18executing program
) = 18
[pid 22800] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22800] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22800] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22800] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22800] exit_group(0)               = ?
[pid 22800] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22800, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22222", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22222/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22222/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22222")                        = 0
mkdir("./22223", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22801
./strace-static-x86_64: Process 22801 attached
[pid 22801] set_robust_list(0x55557a32b660, 24) = 0
[pid 22801] chdir("./22223")            = 0
[pid 22801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22801] setpgid(0, 0)               = 0
[pid 22801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22801] write(3, "1000", 4)         = 4
[pid 22801] close(3)                    = 0
[pid 22801] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22801] write(1, "executing program\n", 18executing program
) = 18
[pid 22801] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22801] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22801] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22801] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22801] exit_group(0)               = ?
[pid 22801] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22801, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22223", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22223/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22223/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22223/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22223")                        = 0
mkdir("./22224", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22802
./strace-static-x86_64: Process 22802 attached
[pid 22802] set_robust_list(0x55557a32b660, 24) = 0
[pid 22802] chdir("./22224")            = 0
[pid 22802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22802] setpgid(0, 0)               = 0
[pid 22802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22802] write(3, "1000", 4)         = 4
[pid 22802] close(3)                    = 0
[pid 22802] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22802] write(1, "executing program\n", 18) = 18
[pid 22802] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22802] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22802] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22802] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22802] exit_group(0)               = ?
[pid 22802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22802, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22224", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22224/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22224/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22224/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22224")                        = 0
mkdir("./22225", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22803
./strace-static-x86_64: Process 22803 attached
[pid 22803] set_robust_list(0x55557a32b660, 24) = 0
[pid 22803] chdir("./22225")            = 0
[pid 22803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22803] setpgid(0, 0)               = 0
[pid 22803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22803] write(3, "1000", 4)         = 4
[pid 22803] close(3)                    = 0
[pid 22803] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22803] write(1, "executing program\n", 18executing program
) = 18
[pid 22803] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22803] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22803] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22803] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22803] exit_group(0)               = ?
[pid 22803] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22803, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22225", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22225/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22225/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22225")                        = 0
mkdir("./22226", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22804
./strace-static-x86_64: Process 22804 attached
[pid 22804] set_robust_list(0x55557a32b660, 24) = 0
[pid 22804] chdir("./22226")            = 0
[pid 22804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22804] setpgid(0, 0)               = 0
[pid 22804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22804] write(3, "1000", 4)         = 4
[pid 22804] close(3)                    = 0
[pid 22804] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22804] write(1, "executing program\n", 18executing program
) = 18
[pid 22804] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22804] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22804] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22804] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22804] exit_group(0)               = ?
[pid 22804] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22804, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22226", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22226/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22226/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22226/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22226")                        = 0
mkdir("./22227", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22805
./strace-static-x86_64: Process 22805 attached
[pid 22805] set_robust_list(0x55557a32b660, 24) = 0
[pid 22805] chdir("./22227")            = 0
[pid 22805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22805] setpgid(0, 0)               = 0
[pid 22805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22805] write(3, "1000", 4)         = 4
[pid 22805] close(3)                    = 0
[pid 22805] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22805] write(1, "executing program\n", 18executing program
) = 18
[pid 22805] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22805] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22805] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22805] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22805] exit_group(0)               = ?
[pid 22805] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22805, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22227", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22227/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22227/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22227/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22227")                        = 0
mkdir("./22228", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22806
./strace-static-x86_64: Process 22806 attached
[pid 22806] set_robust_list(0x55557a32b660, 24) = 0
[pid 22806] chdir("./22228")            = 0
[pid 22806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22806] setpgid(0, 0)               = 0
[pid 22806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22806] write(3, "1000", 4)         = 4
[pid 22806] close(3)                    = 0
[pid 22806] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22806] write(1, "executing program\n", 18executing program
) = 18
[pid 22806] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22806] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22806] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22806] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22806] exit_group(0)               = ?
[pid 22806] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22806, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22228", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22228/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22228/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22228")                        = 0
mkdir("./22229", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22807
./strace-static-x86_64: Process 22807 attached
[pid 22807] set_robust_list(0x55557a32b660, 24) = 0
[pid 22807] chdir("./22229")            = 0
[pid 22807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22807] setpgid(0, 0)               = 0
[pid 22807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22807] write(3, "1000", 4)         = 4
[pid 22807] close(3)                    = 0
[pid 22807] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22807] write(1, "executing program\n", 18) = 18
[pid 22807] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22807] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22807] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22807] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22807] exit_group(0)               = ?
[pid 22807] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22807, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22229", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22229/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22229/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22229")                        = 0
mkdir("./22230", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22808
./strace-static-x86_64: Process 22808 attached
[pid 22808] set_robust_list(0x55557a32b660, 24) = 0
[pid 22808] chdir("./22230")            = 0
[pid 22808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22808] setpgid(0, 0)               = 0
[pid 22808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22808] write(3, "1000", 4)         = 4
[pid 22808] close(3)                    = 0
[pid 22808] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22808] write(1, "executing program\n", 18executing program
) = 18
[pid 22808] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22808] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22808] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22808] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22808] exit_group(0)               = ?
[pid 22808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22808, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22230", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22230/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22230/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22230")                        = 0
mkdir("./22231", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22809
./strace-static-x86_64: Process 22809 attached
[pid 22809] set_robust_list(0x55557a32b660, 24) = 0
[pid 22809] chdir("./22231")            = 0
[pid 22809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22809] setpgid(0, 0)               = 0
[pid 22809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22809] write(3, "1000", 4)         = 4
[pid 22809] close(3)                    = 0
[pid 22809] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22809] write(1, "executing program\n", 18executing program
) = 18
[pid 22809] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22809] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22809] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22809] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22809] exit_group(0)               = ?
[pid 22809] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22809, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22231", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22231/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22231/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22231")                        = 0
mkdir("./22232", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22810
./strace-static-x86_64: Process 22810 attached
[pid 22810] set_robust_list(0x55557a32b660, 24) = 0
[pid 22810] chdir("./22232")            = 0
[pid 22810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22810] setpgid(0, 0)               = 0
[pid 22810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22810] write(3, "1000", 4)         = 4
[pid 22810] close(3)                    = 0
[pid 22810] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22810] write(1, "executing program\n", 18executing program
) = 18
[pid 22810] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22810] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22810] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22810] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22810] exit_group(0)               = ?
[pid 22810] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22810, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22232", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22232/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22232/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22232/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22232")                        = 0
mkdir("./22233", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22811 attached
, child_tidptr=0x55557a32b650) = 22811
[pid 22811] set_robust_list(0x55557a32b660, 24) = 0
[pid 22811] chdir("./22233")            = 0
[pid 22811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22811] setpgid(0, 0)               = 0
[pid 22811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22811] write(3, "1000", 4)         = 4
[pid 22811] close(3)                    = 0
[pid 22811] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22811] write(1, "executing program\n", 18executing program
) = 18
[pid 22811] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22811] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22811] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22811] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22811] exit_group(0)               = ?
[pid 22811] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22811, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22233", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22233/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22233/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22233")                        = 0
mkdir("./22234", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22812
./strace-static-x86_64: Process 22812 attached
[pid 22812] set_robust_list(0x55557a32b660, 24) = 0
[pid 22812] chdir("./22234")            = 0
[pid 22812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22812] setpgid(0, 0)               = 0
[pid 22812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22812] write(3, "1000", 4)         = 4
[pid 22812] close(3)                    = 0
[pid 22812] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22812] write(1, "executing program\n", 18executing program
) = 18
[pid 22812] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22812] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22812] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22812] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22812] exit_group(0)               = ?
[pid 22812] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22812, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22234", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22234/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22234/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22234")                        = 0
mkdir("./22235", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22813
./strace-static-x86_64: Process 22813 attached
[pid 22813] set_robust_list(0x55557a32b660, 24) = 0
[pid 22813] chdir("./22235")            = 0
[pid 22813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22813] setpgid(0, 0)               = 0
[pid 22813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22813] write(3, "1000", 4)         = 4
[pid 22813] close(3)                    = 0
[pid 22813] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22813] write(1, "executing program\n", 18executing program
) = 18
[pid 22813] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22813] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22813] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22813] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22813] exit_group(0)               = ?
[pid 22813] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22813, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22235", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22235/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22235/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22235")                        = 0
mkdir("./22236", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22814 attached
 <unfinished ...>
[pid 22814] set_robust_list(0x55557a32b660, 24) = 0
[pid 22814] chdir("./22236" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22814
[pid 22814] <... chdir resumed>)        = 0
[pid 22814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22814] setpgid(0, 0)               = 0
[pid 22814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22814] write(3, "1000", 4)         = 4
[pid 22814] close(3)                    = 0
[pid 22814] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22814] write(1, "executing program\n", 18executing program
) = 18
[pid 22814] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22814] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22814] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22814] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22814] exit_group(0)               = ?
[pid 22814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22814, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22236", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22236/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22236/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22236")                        = 0
mkdir("./22237", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22815
./strace-static-x86_64: Process 22815 attached
[pid 22815] set_robust_list(0x55557a32b660, 24) = 0
[pid 22815] chdir("./22237")            = 0
[pid 22815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22815] setpgid(0, 0)               = 0
[pid 22815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22815] write(3, "1000", 4)         = 4
[pid 22815] close(3)                    = 0
[pid 22815] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22815] write(1, "executing program\n", 18executing program
) = 18
[pid 22815] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22815] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22815] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22815] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22815] exit_group(0)               = ?
[pid 22815] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22815, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22237", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22237/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22237/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22237/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22237")                        = 0
mkdir("./22238", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22816 attached
, child_tidptr=0x55557a32b650) = 22816
[pid 22816] set_robust_list(0x55557a32b660, 24) = 0
[pid 22816] chdir("./22238")            = 0
[pid 22816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22816] setpgid(0, 0)               = 0
[pid 22816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22816] write(3, "1000", 4)         = 4
[pid 22816] close(3)                    = 0
[pid 22816] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22816] write(1, "executing program\n", 18executing program
) = 18
[pid 22816] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22816] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22816] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22816] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22816] exit_group(0)               = ?
[pid 22816] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22816, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22238", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22238/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22238/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22238")                        = 0
mkdir("./22239", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22817
./strace-static-x86_64: Process 22817 attached
[pid 22817] set_robust_list(0x55557a32b660, 24) = 0
[pid 22817] chdir("./22239")            = 0
[pid 22817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22817] setpgid(0, 0)               = 0
[pid 22817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22817] write(3, "1000", 4)         = 4
[pid 22817] close(3)                    = 0
[pid 22817] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22817] write(1, "executing program\n", 18executing program
) = 18
[pid 22817] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22817] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22817] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22817] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22817] exit_group(0)               = ?
[pid 22817] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22817, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22239", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22239/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22239/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22239")                        = 0
mkdir("./22240", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22818 attached
, child_tidptr=0x55557a32b650) = 22818
[pid 22818] set_robust_list(0x55557a32b660, 24) = 0
[pid 22818] chdir("./22240")            = 0
[pid 22818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22818] setpgid(0, 0)               = 0
[pid 22818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22818] write(3, "1000", 4)         = 4
[pid 22818] close(3)                    = 0
[pid 22818] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22818] write(1, "executing program\n", 18executing program
) = 18
[pid 22818] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22818] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22818] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22818] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22818] exit_group(0)               = ?
[pid 22818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22818, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22240", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22240/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22240/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22240/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22240")                        = 0
mkdir("./22241", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22819
./strace-static-x86_64: Process 22819 attached
[pid 22819] set_robust_list(0x55557a32b660, 24) = 0
[pid 22819] chdir("./22241")            = 0
[pid 22819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22819] setpgid(0, 0)               = 0
[pid 22819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22819] write(3, "1000", 4)         = 4
[pid 22819] close(3)                    = 0
[pid 22819] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22819] write(1, "executing program\n", 18executing program
) = 18
[pid 22819] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22819] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22819] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22819] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22819] exit_group(0)               = ?
[pid 22819] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22819, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22241", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22241/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22241/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22241/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22241")                        = 0
mkdir("./22242", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22820
./strace-static-x86_64: Process 22820 attached
[pid 22820] set_robust_list(0x55557a32b660, 24) = 0
[pid 22820] chdir("./22242")            = 0
[pid 22820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22820] setpgid(0, 0)               = 0
[pid 22820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22820] write(3, "1000", 4)         = 4
[pid 22820] close(3)                    = 0
[pid 22820] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22820] write(1, "executing program\n", 18executing program
) = 18
[pid 22820] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22820] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22820] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22820] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22820] exit_group(0)               = ?
[pid 22820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22820, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22242", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22242/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22242/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22242/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22242")                        = 0
mkdir("./22243", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22822 attached
 <unfinished ...>
[pid 22822] set_robust_list(0x55557a32b660, 24) = 0
[pid 22822] chdir("./22243" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22822
[pid 22822] <... chdir resumed>)        = 0
[pid 22822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22822] setpgid(0, 0)               = 0
[pid 22822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22822] write(3, "1000", 4)         = 4
[pid 22822] close(3)                    = 0
[pid 22822] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22822] write(1, "executing program\n", 18executing program
) = 18
[pid 22822] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22822] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22822] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22822] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22822] exit_group(0)               = ?
[pid 22822] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22822, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22243", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22243/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22243/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22243")                        = 0
mkdir("./22244", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22823
./strace-static-x86_64: Process 22823 attached
[pid 22823] set_robust_list(0x55557a32b660, 24) = 0
[pid 22823] chdir("./22244")            = 0
[pid 22823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22823] setpgid(0, 0)               = 0
[pid 22823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22823] write(3, "1000", 4)         = 4
[pid 22823] close(3)                    = 0
[pid 22823] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22823] write(1, "executing program\n", 18executing program
) = 18
[pid 22823] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22823] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22823] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22823] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22823] exit_group(0)               = ?
[pid 22823] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22823, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22244", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22244", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22244/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22244/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22244")                        = 0
mkdir("./22245", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22824
./strace-static-x86_64: Process 22824 attached
[pid 22824] set_robust_list(0x55557a32b660, 24) = 0
[pid 22824] chdir("./22245")            = 0
[pid 22824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22824] setpgid(0, 0)               = 0
[pid 22824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22824] write(3, "1000", 4)         = 4
[pid 22824] close(3)                    = 0
[pid 22824] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22824] write(1, "executing program\n", 18executing program
) = 18
[pid 22824] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22824] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22824] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22824] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22824] exit_group(0)               = ?
[pid 22824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22824, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22245", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22245/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22245/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22245/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22245")                        = 0
mkdir("./22246", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22825
./strace-static-x86_64: Process 22825 attached
[pid 22825] set_robust_list(0x55557a32b660, 24) = 0
[pid 22825] chdir("./22246")            = 0
[pid 22825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22825] setpgid(0, 0)               = 0
[pid 22825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22825] write(3, "1000", 4)         = 4
[pid 22825] close(3)                    = 0
[pid 22825] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22825] write(1, "executing program\n", 18executing program
) = 18
[pid 22825] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22825] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22825] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22825] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22825] exit_group(0)               = ?
[pid 22825] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22825, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22246", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22246", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22246/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22246/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22246/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22246")                        = 0
mkdir("./22247", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22826 attached
, child_tidptr=0x55557a32b650) = 22826
[pid 22826] set_robust_list(0x55557a32b660, 24) = 0
[pid 22826] chdir("./22247")            = 0
[pid 22826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22826] setpgid(0, 0)               = 0
[pid 22826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22826] write(3, "1000", 4)         = 4
[pid 22826] close(3)                    = 0
[pid 22826] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22826] write(1, "executing program\n", 18) = 18
[pid 22826] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22826] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22826] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22826] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22826] exit_group(0)               = ?
[pid 22826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22826, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22247", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22247", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22247/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22247/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22247")                        = 0
mkdir("./22248", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22827 attached
, child_tidptr=0x55557a32b650) = 22827
[pid 22827] set_robust_list(0x55557a32b660, 24) = 0
[pid 22827] chdir("./22248")            = 0
[pid 22827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22827] setpgid(0, 0)               = 0
[pid 22827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22827] write(3, "1000", 4)         = 4
[pid 22827] close(3)                    = 0
[pid 22827] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22827] write(1, "executing program\n", 18) = 18
[pid 22827] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22827] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22827] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22827] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22827] exit_group(0)               = ?
[pid 22827] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22827, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22248", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22248", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22248/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22248/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22248")                        = 0
mkdir("./22249", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22828
./strace-static-x86_64: Process 22828 attached
[pid 22828] set_robust_list(0x55557a32b660, 24) = 0
[pid 22828] chdir("./22249")            = 0
[pid 22828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22828] setpgid(0, 0)               = 0
[pid 22828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22828] write(3, "1000", 4)         = 4
[pid 22828] close(3)                    = 0
[pid 22828] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22828] write(1, "executing program\n", 18) = 18
[pid 22828] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22828] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22828] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22828] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22828] exit_group(0)               = ?
[pid 22828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22828, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22249", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22249/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22249/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22249/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22249")                        = 0
mkdir("./22250", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22829 attached
, child_tidptr=0x55557a32b650) = 22829
[pid 22829] set_robust_list(0x55557a32b660, 24) = 0
[pid 22829] chdir("./22250")            = 0
[pid 22829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22829] setpgid(0, 0)               = 0
[pid 22829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22829] write(3, "1000", 4)         = 4
[pid 22829] close(3)                    = 0
[pid 22829] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22829] write(1, "executing program\n", 18executing program
) = 18
[pid 22829] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22829] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22829] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22829] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22829] exit_group(0)               = ?
[pid 22829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22829, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22250", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22250/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22250/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22250")                        = 0
mkdir("./22251", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22830
./strace-static-x86_64: Process 22830 attached
[pid 22830] set_robust_list(0x55557a32b660, 24) = 0
[pid 22830] chdir("./22251")            = 0
[pid 22830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22830] setpgid(0, 0)               = 0
[pid 22830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22830] write(3, "1000", 4)         = 4
[pid 22830] close(3)                    = 0
[pid 22830] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22830] write(1, "executing program\n", 18executing program
) = 18
[pid 22830] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22830] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22830] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22830] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22830] exit_group(0)               = ?
[pid 22830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22830, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22251", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22251/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22251/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22251")                        = 0
mkdir("./22252", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22831 attached
, child_tidptr=0x55557a32b650) = 22831
[pid 22831] set_robust_list(0x55557a32b660, 24) = 0
[pid 22831] chdir("./22252")            = 0
[pid 22831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22831] setpgid(0, 0)               = 0
[pid 22831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22831] write(3, "1000", 4)         = 4
[pid 22831] close(3)                    = 0
[pid 22831] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22831] write(1, "executing program\n", 18executing program
) = 18
[pid 22831] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22831] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22831] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22831] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22831] exit_group(0)               = ?
[pid 22831] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22831, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22252", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22252", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22252/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22252/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22252")                        = 0
mkdir("./22253", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22832 attached
 <unfinished ...>
[pid 22832] set_robust_list(0x55557a32b660, 24) = 0
[pid 22832] chdir("./22253")            = 0
[pid 22832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22832] setpgid(0, 0)               = 0
[pid 22832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22832
[pid 22832] <... openat resumed>)       = 3
[pid 22832] write(3, "1000", 4)         = 4
[pid 22832] close(3)                    = 0
[pid 22832] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22832] write(1, "executing program\n", 18executing program
) = 18
[pid 22832] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22832] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22832] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22832] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22832] exit_group(0)               = ?
[pid 22832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22832, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22253", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22253/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22253/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22253/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22253")                        = 0
mkdir("./22254", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22833 attached
, child_tidptr=0x55557a32b650) = 22833
[pid 22833] set_robust_list(0x55557a32b660, 24) = 0
[pid 22833] chdir("./22254")            = 0
[pid 22833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22833] setpgid(0, 0)               = 0
[pid 22833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22833] write(3, "1000", 4)         = 4
[pid 22833] close(3)                    = 0
[pid 22833] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22833] write(1, "executing program\n", 18executing program
) = 18
[pid 22833] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22833] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22833] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22833] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22833] exit_group(0)               = ?
[pid 22833] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22833, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22254", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22254", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22254/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22254/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22254")                        = 0
mkdir("./22255", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22834
./strace-static-x86_64: Process 22834 attached
[pid 22834] set_robust_list(0x55557a32b660, 24) = 0
[pid 22834] chdir("./22255")            = 0
[pid 22834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22834] setpgid(0, 0)               = 0
[pid 22834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22834] write(3, "1000", 4)         = 4
[pid 22834] close(3)                    = 0
[pid 22834] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22834] write(1, "executing program\n", 18executing program
) = 18
[pid 22834] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22834] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22834] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22834] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22834] exit_group(0)               = ?
[pid 22834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22834, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22255", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22255/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22255/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22255/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22255")                        = 0
mkdir("./22256", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22835
./strace-static-x86_64: Process 22835 attached
[pid 22835] set_robust_list(0x55557a32b660, 24) = 0
[pid 22835] chdir("./22256")            = 0
[pid 22835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22835] setpgid(0, 0)               = 0
[pid 22835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22835] write(3, "1000", 4)         = 4
[pid 22835] close(3)                    = 0
[pid 22835] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22835] write(1, "executing program\n", 18executing program
) = 18
[pid 22835] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22835] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22835] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22835] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22835] exit_group(0)               = ?
[pid 22835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22835, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22256", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22256", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22256/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22256/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22256")                        = 0
mkdir("./22257", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22836 attached
, child_tidptr=0x55557a32b650) = 22836
[pid 22836] set_robust_list(0x55557a32b660, 24) = 0
[pid 22836] chdir("./22257")            = 0
[pid 22836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22836] setpgid(0, 0)               = 0
[pid 22836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22836] write(3, "1000", 4)         = 4
[pid 22836] close(3)                    = 0
[pid 22836] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22836] write(1, "executing program\n", 18executing program
) = 18
[pid 22836] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22836] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22836] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22836] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22836] exit_group(0)               = ?
[pid 22836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22836, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22257", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22257", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22257/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22257/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22257")                        = 0
mkdir("./22258", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22837
./strace-static-x86_64: Process 22837 attached
[pid 22837] set_robust_list(0x55557a32b660, 24) = 0
[pid 22837] chdir("./22258")            = 0
[pid 22837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22837] setpgid(0, 0)               = 0
[pid 22837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22837] write(3, "1000", 4)         = 4
[pid 22837] close(3)                    = 0
[pid 22837] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22837] write(1, "executing program\n", 18executing program
) = 18
[pid 22837] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22837] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22837] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22837] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22837] exit_group(0)               = ?
[pid 22837] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22837, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22258", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22258/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22258/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22258/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22258")                        = 0
mkdir("./22259", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22838
./strace-static-x86_64: Process 22838 attached
[pid 22838] set_robust_list(0x55557a32b660, 24) = 0
[pid 22838] chdir("./22259")            = 0
[pid 22838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22838] setpgid(0, 0)               = 0
[pid 22838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22838] write(3, "1000", 4)         = 4
[pid 22838] close(3)                    = 0
[pid 22838] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22838] write(1, "executing program\n", 18) = 18
[pid 22838] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22838] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22838] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22838] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22838] exit_group(0)               = ?
[pid 22838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22838, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22259", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22259", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22259/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22259/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22259/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22259")                        = 0
mkdir("./22260", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22839 attached
, child_tidptr=0x55557a32b650) = 22839
[pid 22839] set_robust_list(0x55557a32b660, 24) = 0
[pid 22839] chdir("./22260")            = 0
[pid 22839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22839] setpgid(0, 0)               = 0
[pid 22839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22839] write(3, "1000", 4)         = 4
[pid 22839] close(3)                    = 0
[pid 22839] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22839] write(1, "executing program\n", 18executing program
) = 18
[pid 22839] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22839] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22839] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22839] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22839] exit_group(0)               = ?
[pid 22839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22839, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22260", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22260", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22260/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22260/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22260/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22260")                        = 0
mkdir("./22261", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22840
./strace-static-x86_64: Process 22840 attached
[pid 22840] set_robust_list(0x55557a32b660, 24) = 0
[pid 22840] chdir("./22261")            = 0
[pid 22840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22840] setpgid(0, 0)               = 0
[pid 22840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22840] write(3, "1000", 4)         = 4
[pid 22840] close(3)                    = 0
[pid 22840] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22840] write(1, "executing program\n", 18executing program
) = 18
[pid 22840] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22840] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22840] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22840] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22840] exit_group(0)               = ?
[pid 22840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22840, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22261", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22261", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22261/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22261/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22261/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22261")                        = 0
mkdir("./22262", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22841
./strace-static-x86_64: Process 22841 attached
[pid 22841] set_robust_list(0x55557a32b660, 24) = 0
[pid 22841] chdir("./22262")            = 0
[pid 22841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22841] setpgid(0, 0)               = 0
[pid 22841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22841] write(3, "1000", 4)         = 4
[pid 22841] close(3)                    = 0
[pid 22841] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22841] write(1, "executing program\n", 18executing program
) = 18
[pid 22841] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22841] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22841] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22841] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22841] exit_group(0)               = ?
[pid 22841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22841, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22262", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22262", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22262/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22262/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22262/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22262")                        = 0
mkdir("./22263", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22842
./strace-static-x86_64: Process 22842 attached
[pid 22842] set_robust_list(0x55557a32b660, 24) = 0
[pid 22842] chdir("./22263")            = 0
[pid 22842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22842] setpgid(0, 0)               = 0
[pid 22842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22842] write(3, "1000", 4)         = 4
[pid 22842] close(3)                    = 0
[pid 22842] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22842] write(1, "executing program\n", 18executing program
) = 18
[pid 22842] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22842] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22842] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22842] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22842] exit_group(0)               = ?
[pid 22842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22842, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22263", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22263", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22263/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22263/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22263/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22263")                        = 0
mkdir("./22264", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22843
./strace-static-x86_64: Process 22843 attached
[pid 22843] set_robust_list(0x55557a32b660, 24) = 0
[pid 22843] chdir("./22264")            = 0
[pid 22843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22843] setpgid(0, 0)               = 0
[pid 22843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22843] write(3, "1000", 4)         = 4
[pid 22843] close(3)                    = 0
[pid 22843] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22843] write(1, "executing program\n", 18executing program
) = 18
[pid 22843] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22843] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22843] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22843] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22843] exit_group(0)               = ?
[pid 22843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22843, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22264", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22264/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22264/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22264/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22264")                        = 0
mkdir("./22265", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22844 attached
, child_tidptr=0x55557a32b650) = 22844
[pid 22844] set_robust_list(0x55557a32b660, 24) = 0
[pid 22844] chdir("./22265")            = 0
[pid 22844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22844] setpgid(0, 0)               = 0
[pid 22844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22844] write(3, "1000", 4)         = 4
[pid 22844] close(3)                    = 0
[pid 22844] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22844] write(1, "executing program\n", 18executing program
) = 18
[pid 22844] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22844] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22844] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22844] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22844] exit_group(0)               = ?
[pid 22844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22844, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22265", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22265/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22265/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22265/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22265")                        = 0
mkdir("./22266", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22845 attached
, child_tidptr=0x55557a32b650) = 22845
[pid 22845] set_robust_list(0x55557a32b660, 24) = 0
[pid 22845] chdir("./22266")            = 0
[pid 22845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22845] setpgid(0, 0)               = 0
[pid 22845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22845] write(3, "1000", 4)         = 4
[pid 22845] close(3)                    = 0
[pid 22845] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22845] write(1, "executing program\n", 18executing program
) = 18
[pid 22845] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22845] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22845] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22845] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22845] exit_group(0)               = ?
[pid 22845] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22845, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22266", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22266/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22266/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22266/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22266")                        = 0
mkdir("./22267", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22846
./strace-static-x86_64: Process 22846 attached
[pid 22846] set_robust_list(0x55557a32b660, 24) = 0
[pid 22846] chdir("./22267")            = 0
[pid 22846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22846] setpgid(0, 0)               = 0
[pid 22846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22846] write(3, "1000", 4)         = 4
[pid 22846] close(3)                    = 0
[pid 22846] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22846] write(1, "executing program\n", 18executing program
) = 18
[pid 22846] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22846] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22846] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22846] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22846] exit_group(0)               = ?
[pid 22846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22846, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22267", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22267/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22267/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22267/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22267")                        = 0
mkdir("./22268", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22847 attached
, child_tidptr=0x55557a32b650) = 22847
[pid 22847] set_robust_list(0x55557a32b660, 24) = 0
[pid 22847] chdir("./22268")            = 0
[pid 22847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22847] setpgid(0, 0)               = 0
[pid 22847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22847] write(3, "1000", 4)         = 4
[pid 22847] close(3)                    = 0
[pid 22847] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22847] write(1, "executing program\n", 18) = 18
[pid 22847] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22847] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22847] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22847] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22847] exit_group(0)               = ?
[pid 22847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22847, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22268", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22268", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22268/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22268/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22268/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22268")                        = 0
mkdir("./22269", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22848 attached
, child_tidptr=0x55557a32b650) = 22848
[pid 22848] set_robust_list(0x55557a32b660, 24) = 0
[pid 22848] chdir("./22269")            = 0
[pid 22848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22848] setpgid(0, 0)               = 0
[pid 22848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22848] write(3, "1000", 4)         = 4
[pid 22848] close(3)                    = 0
[pid 22848] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22848] write(1, "executing program\n", 18executing program
) = 18
[pid 22848] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22848] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22848] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22848] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22848] exit_group(0)               = ?
[pid 22848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22848, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22269", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22269", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22269/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22269/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22269")                        = 0
mkdir("./22270", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22849
./strace-static-x86_64: Process 22849 attached
[pid 22849] set_robust_list(0x55557a32b660, 24) = 0
[pid 22849] chdir("./22270")            = 0
[pid 22849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22849] setpgid(0, 0)               = 0
[pid 22849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22849] write(3, "1000", 4)         = 4
[pid 22849] close(3)                    = 0
[pid 22849] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22849] write(1, "executing program\n", 18executing program
) = 18
[pid 22849] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22849] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22849] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22849] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22849] exit_group(0)               = ?
[pid 22849] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22849, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22270", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22270", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22270/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22270/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22270/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22270")                        = 0
mkdir("./22271", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22850 attached
, child_tidptr=0x55557a32b650) = 22850
[pid 22850] set_robust_list(0x55557a32b660, 24) = 0
[pid 22850] chdir("./22271")            = 0
[pid 22850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22850] setpgid(0, 0)               = 0
[pid 22850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22850] write(3, "1000", 4)         = 4
[pid 22850] close(3)                    = 0
[pid 22850] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22850] write(1, "executing program\n", 18executing program
) = 18
[pid 22850] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22850] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22850] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22850] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22850] exit_group(0)               = ?
[pid 22850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22850, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22271", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22271", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22271/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22271/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22271/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22271")                        = 0
mkdir("./22272", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22851
./strace-static-x86_64: Process 22851 attached
[pid 22851] set_robust_list(0x55557a32b660, 24) = 0
[pid 22851] chdir("./22272")            = 0
[pid 22851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22851] setpgid(0, 0)               = 0
[pid 22851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22851] write(3, "1000", 4)         = 4
[pid 22851] close(3)                    = 0
executing program
[pid 22851] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22851] write(1, "executing program\n", 18) = 18
[pid 22851] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22851] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22851] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22851] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22851] exit_group(0)               = ?
[pid 22851] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22851, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22272", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22272", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22272/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22272/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22272/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22272")                        = 0
mkdir("./22273", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22852
./strace-static-x86_64: Process 22852 attached
[pid 22852] set_robust_list(0x55557a32b660, 24) = 0
[pid 22852] chdir("./22273")            = 0
[pid 22852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22852] setpgid(0, 0)               = 0
[pid 22852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22852] write(3, "1000", 4)         = 4
[pid 22852] close(3)                    = 0
[pid 22852] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22852] write(1, "executing program\n", 18) = 18
[pid 22852] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22852] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22852] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22852] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22852] exit_group(0)               = ?
[pid 22852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22852, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22273", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22273", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22273/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22273/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22273/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22273")                        = 0
mkdir("./22274", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22853 attached
, child_tidptr=0x55557a32b650) = 22853
[pid 22853] set_robust_list(0x55557a32b660, 24) = 0
[pid 22853] chdir("./22274")            = 0
[pid 22853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22853] setpgid(0, 0)               = 0
[pid 22853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22853] write(3, "1000", 4)         = 4
[pid 22853] close(3)                    = 0
[pid 22853] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22853] write(1, "executing program\n", 18executing program
) = 18
[pid 22853] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22853] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22853] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22853] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22853] exit_group(0)               = ?
[pid 22853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22853, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22274", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22274/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22274/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22274/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22274")                        = 0
mkdir("./22275", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22854 attached
, child_tidptr=0x55557a32b650) = 22854
[pid 22854] set_robust_list(0x55557a32b660, 24) = 0
[pid 22854] chdir("./22275")            = 0
[pid 22854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22854] setpgid(0, 0)               = 0
[pid 22854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22854] write(3, "1000", 4)         = 4
[pid 22854] close(3)                    = 0
[pid 22854] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22854] write(1, "executing program\n", 18executing program
) = 18
[pid 22854] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22854] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22854] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22854] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22854] exit_group(0)               = ?
[pid 22854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22854, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22275", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22275/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22275/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22275/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22275")                        = 0
mkdir("./22276", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22855
./strace-static-x86_64: Process 22855 attached
[pid 22855] set_robust_list(0x55557a32b660, 24) = 0
[pid 22855] chdir("./22276")            = 0
[pid 22855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22855] setpgid(0, 0)               = 0
[pid 22855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22855] write(3, "1000", 4)         = 4
[pid 22855] close(3)                    = 0
[pid 22855] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22855] write(1, "executing program\n", 18executing program
) = 18
[pid 22855] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22855] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22855] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22855] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22855] exit_group(0)               = ?
[pid 22855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22855, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22276", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22276", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22276/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22276/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22276/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22276")                        = 0
mkdir("./22277", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22856
./strace-static-x86_64: Process 22856 attached
[pid 22856] set_robust_list(0x55557a32b660, 24) = 0
[pid 22856] chdir("./22277")            = 0
[pid 22856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22856] setpgid(0, 0)               = 0
[pid 22856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22856] write(3, "1000", 4)         = 4
[pid 22856] close(3)                    = 0
[pid 22856] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22856] write(1, "executing program\n", 18executing program
) = 18
[pid 22856] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22856] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22856] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22856] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22856] exit_group(0)               = ?
[pid 22856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22856, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22277", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22277", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22277/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22277/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22277/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22277")                        = 0
mkdir("./22278", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22857 attached
, child_tidptr=0x55557a32b650) = 22857
[pid 22857] set_robust_list(0x55557a32b660, 24) = 0
[pid 22857] chdir("./22278")            = 0
[pid 22857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22857] setpgid(0, 0)               = 0
[pid 22857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22857] write(3, "1000", 4)         = 4
[pid 22857] close(3)                    = 0
[pid 22857] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22857] write(1, "executing program\n", 18executing program
) = 18
[pid 22857] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22857] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22857] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22857] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22857] exit_group(0)               = ?
[pid 22857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22857, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22278", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22278", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22278/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22278/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22278/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22278")                        = 0
mkdir("./22279", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22858
./strace-static-x86_64: Process 22858 attached
[pid 22858] set_robust_list(0x55557a32b660, 24) = 0
[pid 22858] chdir("./22279")            = 0
[pid 22858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22858] setpgid(0, 0)               = 0
[pid 22858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22858] write(3, "1000", 4)         = 4
[pid 22858] close(3)                    = 0
[pid 22858] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22858] write(1, "executing program\n", 18) = 18
[pid 22858] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22858] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22858] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22858] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22858] exit_group(0)               = ?
[pid 22858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22858, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22279", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22279", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22279/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22279/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22279/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22279")                        = 0
mkdir("./22280", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22859
./strace-static-x86_64: Process 22859 attached
[pid 22859] set_robust_list(0x55557a32b660, 24) = 0
[pid 22859] chdir("./22280")            = 0
[pid 22859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22859] setpgid(0, 0)               = 0
[pid 22859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22859] write(3, "1000", 4)         = 4
[pid 22859] close(3)                    = 0
[pid 22859] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22859] write(1, "executing program\n", 18executing program
) = 18
[pid 22859] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22859] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22859] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22859] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22859] exit_group(0)               = ?
[pid 22859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22859, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22280", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22280", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22280/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22280/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22280/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22280")                        = 0
mkdir("./22281", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22860
./strace-static-x86_64: Process 22860 attached
[pid 22860] set_robust_list(0x55557a32b660, 24) = 0
[pid 22860] chdir("./22281")            = 0
[pid 22860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22860] setpgid(0, 0)               = 0
[pid 22860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22860] write(3, "1000", 4)         = 4
[pid 22860] close(3)                    = 0
[pid 22860] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22860] write(1, "executing program\n", 18executing program
) = 18
[pid 22860] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22860] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22860] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22860] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22860] exit_group(0)               = ?
[pid 22860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22860, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22281", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22281", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22281/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22281/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22281/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22281")                        = 0
mkdir("./22282", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22861
./strace-static-x86_64: Process 22861 attached
[pid 22861] set_robust_list(0x55557a32b660, 24) = 0
[pid 22861] chdir("./22282")            = 0
[pid 22861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22861] setpgid(0, 0)               = 0
[pid 22861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22861] write(3, "1000", 4)         = 4
[pid 22861] close(3)                    = 0
[pid 22861] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22861] write(1, "executing program\n", 18) = 18
[pid 22861] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22861] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22861] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22861] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22861] exit_group(0)               = ?
[pid 22861] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22861, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22282", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22282", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22282/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22282/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22282/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22282")                        = 0
mkdir("./22283", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22862
./strace-static-x86_64: Process 22862 attached
[pid 22862] set_robust_list(0x55557a32b660, 24) = 0
[pid 22862] chdir("./22283")            = 0
[pid 22862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22862] setpgid(0, 0)               = 0
[pid 22862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22862] write(3, "1000", 4)         = 4
[pid 22862] close(3)                    = 0
[pid 22862] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22862] write(1, "executing program\n", 18executing program
) = 18
[pid 22862] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22862] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22862] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22862] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22862] exit_group(0)               = ?
[pid 22862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22862, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22283", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22283", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22283/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22283/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22283/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22283")                        = 0
mkdir("./22284", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22863
./strace-static-x86_64: Process 22863 attached
[pid 22863] set_robust_list(0x55557a32b660, 24) = 0
[pid 22863] chdir("./22284")            = 0
[pid 22863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22863] setpgid(0, 0)               = 0
[pid 22863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22863] write(3, "1000", 4)         = 4
[pid 22863] close(3)                    = 0
[pid 22863] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22863] write(1, "executing program\n", 18executing program
) = 18
[pid 22863] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22863] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22863] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22863] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22863] exit_group(0)               = ?
[pid 22863] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22863, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22284", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22284", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22284/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22284/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22284/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22284")                        = 0
mkdir("./22285", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22864 attached
, child_tidptr=0x55557a32b650) = 22864
[pid 22864] set_robust_list(0x55557a32b660, 24) = 0
[pid 22864] chdir("./22285")            = 0
[pid 22864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22864] setpgid(0, 0)               = 0
[pid 22864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22864] write(3, "1000", 4)         = 4
[pid 22864] close(3)                    = 0
[pid 22864] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22864] write(1, "executing program\n", 18) = 18
[pid 22864] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22864] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22864] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22864] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22864] exit_group(0)               = ?
[pid 22864] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22864, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22285", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22285", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22285/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22285/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22285/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22285")                        = 0
mkdir("./22286", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22865 attached
, child_tidptr=0x55557a32b650) = 22865
[pid 22865] set_robust_list(0x55557a32b660, 24) = 0
[pid 22865] chdir("./22286")            = 0
[pid 22865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22865] setpgid(0, 0)               = 0
[pid 22865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22865] write(3, "1000", 4)         = 4
[pid 22865] close(3)                    = 0
[pid 22865] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22865] write(1, "executing program\n", 18executing program
) = 18
[pid 22865] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22865] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22865] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22865] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22865] exit_group(0)               = ?
[pid 22865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22865, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22286", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22286", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22286/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22286/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22286/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22286")                        = 0
mkdir("./22287", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22866
./strace-static-x86_64: Process 22866 attached
[pid 22866] set_robust_list(0x55557a32b660, 24) = 0
[pid 22866] chdir("./22287")            = 0
[pid 22866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22866] setpgid(0, 0)               = 0
[pid 22866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22866] write(3, "1000", 4)         = 4
[pid 22866] close(3)                    = 0
[pid 22866] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22866] write(1, "executing program\n", 18executing program
) = 18
[pid 22866] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22866] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22866] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22866] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22866] exit_group(0)               = ?
[pid 22866] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22866, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22287", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22287", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22287/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22287/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22287/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22287")                        = 0
mkdir("./22288", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22867
./strace-static-x86_64: Process 22867 attached
[pid 22867] set_robust_list(0x55557a32b660, 24) = 0
[pid 22867] chdir("./22288")            = 0
[pid 22867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22867] setpgid(0, 0)               = 0
[pid 22867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22867] write(3, "1000", 4)         = 4
[pid 22867] close(3)                    = 0
[pid 22867] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22867] write(1, "executing program\n", 18executing program
) = 18
[pid 22867] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22867] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22867] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22867] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22867] exit_group(0)               = ?
[pid 22867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22867, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22288", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22288", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22288/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22288/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22288/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22288")                        = 0
mkdir("./22289", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22868 attached
, child_tidptr=0x55557a32b650) = 22868
[pid 22868] set_robust_list(0x55557a32b660, 24) = 0
[pid 22868] chdir("./22289")            = 0
[pid 22868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22868] setpgid(0, 0)               = 0
[pid 22868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22868] write(3, "1000", 4)         = 4
[pid 22868] close(3)                    = 0
[pid 22868] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22868] write(1, "executing program\n", 18executing program
) = 18
[pid 22868] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22868] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22868] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22868] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22868] exit_group(0)               = ?
[pid 22868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22868, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22289", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22289", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22289/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22289/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22289/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22289")                        = 0
mkdir("./22290", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22869 attached
, child_tidptr=0x55557a32b650) = 22869
[pid 22869] set_robust_list(0x55557a32b660, 24) = 0
[pid 22869] chdir("./22290")            = 0
[pid 22869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22869] setpgid(0, 0)               = 0
[pid 22869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22869] write(3, "1000", 4)         = 4
[pid 22869] close(3)                    = 0
[pid 22869] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22869] write(1, "executing program\n", 18executing program
) = 18
[pid 22869] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22869] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22869] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22869] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22869] exit_group(0)               = ?
[pid 22869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22869, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22290", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22290", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22290/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22290/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22290/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22290")                        = 0
mkdir("./22291", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22870
./strace-static-x86_64: Process 22870 attached
[pid 22870] set_robust_list(0x55557a32b660, 24) = 0
[pid 22870] chdir("./22291")            = 0
[pid 22870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22870] setpgid(0, 0)               = 0
[pid 22870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22870] write(3, "1000", 4)         = 4
[pid 22870] close(3)                    = 0
[pid 22870] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22870] write(1, "executing program\n", 18executing program
) = 18
[pid 22870] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22870] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22870] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22870] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22870] exit_group(0)               = ?
[pid 22870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22870, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22291", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22291", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22291/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22291/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22291/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22291")                        = 0
mkdir("./22292", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22871 attached
, child_tidptr=0x55557a32b650) = 22871
[pid 22871] set_robust_list(0x55557a32b660, 24) = 0
[pid 22871] chdir("./22292")            = 0
[pid 22871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22871] setpgid(0, 0)               = 0
[pid 22871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22871] write(3, "1000", 4)         = 4
[pid 22871] close(3)                    = 0
[pid 22871] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22871] write(1, "executing program\n", 18executing program
) = 18
[pid 22871] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22871] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22871] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22871] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22871] exit_group(0)               = ?
[pid 22871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22871, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22292", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22292", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22292/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22292/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22292/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22292")                        = 0
mkdir("./22293", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22872 attached
, child_tidptr=0x55557a32b650) = 22872
[pid 22872] set_robust_list(0x55557a32b660, 24) = 0
[pid 22872] chdir("./22293")            = 0
[pid 22872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22872] setpgid(0, 0)               = 0
[pid 22872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22872] write(3, "1000", 4)         = 4
[pid 22872] close(3)                    = 0
[pid 22872] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22872] write(1, "executing program\n", 18executing program
) = 18
[pid 22872] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22872] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22872] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22872] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22872] exit_group(0)               = ?
[pid 22872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22872, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22293", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22293", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22293/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22293/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22293/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22293")                        = 0
mkdir("./22294", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22873 attached
 <unfinished ...>
[pid 22873] set_robust_list(0x55557a32b660, 24) = 0
[pid 22873] chdir("./22294")            = 0
[pid 22873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22873] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22873
[pid 22873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22873] write(3, "1000", 4)         = 4
[pid 22873] close(3)                    = 0
[pid 22873] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22873] write(1, "executing program\n", 18) = 18
[pid 22873] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22873] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22873] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22873] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22873] exit_group(0)               = ?
[pid 22873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22873, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22294", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22294", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22294/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22294/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22294/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22294")                        = 0
mkdir("./22295", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22874 attached
 <unfinished ...>
[pid 22874] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22874
[pid 22874] chdir("./22295")            = 0
[pid 22874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22874] setpgid(0, 0)               = 0
[pid 22874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22874] write(3, "1000", 4)         = 4
[pid 22874] close(3)                    = 0
[pid 22874] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22874] write(1, "executing program\n", 18executing program
) = 18
[pid 22874] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22874] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22874] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22874] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22874] exit_group(0)               = ?
[pid 22874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22874, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22295", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22295", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22295/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22295/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22295/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22295")                        = 0
mkdir("./22296", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22875
./strace-static-x86_64: Process 22875 attached
[pid 22875] set_robust_list(0x55557a32b660, 24) = 0
[pid 22875] chdir("./22296")            = 0
[pid 22875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22875] setpgid(0, 0)               = 0
[pid 22875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22875] write(3, "1000", 4)         = 4
[pid 22875] close(3)                    = 0
[pid 22875] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22875] write(1, "executing program\n", 18executing program
) = 18
[pid 22875] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22875] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22875] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22875] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22875] exit_group(0)               = ?
[pid 22875] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22875, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22296", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22296", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22296/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22296/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22296/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22296")                        = 0
mkdir("./22297", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22876
./strace-static-x86_64: Process 22876 attached
[pid 22876] set_robust_list(0x55557a32b660, 24) = 0
[pid 22876] chdir("./22297")            = 0
[pid 22876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22876] setpgid(0, 0)               = 0
[pid 22876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22876] write(3, "1000", 4)         = 4
[pid 22876] close(3)                    = 0
[pid 22876] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22876] write(1, "executing program\n", 18executing program
) = 18
[pid 22876] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22876] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22876] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22876] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22876] exit_group(0)               = ?
[pid 22876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22876, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22297", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22297", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22297/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22297/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22297/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22297")                        = 0
mkdir("./22298", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22877
./strace-static-x86_64: Process 22877 attached
[pid 22877] set_robust_list(0x55557a32b660, 24) = 0
[pid 22877] chdir("./22298")            = 0
[pid 22877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22877] setpgid(0, 0)               = 0
[pid 22877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22877] write(3, "1000", 4)         = 4
[pid 22877] close(3)                    = 0
[pid 22877] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22877] write(1, "executing program\n", 18executing program
) = 18
[pid 22877] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22877] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22877] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22877] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22877] exit_group(0)               = ?
[pid 22877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22877, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22298", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22298", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22298/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22298/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22298/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22298")                        = 0
mkdir("./22299", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22878
./strace-static-x86_64: Process 22878 attached
[pid 22878] set_robust_list(0x55557a32b660, 24) = 0
[pid 22878] chdir("./22299")            = 0
[pid 22878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22878] setpgid(0, 0)               = 0
[pid 22878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22878] write(3, "1000", 4)         = 4
[pid 22878] close(3)                    = 0
[pid 22878] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22878] write(1, "executing program\n", 18executing program
) = 18
[pid 22878] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22878] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22878] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22878] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22878] exit_group(0)               = ?
[pid 22878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22878, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22299", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22299", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22299/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22299/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22299/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22299")                        = 0
mkdir("./22300", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22879
./strace-static-x86_64: Process 22879 attached
[pid 22879] set_robust_list(0x55557a32b660, 24) = 0
[pid 22879] chdir("./22300")            = 0
[pid 22879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22879] setpgid(0, 0)               = 0
[pid 22879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22879] write(3, "1000", 4)         = 4
[pid 22879] close(3)                    = 0
[pid 22879] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22879] write(1, "executing program\n", 18executing program
) = 18
[pid 22879] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22879] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22879] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22879] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22879] exit_group(0)               = ?
[pid 22879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22879, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22300", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22300", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22300/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22300/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22300/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22300")                        = 0
mkdir("./22301", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22880 attached
, child_tidptr=0x55557a32b650) = 22880
[pid 22880] set_robust_list(0x55557a32b660, 24) = 0
[pid 22880] chdir("./22301")            = 0
[pid 22880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22880] setpgid(0, 0)               = 0
[pid 22880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22880] write(3, "1000", 4)         = 4
[pid 22880] close(3)                    = 0
[pid 22880] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22880] write(1, "executing program\n", 18executing program
) = 18
[pid 22880] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22880] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22880] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22880] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22880] exit_group(0)               = ?
[pid 22880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22880, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22301", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22301", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22301/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22301/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22301/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22301")                        = 0
mkdir("./22302", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22881 attached
 <unfinished ...>
[pid 22881] set_robust_list(0x55557a32b660, 24) = 0
[pid 22881] chdir("./22302" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22881
[pid 22881] <... chdir resumed>)        = 0
[pid 22881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22881] setpgid(0, 0)               = 0
[pid 22881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22881] write(3, "1000", 4)         = 4
[pid 22881] close(3)                    = 0
[pid 22881] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22881] write(1, "executing program\n", 18executing program
) = 18
[pid 22881] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22881] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22881] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22881] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22881] exit_group(0)               = ?
[pid 22881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22881, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22302", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22302", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22302/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22302/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22302/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22302")                        = 0
mkdir("./22303", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22882 attached
, child_tidptr=0x55557a32b650) = 22882
[pid 22882] set_robust_list(0x55557a32b660, 24) = 0
[pid 22882] chdir("./22303")            = 0
[pid 22882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22882] setpgid(0, 0)               = 0
[pid 22882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22882] write(3, "1000", 4)         = 4
[pid 22882] close(3)                    = 0
[pid 22882] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22882] write(1, "executing program\n", 18) = 18
[pid 22882] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22882] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22882] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22882] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22882] exit_group(0)               = ?
[pid 22882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22882, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22303", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22303", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22303/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22303/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22303/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22303")                        = 0
mkdir("./22304", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22883
./strace-static-x86_64: Process 22883 attached
[pid 22883] set_robust_list(0x55557a32b660, 24) = 0
[pid 22883] chdir("./22304")            = 0
[pid 22883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22883] setpgid(0, 0)               = 0
[pid 22883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22883] write(3, "1000", 4)         = 4
[pid 22883] close(3)                    = 0
[pid 22883] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22883] write(1, "executing program\n", 18executing program
) = 18
[pid 22883] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22883] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22883] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22883] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22883] exit_group(0)               = ?
[pid 22883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22883, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22304", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22304", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22304/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22304/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22304/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22304")                        = 0
mkdir("./22305", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22884
./strace-static-x86_64: Process 22884 attached
[pid 22884] set_robust_list(0x55557a32b660, 24) = 0
[pid 22884] chdir("./22305")            = 0
[pid 22884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22884] setpgid(0, 0)               = 0
[pid 22884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22884] write(3, "1000", 4)         = 4
[pid 22884] close(3)                    = 0
[pid 22884] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22884] write(1, "executing program\n", 18) = 18
[pid 22884] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22884] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22884] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22884] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22884] exit_group(0)               = ?
[pid 22884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22884, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22305", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22305", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22305/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22305/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22305/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22305")                        = 0
mkdir("./22306", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22885 attached
, child_tidptr=0x55557a32b650) = 22885
[pid 22885] set_robust_list(0x55557a32b660, 24) = 0
[pid 22885] chdir("./22306")            = 0
[pid 22885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22885] setpgid(0, 0)               = 0
[pid 22885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22885] write(3, "1000", 4)         = 4
[pid 22885] close(3)                    = 0
[pid 22885] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22885] write(1, "executing program\n", 18executing program
) = 18
[pid 22885] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22885] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22885] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22885] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22885] exit_group(0)               = ?
[pid 22885] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22885, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22306", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22306", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22306/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22306/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22306/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22306")                        = 0
mkdir("./22307", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22886 attached
, child_tidptr=0x55557a32b650) = 22886
[pid 22886] set_robust_list(0x55557a32b660, 24) = 0
[pid 22886] chdir("./22307")            = 0
[pid 22886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22886] setpgid(0, 0)               = 0
[pid 22886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22886] write(3, "1000", 4)         = 4
[pid 22886] close(3)                    = 0
[pid 22886] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22886] write(1, "executing program\n", 18executing program
) = 18
[pid 22886] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22886] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22886] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22886] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22886] exit_group(0)               = ?
[pid 22886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22886, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22307", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22307", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22307/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22307/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22307/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22307")                        = 0
mkdir("./22308", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22887
./strace-static-x86_64: Process 22887 attached
[pid 22887] set_robust_list(0x55557a32b660, 24) = 0
[pid 22887] chdir("./22308")            = 0
[pid 22887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22887] setpgid(0, 0)               = 0
[pid 22887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22887] write(3, "1000", 4)         = 4
[pid 22887] close(3)                    = 0
[pid 22887] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22887] write(1, "executing program\n", 18executing program
) = 18
[pid 22887] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22887] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22887] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22887] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22887] exit_group(0)               = ?
[pid 22887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22887, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22308", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22308", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22308/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22308/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22308/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22308")                        = 0
mkdir("./22309", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22888 attached
, child_tidptr=0x55557a32b650) = 22888
[pid 22888] set_robust_list(0x55557a32b660, 24) = 0
[pid 22888] chdir("./22309")            = 0
[pid 22888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22888] setpgid(0, 0)               = 0
[pid 22888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22888] write(3, "1000", 4)         = 4
[pid 22888] close(3)                    = 0
[pid 22888] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22888] write(1, "executing program\n", 18executing program
) = 18
[pid 22888] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22888] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22888] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22888] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22888] exit_group(0)               = ?
[pid 22888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22888, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22309", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22309", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22309/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22309/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22309/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22309")                        = 0
mkdir("./22310", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22889 attached
, child_tidptr=0x55557a32b650) = 22889
[pid 22889] set_robust_list(0x55557a32b660, 24) = 0
[pid 22889] chdir("./22310")            = 0
[pid 22889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22889] setpgid(0, 0)               = 0
[pid 22889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22889] write(3, "1000", 4)         = 4
[pid 22889] close(3)                    = 0
[pid 22889] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22889] write(1, "executing program\n", 18executing program
) = 18
[pid 22889] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22889] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22889] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22889] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22889] exit_group(0)               = ?
[pid 22889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22889, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22310", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22310", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22310/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22310/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22310/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22310")                        = 0
mkdir("./22311", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22890 attached
 <unfinished ...>
[pid 22890] set_robust_list(0x55557a32b660, 24) = 0
[pid 22890] chdir("./22311")            = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22890
[pid 22890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22890] setpgid(0, 0)               = 0
[pid 22890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22890] write(3, "1000", 4)         = 4
[pid 22890] close(3)                    = 0
[pid 22890] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22890] write(1, "executing program\n", 18executing program
) = 18
[pid 22890] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22890] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22890] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22890] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22890] exit_group(0)               = ?
[pid 22890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22890, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22311", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22311", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22311/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22311/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22311/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22311")                        = 0
mkdir("./22312", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22891
./strace-static-x86_64: Process 22891 attached
[pid 22891] set_robust_list(0x55557a32b660, 24) = 0
[pid 22891] chdir("./22312")            = 0
[pid 22891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22891] setpgid(0, 0)               = 0
[pid 22891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22891] write(3, "1000", 4)         = 4
[pid 22891] close(3)                    = 0
[pid 22891] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22891] write(1, "executing program\n", 18) = 18
[pid 22891] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22891] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22891] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22891] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22891] exit_group(0)               = ?
[pid 22891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22891, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22312", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22312", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22312/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22312/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22312/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22312")                        = 0
mkdir("./22313", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22892 attached
, child_tidptr=0x55557a32b650) = 22892
[pid 22892] set_robust_list(0x55557a32b660, 24) = 0
[pid 22892] chdir("./22313")            = 0
[pid 22892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22892] setpgid(0, 0)               = 0
[pid 22892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22892] write(3, "1000", 4)         = 4
[pid 22892] close(3)                    = 0
[pid 22892] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22892] write(1, "executing program\n", 18executing program
) = 18
[pid 22892] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22892] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22892] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22892] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22892] exit_group(0)               = ?
[pid 22892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22892, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22313", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22313", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22313/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22313/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22313/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22313")                        = 0
mkdir("./22314", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22893
./strace-static-x86_64: Process 22893 attached
[pid 22893] set_robust_list(0x55557a32b660, 24) = 0
[pid 22893] chdir("./22314")            = 0
[pid 22893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22893] setpgid(0, 0)               = 0
[pid 22893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22893] write(3, "1000", 4)         = 4
[pid 22893] close(3)                    = 0
[pid 22893] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22893] write(1, "executing program\n", 18executing program
) = 18
[pid 22893] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22893] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22893] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22893] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22893] exit_group(0)               = ?
[pid 22893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22893, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22314", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22314", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22314/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22314/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22314/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22314")                        = 0
mkdir("./22315", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22894
./strace-static-x86_64: Process 22894 attached
[pid 22894] set_robust_list(0x55557a32b660, 24) = 0
[pid 22894] chdir("./22315")            = 0
[pid 22894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22894] setpgid(0, 0)               = 0
[pid 22894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22894] write(3, "1000", 4)         = 4
[pid 22894] close(3)                    = 0
[pid 22894] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22894] write(1, "executing program\n", 18) = 18
[pid 22894] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22894] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22894] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22894] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22894] exit_group(0)               = ?
[pid 22894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22894, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22315", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22315", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22315/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22315/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22315/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22315")                        = 0
mkdir("./22316", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22895 attached
, child_tidptr=0x55557a32b650) = 22895
[pid 22895] set_robust_list(0x55557a32b660, 24) = 0
[pid 22895] chdir("./22316")            = 0
[pid 22895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22895] setpgid(0, 0)               = 0
[pid 22895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22895] write(3, "1000", 4)         = 4
[pid 22895] close(3)                    = 0
[pid 22895] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22895] write(1, "executing program\n", 18executing program
) = 18
[pid 22895] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22895] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22895] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22895] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22895] exit_group(0)               = ?
[pid 22895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22895, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22316", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22316", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22316/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22316/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22316/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22316")                        = 0
mkdir("./22317", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22896
./strace-static-x86_64: Process 22896 attached
[pid 22896] set_robust_list(0x55557a32b660, 24) = 0
[pid 22896] chdir("./22317")            = 0
[pid 22896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22896] setpgid(0, 0)               = 0
[pid 22896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22896] write(3, "1000", 4)         = 4
[pid 22896] close(3)                    = 0
[pid 22896] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22896] write(1, "executing program\n", 18executing program
) = 18
[pid 22896] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22896] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22896] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22896] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22896] exit_group(0)               = ?
[pid 22896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22896, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22317", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22317", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22317/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22317/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22317/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22317")                        = 0
mkdir("./22318", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22897
./strace-static-x86_64: Process 22897 attached
[pid 22897] set_robust_list(0x55557a32b660, 24) = 0
[pid 22897] chdir("./22318")            = 0
[pid 22897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22897] setpgid(0, 0)               = 0
[pid 22897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22897] write(3, "1000", 4)         = 4
[pid 22897] close(3)                    = 0
[pid 22897] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22897] write(1, "executing program\n", 18executing program
) = 18
[pid 22897] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22897] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22897] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22897] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22897] exit_group(0)               = ?
[pid 22897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22897, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22318", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22318", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22318/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22318/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22318/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22318")                        = 0
mkdir("./22319", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22899
./strace-static-x86_64: Process 22899 attached
[pid 22899] set_robust_list(0x55557a32b660, 24) = 0
[pid 22899] chdir("./22319")            = 0
[pid 22899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22899] setpgid(0, 0)               = 0
[pid 22899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22899] write(3, "1000", 4)         = 4
[pid 22899] close(3)                    = 0
[pid 22899] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22899] write(1, "executing program\n", 18executing program
) = 18
[pid 22899] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22899] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22899] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22899] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22899] exit_group(0)               = ?
[pid 22899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22899, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22319", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22319", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22319/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22319/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22319/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22319")                        = 0
mkdir("./22320", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22900
./strace-static-x86_64: Process 22900 attached
[pid 22900] set_robust_list(0x55557a32b660, 24) = 0
[pid 22900] chdir("./22320")            = 0
[pid 22900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22900] setpgid(0, 0)               = 0
[pid 22900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22900] write(3, "1000", 4)         = 4
[pid 22900] close(3)                    = 0
[pid 22900] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22900] write(1, "executing program\n", 18executing program
) = 18
[pid 22900] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22900] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22900] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22900] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22900] exit_group(0)               = ?
[pid 22900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22900, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22320", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22320", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22320/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22320/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22320/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22320")                        = 0
mkdir("./22321", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22901 attached
, child_tidptr=0x55557a32b650) = 22901
[pid 22901] set_robust_list(0x55557a32b660, 24) = 0
[pid 22901] chdir("./22321")            = 0
[pid 22901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22901] setpgid(0, 0)               = 0
[pid 22901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22901] write(3, "1000", 4)         = 4
[pid 22901] close(3)                    = 0
[pid 22901] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22901] write(1, "executing program\n", 18executing program
) = 18
[pid 22901] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22901] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22901] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22901] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22901] exit_group(0)               = ?
[pid 22901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22901, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22321", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22321", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22321/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22321/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22321/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22321")                        = 0
mkdir("./22322", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22902
./strace-static-x86_64: Process 22902 attached
[pid 22902] set_robust_list(0x55557a32b660, 24) = 0
[pid 22902] chdir("./22322")            = 0
[pid 22902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22902] setpgid(0, 0)               = 0
[pid 22902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22902] write(3, "1000", 4)         = 4
[pid 22902] close(3)                    = 0
[pid 22902] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22902] write(1, "executing program\n", 18executing program
) = 18
[pid 22902] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22902] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22902] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22902] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22902] exit_group(0)               = ?
[pid 22902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22902, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22322", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22322", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22322/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22322/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22322/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22322")                        = 0
mkdir("./22323", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22903 attached
, child_tidptr=0x55557a32b650) = 22903
[pid 22903] set_robust_list(0x55557a32b660, 24) = 0
[pid 22903] chdir("./22323")            = 0
[pid 22903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22903] setpgid(0, 0)               = 0
[pid 22903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22903] write(3, "1000", 4)         = 4
[pid 22903] close(3)                    = 0
[pid 22903] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22903] write(1, "executing program\n", 18) = 18
[pid 22903] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22903] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22903] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22903] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22903] exit_group(0)               = ?
[pid 22903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22903, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22323", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22323", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22323/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22323/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22323/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22323")                        = 0
mkdir("./22324", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22904 attached
, child_tidptr=0x55557a32b650) = 22904
[pid 22904] set_robust_list(0x55557a32b660, 24) = 0
[pid 22904] chdir("./22324")            = 0
[pid 22904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22904] setpgid(0, 0)               = 0
[pid 22904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22904] write(3, "1000", 4)         = 4
[pid 22904] close(3)                    = 0
[pid 22904] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22904] write(1, "executing program\n", 18executing program
) = 18
[pid 22904] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22904] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22904] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22904] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22904] exit_group(0)               = ?
[pid 22904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22904, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22324", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22324", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22324/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22324/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22324/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22324")                        = 0
mkdir("./22325", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22905
./strace-static-x86_64: Process 22905 attached
[pid 22905] set_robust_list(0x55557a32b660, 24) = 0
[pid 22905] chdir("./22325")            = 0
[pid 22905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22905] setpgid(0, 0)               = 0
[pid 22905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22905] write(3, "1000", 4)         = 4
[pid 22905] close(3)                    = 0
[pid 22905] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22905] write(1, "executing program\n", 18executing program
) = 18
[pid 22905] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22905] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22905] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22905] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22905] exit_group(0)               = ?
[pid 22905] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22905, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22325", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22325", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22325/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22325/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22325/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22325")                        = 0
mkdir("./22326", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22906 attached
, child_tidptr=0x55557a32b650) = 22906
[pid 22906] set_robust_list(0x55557a32b660, 24) = 0
[pid 22906] chdir("./22326")            = 0
[pid 22906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22906] setpgid(0, 0)               = 0
[pid 22906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22906] write(3, "1000", 4)         = 4
[pid 22906] close(3)                    = 0
[pid 22906] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22906] write(1, "executing program\n", 18executing program
) = 18
[pid 22906] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22906] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22906] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22906] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22906] exit_group(0)               = ?
[pid 22906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22906, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22326", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22326", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22326/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22326/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22326/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22326")                        = 0
mkdir("./22327", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22907
./strace-static-x86_64: Process 22907 attached
[pid 22907] set_robust_list(0x55557a32b660, 24) = 0
[pid 22907] chdir("./22327")            = 0
[pid 22907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22907] setpgid(0, 0)               = 0
[pid 22907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22907] write(3, "1000", 4)         = 4
[pid 22907] close(3)                    = 0
[pid 22907] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22907] write(1, "executing program\n", 18executing program
) = 18
[pid 22907] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22907] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22907] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22907] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22907] exit_group(0)               = ?
[pid 22907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22907, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22327", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22327", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22327/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22327/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22327/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22327")                        = 0
mkdir("./22328", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22908 attached
 <unfinished ...>
[pid 22908] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 22908
[pid 22908] chdir("./22328")            = 0
[pid 22908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22908] setpgid(0, 0)               = 0
[pid 22908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22908] write(3, "1000", 4)         = 4
[pid 22908] close(3)                    = 0
[pid 22908] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22908] write(1, "executing program\n", 18executing program
) = 18
[pid 22908] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22908] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22908] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22908] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22908] exit_group(0)               = ?
[pid 22908] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22908, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22328", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22328", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22328/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22328/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22328/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22328")                        = 0
mkdir("./22329", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22909
./strace-static-x86_64: Process 22909 attached
[pid 22909] set_robust_list(0x55557a32b660, 24) = 0
[pid 22909] chdir("./22329")            = 0
[pid 22909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22909] setpgid(0, 0)               = 0
[pid 22909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22909] write(3, "1000", 4)         = 4
[pid 22909] close(3)                    = 0
[pid 22909] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22909] write(1, "executing program\n", 18executing program
) = 18
[pid 22909] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22909] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22909] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22909] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22909] exit_group(0)               = ?
[pid 22909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22909, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22329", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22329", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22329/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22329/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22329/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22329")                        = 0
mkdir("./22330", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22910
./strace-static-x86_64: Process 22910 attached
[pid 22910] set_robust_list(0x55557a32b660, 24) = 0
[pid 22910] chdir("./22330")            = 0
[pid 22910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22910] setpgid(0, 0)               = 0
[pid 22910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22910] write(3, "1000", 4)         = 4
[pid 22910] close(3)                    = 0
[pid 22910] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22910] write(1, "executing program\n", 18executing program
) = 18
[pid 22910] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22910] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22910] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22910] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22910] exit_group(0)               = ?
[pid 22910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22910, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22330", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22330", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22330/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22330/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22330/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22330")                        = 0
mkdir("./22331", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22911
./strace-static-x86_64: Process 22911 attached
[pid 22911] set_robust_list(0x55557a32b660, 24) = 0
[pid 22911] chdir("./22331")            = 0
[pid 22911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22911] setpgid(0, 0)               = 0
[pid 22911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22911] write(3, "1000", 4)         = 4
[pid 22911] close(3)                    = 0
[pid 22911] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22911] write(1, "executing program\n", 18executing program
) = 18
[pid 22911] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22911] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22911] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22911] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22911] exit_group(0)               = ?
[pid 22911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22911, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22331", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22331", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22331/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22331/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22331/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22331")                        = 0
mkdir("./22332", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22912
./strace-static-x86_64: Process 22912 attached
[pid 22912] set_robust_list(0x55557a32b660, 24) = 0
[pid 22912] chdir("./22332")            = 0
[pid 22912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22912] setpgid(0, 0)               = 0
[pid 22912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22912] write(3, "1000", 4)         = 4
[pid 22912] close(3)                    = 0
[pid 22912] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22912] write(1, "executing program\n", 18executing program
) = 18
[pid 22912] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22912] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22912] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22912] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22912] exit_group(0)               = ?
[pid 22912] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22912, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22332", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22332", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22332/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22332/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22332/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22332")                        = 0
mkdir("./22333", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22913 attached
, child_tidptr=0x55557a32b650) = 22913
[pid 22913] set_robust_list(0x55557a32b660, 24) = 0
[pid 22913] chdir("./22333")            = 0
[pid 22913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22913] setpgid(0, 0)               = 0
[pid 22913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22913] write(3, "1000", 4)         = 4
[pid 22913] close(3)                    = 0
[pid 22913] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22913] write(1, "executing program\n", 18executing program
) = 18
[pid 22913] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22913] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22913] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22913] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22913] exit_group(0)               = ?
[pid 22913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22913, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22333", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22333", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22333/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22333/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22333/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22333")                        = 0
mkdir("./22334", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22914
./strace-static-x86_64: Process 22914 attached
[pid 22914] set_robust_list(0x55557a32b660, 24) = 0
[pid 22914] chdir("./22334")            = 0
[pid 22914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22914] setpgid(0, 0)               = 0
[pid 22914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22914] write(3, "1000", 4)         = 4
[pid 22914] close(3)                    = 0
[pid 22914] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22914] write(1, "executing program\n", 18executing program
) = 18
[pid 22914] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22914] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22914] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22914] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22914] exit_group(0)               = ?
[pid 22914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22914, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22334", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22334", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22334/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22334/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22334/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22334")                        = 0
mkdir("./22335", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22915 attached
, child_tidptr=0x55557a32b650) = 22915
[pid 22915] set_robust_list(0x55557a32b660, 24) = 0
[pid 22915] chdir("./22335")            = 0
[pid 22915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22915] setpgid(0, 0)               = 0
[pid 22915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22915] write(3, "1000", 4)         = 4
[pid 22915] close(3)                    = 0
[pid 22915] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22915] write(1, "executing program\n", 18executing program
) = 18
[pid 22915] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22915] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22915] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22915] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22915] exit_group(0)               = ?
[pid 22915] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22915, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22335", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22335", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22335/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22335/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22335/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22335")                        = 0
mkdir("./22336", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22916 attached
, child_tidptr=0x55557a32b650) = 22916
[pid 22916] set_robust_list(0x55557a32b660, 24) = 0
[pid 22916] chdir("./22336")            = 0
[pid 22916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22916] setpgid(0, 0)               = 0
[pid 22916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22916] write(3, "1000", 4)         = 4
[pid 22916] close(3)                    = 0
[pid 22916] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22916] write(1, "executing program\n", 18executing program
) = 18
[pid 22916] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22916] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22916] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22916] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22916] exit_group(0)               = ?
[pid 22916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22916, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22336", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22336", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22336/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22336/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22336/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22336")                        = 0
mkdir("./22337", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22917
./strace-static-x86_64: Process 22917 attached
[pid 22917] set_robust_list(0x55557a32b660, 24) = 0
[pid 22917] chdir("./22337")            = 0
[pid 22917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22917] setpgid(0, 0)               = 0
[pid 22917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22917] write(3, "1000", 4)         = 4
[pid 22917] close(3)                    = 0
[pid 22917] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22917] write(1, "executing program\n", 18executing program
) = 18
[pid 22917] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22917] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22917] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22917] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22917] exit_group(0)               = ?
[pid 22917] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22917, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22337", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22337", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22337/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22337/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22337/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22337")                        = 0
mkdir("./22338", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22918 attached
, child_tidptr=0x55557a32b650) = 22918
[pid 22918] set_robust_list(0x55557a32b660, 24) = 0
[pid 22918] chdir("./22338")            = 0
[pid 22918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22918] setpgid(0, 0)               = 0
[pid 22918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22918] write(3, "1000", 4)         = 4
[pid 22918] close(3)                    = 0
[pid 22918] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22918] write(1, "executing program\n", 18executing program
) = 18
[pid 22918] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22918] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22918] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22918] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22918] exit_group(0)               = ?
[pid 22918] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22918, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22338", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22338", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22338/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22338/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22338/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22338")                        = 0
mkdir("./22339", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22919
./strace-static-x86_64: Process 22919 attached
[pid 22919] set_robust_list(0x55557a32b660, 24) = 0
[pid 22919] chdir("./22339")            = 0
[pid 22919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22919] setpgid(0, 0)               = 0
[pid 22919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22919] write(3, "1000", 4)         = 4
[pid 22919] close(3)                    = 0
[pid 22919] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22919] write(1, "executing program\n", 18executing program
) = 18
[pid 22919] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22919] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22919] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22919] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22919] exit_group(0)               = ?
[pid 22919] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22919, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22339", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22339", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22339/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22339/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22339/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22339")                        = 0
mkdir("./22340", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22920
./strace-static-x86_64: Process 22920 attached
[pid 22920] set_robust_list(0x55557a32b660, 24) = 0
[pid 22920] chdir("./22340")            = 0
[pid 22920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22920] setpgid(0, 0)               = 0
[pid 22920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22920] write(3, "1000", 4)         = 4
[pid 22920] close(3)                    = 0
[pid 22920] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22920] write(1, "executing program\n", 18executing program
) = 18
[pid 22920] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22920] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22920] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22920] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22920] exit_group(0)               = ?
[pid 22920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22920, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22340", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22340", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22340/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22340/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22340/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22340")                        = 0
mkdir("./22341", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22921
./strace-static-x86_64: Process 22921 attached
[pid 22921] set_robust_list(0x55557a32b660, 24) = 0
[pid 22921] chdir("./22341")            = 0
[pid 22921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22921] setpgid(0, 0)               = 0
[pid 22921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22921] write(3, "1000", 4)         = 4
[pid 22921] close(3)                    = 0
[pid 22921] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22921] write(1, "executing program\n", 18executing program
) = 18
[pid 22921] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22921] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22921] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22921] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22921] exit_group(0)               = ?
[pid 22921] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22921, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22341", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22341", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22341/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22341/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22341/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22341")                        = 0
mkdir("./22342", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22922
./strace-static-x86_64: Process 22922 attached
[pid 22922] set_robust_list(0x55557a32b660, 24) = 0
[pid 22922] chdir("./22342")            = 0
[pid 22922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22922] setpgid(0, 0)               = 0
[pid 22922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22922] write(3, "1000", 4)         = 4
[pid 22922] close(3)                    = 0
[pid 22922] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22922] write(1, "executing program\n", 18executing program
) = 18
[pid 22922] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22922] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22922] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22922] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22922] exit_group(0)               = ?
[pid 22922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22922, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22342", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22342", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22342/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22342/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22342/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22342")                        = 0
mkdir("./22343", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22923
./strace-static-x86_64: Process 22923 attached
[pid 22923] set_robust_list(0x55557a32b660, 24) = 0
[pid 22923] chdir("./22343")            = 0
[pid 22923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22923] setpgid(0, 0)               = 0
[pid 22923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22923] write(3, "1000", 4)         = 4
[pid 22923] close(3)                    = 0
[pid 22923] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22923] write(1, "executing program\n", 18executing program
) = 18
[pid 22923] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22923] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22923] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22923] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22923] exit_group(0)               = ?
[pid 22923] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22923, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22343", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22343", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22343/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22343/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22343/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22343")                        = 0
mkdir("./22344", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22924
./strace-static-x86_64: Process 22924 attached
[pid 22924] set_robust_list(0x55557a32b660, 24) = 0
[pid 22924] chdir("./22344")            = 0
[pid 22924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22924] setpgid(0, 0)               = 0
[pid 22924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22924] write(3, "1000", 4)         = 4
[pid 22924] close(3)                    = 0
[pid 22924] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22924] write(1, "executing program\n", 18executing program
) = 18
[pid 22924] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22924] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22924] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22924] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22924] exit_group(0)               = ?
[pid 22924] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22924, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22344", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22344", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22344/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22344/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22344/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22344")                        = 0
mkdir("./22345", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22925
./strace-static-x86_64: Process 22925 attached
[pid 22925] set_robust_list(0x55557a32b660, 24) = 0
[pid 22925] chdir("./22345")            = 0
[pid 22925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22925] setpgid(0, 0)               = 0
[pid 22925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22925] write(3, "1000", 4)         = 4
[pid 22925] close(3)                    = 0
[pid 22925] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22925] write(1, "executing program\n", 18executing program
) = 18
[pid 22925] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22925] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22925] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22925] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22925] exit_group(0)               = ?
[pid 22925] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22925, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22345", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22345", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22345/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22345/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22345/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22345")                        = 0
mkdir("./22346", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22926
./strace-static-x86_64: Process 22926 attached
[pid 22926] set_robust_list(0x55557a32b660, 24) = 0
[pid 22926] chdir("./22346")            = 0
[pid 22926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22926] setpgid(0, 0)               = 0
[pid 22926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22926] write(3, "1000", 4)         = 4
[pid 22926] close(3)                    = 0
[pid 22926] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22926] write(1, "executing program\n", 18executing program
) = 18
[pid 22926] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22926] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22926] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22926] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22926] exit_group(0)               = ?
[pid 22926] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22926, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22346", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22346", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22346/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22346/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22346/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22346")                        = 0
mkdir("./22347", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22927
./strace-static-x86_64: Process 22927 attached
[pid 22927] set_robust_list(0x55557a32b660, 24) = 0
[pid 22927] chdir("./22347")            = 0
[pid 22927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22927] setpgid(0, 0)               = 0
[pid 22927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22927] write(3, "1000", 4)         = 4
[pid 22927] close(3)                    = 0
[pid 22927] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22927] write(1, "executing program\n", 18) = 18
[pid 22927] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22927] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22927] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22927] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22927] exit_group(0)               = ?
[pid 22927] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22927, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22347", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22347", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22347/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22347/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22347/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22347")                        = 0
mkdir("./22348", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22928
./strace-static-x86_64: Process 22928 attached
[pid 22928] set_robust_list(0x55557a32b660, 24) = 0
[pid 22928] chdir("./22348")            = 0
[pid 22928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22928] setpgid(0, 0)               = 0
[pid 22928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22928] write(3, "1000", 4)         = 4
[pid 22928] close(3)                    = 0
[pid 22928] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22928] write(1, "executing program\n", 18) = 18
executing program
[pid 22928] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22928] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22928] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22928] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22928] exit_group(0)               = ?
[pid 22928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22928, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22348", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22348", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22348/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22348/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22348/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22348")                        = 0
mkdir("./22349", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22929
./strace-static-x86_64: Process 22929 attached
[pid 22929] set_robust_list(0x55557a32b660, 24) = 0
[pid 22929] chdir("./22349")            = 0
[pid 22929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22929] setpgid(0, 0)               = 0
[pid 22929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22929] write(3, "1000", 4)         = 4
[pid 22929] close(3)                    = 0
[pid 22929] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22929] write(1, "executing program\n", 18executing program
) = 18
[pid 22929] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22929] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22929] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22929] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22929] exit_group(0)               = ?
[pid 22929] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22929, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22349", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22349", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22349/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22349/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22349/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22349")                        = 0
mkdir("./22350", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22930
./strace-static-x86_64: Process 22930 attached
[pid 22930] set_robust_list(0x55557a32b660, 24) = 0
[pid 22930] chdir("./22350")            = 0
[pid 22930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22930] setpgid(0, 0)               = 0
[pid 22930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22930] write(3, "1000", 4)         = 4
[pid 22930] close(3)                    = 0
[pid 22930] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22930] write(1, "executing program\n", 18executing program
) = 18
[pid 22930] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22930] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22930] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22930] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22930] exit_group(0)               = ?
[pid 22930] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22930, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22350", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22350", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22350/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22350/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22350/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22350")                        = 0
mkdir("./22351", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22931 attached
, child_tidptr=0x55557a32b650) = 22931
[pid 22931] set_robust_list(0x55557a32b660, 24) = 0
[pid 22931] chdir("./22351")            = 0
[pid 22931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22931] setpgid(0, 0)               = 0
[pid 22931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22931] write(3, "1000", 4)         = 4
[pid 22931] close(3)                    = 0
[pid 22931] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22931] write(1, "executing program\n", 18executing program
) = 18
[pid 22931] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22931] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22931] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22931] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22931] exit_group(0)               = ?
[pid 22931] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22931, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22351", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22351", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22351/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22351/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22351/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22351")                        = 0
mkdir("./22352", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22932
./strace-static-x86_64: Process 22932 attached
[pid 22932] set_robust_list(0x55557a32b660, 24) = 0
[pid 22932] chdir("./22352")            = 0
[pid 22932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22932] setpgid(0, 0)               = 0
[pid 22932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22932] write(3, "1000", 4)         = 4
[pid 22932] close(3)                    = 0
[pid 22932] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22932] write(1, "executing program\n", 18) = 18
[pid 22932] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22932] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22932] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22932] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22932] exit_group(0)               = ?
[pid 22932] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22932, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22352", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22352", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22352/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22352/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22352/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22352")                        = 0
mkdir("./22353", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22933
./strace-static-x86_64: Process 22933 attached
[pid 22933] set_robust_list(0x55557a32b660, 24) = 0
[pid 22933] chdir("./22353")            = 0
[pid 22933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22933] setpgid(0, 0)               = 0
[pid 22933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22933] write(3, "1000", 4)         = 4
[pid 22933] close(3)                    = 0
[pid 22933] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22933] write(1, "executing program\n", 18executing program
) = 18
[pid 22933] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22933] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22933] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22933] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22933] exit_group(0)               = ?
[pid 22933] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22933, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22353", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22353", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22353/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22353/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22353/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22353")                        = 0
mkdir("./22354", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22934
./strace-static-x86_64: Process 22934 attached
[pid 22934] set_robust_list(0x55557a32b660, 24) = 0
[pid 22934] chdir("./22354")            = 0
[pid 22934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22934] setpgid(0, 0)               = 0
[pid 22934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22934] write(3, "1000", 4)         = 4
[pid 22934] close(3)                    = 0
[pid 22934] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22934] write(1, "executing program\n", 18executing program
) = 18
[pid 22934] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22934] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22934] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22934] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22934] exit_group(0)               = ?
[pid 22934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22934, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22354", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22354", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22354/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22354/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22354/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22354")                        = 0
mkdir("./22355", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22935
./strace-static-x86_64: Process 22935 attached
[pid 22935] set_robust_list(0x55557a32b660, 24) = 0
[pid 22935] chdir("./22355")            = 0
[pid 22935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22935] setpgid(0, 0)               = 0
[pid 22935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22935] write(3, "1000", 4)         = 4
[pid 22935] close(3)                    = 0
[pid 22935] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22935] write(1, "executing program\n", 18executing program
) = 18
[pid 22935] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22935] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22935] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22935] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22935] exit_group(0)               = ?
[pid 22935] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22935, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22355", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22355", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22355/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22355/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22355/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22355")                        = 0
mkdir("./22356", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22936
./strace-static-x86_64: Process 22936 attached
[pid 22936] set_robust_list(0x55557a32b660, 24) = 0
[pid 22936] chdir("./22356")            = 0
[pid 22936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22936] setpgid(0, 0)               = 0
[pid 22936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22936] write(3, "1000", 4)         = 4
[pid 22936] close(3)                    = 0
[pid 22936] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22936] write(1, "executing program\n", 18executing program
) = 18
[pid 22936] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22936] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22936] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22936] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22936] exit_group(0)               = ?
[pid 22936] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22936, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22356", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22356", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22356/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22356/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22356/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22356")                        = 0
mkdir("./22357", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22937
./strace-static-x86_64: Process 22937 attached
[pid 22937] set_robust_list(0x55557a32b660, 24) = 0
[pid 22937] chdir("./22357")            = 0
[pid 22937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22937] setpgid(0, 0)               = 0
[pid 22937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22937] write(3, "1000", 4)         = 4
[pid 22937] close(3)                    = 0
[pid 22937] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22937] write(1, "executing program\n", 18executing program
) = 18
[pid 22937] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22937] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22937] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22937] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22937] exit_group(0)               = ?
[pid 22937] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22937, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22357", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22357", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22357/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22357/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22357/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22357")                        = 0
mkdir("./22358", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22938
./strace-static-x86_64: Process 22938 attached
[pid 22938] set_robust_list(0x55557a32b660, 24) = 0
[pid 22938] chdir("./22358")            = 0
[pid 22938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22938] setpgid(0, 0)               = 0
[pid 22938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22938] write(3, "1000", 4)         = 4
[pid 22938] close(3)                    = 0
[pid 22938] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22938] write(1, "executing program\n", 18) = 18
[pid 22938] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22938] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22938] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22938] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22938] exit_group(0)               = ?
[pid 22938] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22938, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22358", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22358", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22358/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22358/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22358/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22358")                        = 0
mkdir("./22359", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22939 attached
, child_tidptr=0x55557a32b650) = 22939
[pid 22939] set_robust_list(0x55557a32b660, 24) = 0
[pid 22939] chdir("./22359")            = 0
[pid 22939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22939] setpgid(0, 0)               = 0
[pid 22939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22939] write(3, "1000", 4)         = 4
[pid 22939] close(3)                    = 0
[pid 22939] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22939] write(1, "executing program\n", 18executing program
) = 18
[pid 22939] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22939] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22939] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22939] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22939] exit_group(0)               = ?
[pid 22939] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22939, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22359", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22359", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22359/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22359/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22359/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22359")                        = 0
mkdir("./22360", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22940
./strace-static-x86_64: Process 22940 attached
[pid 22940] set_robust_list(0x55557a32b660, 24) = 0
[pid 22940] chdir("./22360")            = 0
[pid 22940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22940] setpgid(0, 0)               = 0
[pid 22940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22940] write(3, "1000", 4)         = 4
[pid 22940] close(3)                    = 0
[pid 22940] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22940] write(1, "executing program\n", 18executing program
) = 18
[pid 22940] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22940] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22940] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22940] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22940] exit_group(0)               = ?
[pid 22940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22940, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22360", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22360", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22360/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22360/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22360/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22360")                        = 0
mkdir("./22361", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22941
./strace-static-x86_64: Process 22941 attached
[pid 22941] set_robust_list(0x55557a32b660, 24) = 0
[pid 22941] chdir("./22361")            = 0
[pid 22941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22941] setpgid(0, 0)               = 0
[pid 22941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22941] write(3, "1000", 4)         = 4
[pid 22941] close(3)                    = 0
[pid 22941] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22941] write(1, "executing program\n", 18) = 18
[pid 22941] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22941] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22941] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22941] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22941] exit_group(0)               = ?
[pid 22941] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22941, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22361", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22361", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22361/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22361/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22361/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22361")                        = 0
mkdir("./22362", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22942
./strace-static-x86_64: Process 22942 attached
[pid 22942] set_robust_list(0x55557a32b660, 24) = 0
[pid 22942] chdir("./22362")            = 0
[pid 22942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22942] setpgid(0, 0)               = 0
[pid 22942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22942] write(3, "1000", 4)         = 4
[pid 22942] close(3)                    = 0
[pid 22942] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22942] write(1, "executing program\n", 18executing program
) = 18
[pid 22942] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22942] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22942] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22942] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22942] exit_group(0)               = ?
[pid 22942] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22942, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22362", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22362", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22362/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22362/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22362/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22362")                        = 0
mkdir("./22363", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22943
./strace-static-x86_64: Process 22943 attached
[pid 22943] set_robust_list(0x55557a32b660, 24) = 0
[pid 22943] chdir("./22363")            = 0
[pid 22943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22943] setpgid(0, 0)               = 0
[pid 22943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22943] write(3, "1000", 4)         = 4
[pid 22943] close(3)                    = 0
[pid 22943] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22943] write(1, "executing program\n", 18) = 18
[pid 22943] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22943] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22943] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22943] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22943] exit_group(0)               = ?
[pid 22943] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22943, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22363", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22363", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22363/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22363/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22363/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22363")                        = 0
mkdir("./22364", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22944
./strace-static-x86_64: Process 22944 attached
[pid 22944] set_robust_list(0x55557a32b660, 24) = 0
[pid 22944] chdir("./22364")            = 0
[pid 22944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22944] setpgid(0, 0)               = 0
[pid 22944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22944] write(3, "1000", 4)         = 4
[pid 22944] close(3)                    = 0
[pid 22944] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22944] write(1, "executing program\n", 18executing program
) = 18
[pid 22944] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22944] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22944] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22944] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22944] exit_group(0)               = ?
[pid 22944] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22364", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22364", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22364/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22364/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22364/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22364")                        = 0
mkdir("./22365", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22945
./strace-static-x86_64: Process 22945 attached
[pid 22945] set_robust_list(0x55557a32b660, 24) = 0
[pid 22945] chdir("./22365")            = 0
[pid 22945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22945] setpgid(0, 0)               = 0
[pid 22945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22945] write(3, "1000", 4)         = 4
[pid 22945] close(3)                    = 0
[pid 22945] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22945] write(1, "executing program\n", 18executing program
) = 18
[pid 22945] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22945] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22945] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22945] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22945] exit_group(0)               = ?
[pid 22945] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22945, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22365", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22365", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22365/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22365/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22365/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22365")                        = 0
mkdir("./22366", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22946 attached
, child_tidptr=0x55557a32b650) = 22946
[pid 22946] set_robust_list(0x55557a32b660, 24) = 0
[pid 22946] chdir("./22366")            = 0
[pid 22946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22946] setpgid(0, 0)               = 0
[pid 22946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22946] write(3, "1000", 4)         = 4
[pid 22946] close(3)                    = 0
[pid 22946] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22946] write(1, "executing program\n", 18executing program
) = 18
[pid 22946] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22946] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22946] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22946] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22946] exit_group(0)               = ?
[pid 22946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22946, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22366", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22366", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22366/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22366/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22366/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22366")                        = 0
mkdir("./22367", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22947 attached
, child_tidptr=0x55557a32b650) = 22947
[pid 22947] set_robust_list(0x55557a32b660, 24) = 0
[pid 22947] chdir("./22367")            = 0
[pid 22947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22947] setpgid(0, 0)               = 0
[pid 22947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22947] write(3, "1000", 4)         = 4
[pid 22947] close(3)                    = 0
[pid 22947] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22947] write(1, "executing program\n", 18executing program
) = 18
[pid 22947] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22947] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22947] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22947] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22947] exit_group(0)               = ?
[pid 22947] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22947, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22367", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22367", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22367/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22367/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22367/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22367")                        = 0
mkdir("./22368", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22948
./strace-static-x86_64: Process 22948 attached
[pid 22948] set_robust_list(0x55557a32b660, 24) = 0
[pid 22948] chdir("./22368")            = 0
[pid 22948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22948] setpgid(0, 0)               = 0
[pid 22948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22948] write(3, "1000", 4)         = 4
[pid 22948] close(3)                    = 0
[pid 22948] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22948] write(1, "executing program\n", 18executing program
) = 18
[pid 22948] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22948] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22948] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22948] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22948] exit_group(0)               = ?
[pid 22948] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22948, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22368", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22368", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22368/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22368/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22368/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22368")                        = 0
mkdir("./22369", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22949
./strace-static-x86_64: Process 22949 attached
[pid 22949] set_robust_list(0x55557a32b660, 24) = 0
[pid 22949] chdir("./22369")            = 0
[pid 22949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22949] setpgid(0, 0)               = 0
[pid 22949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22949] write(3, "1000", 4)         = 4
[pid 22949] close(3)                    = 0
[pid 22949] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22949] write(1, "executing program\n", 18) = 18
[pid 22949] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22949] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22949] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22949] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22949] exit_group(0)               = ?
[pid 22949] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22949, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22369", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22369", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22369/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22369/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22369/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22369")                        = 0
mkdir("./22370", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22950 attached
, child_tidptr=0x55557a32b650) = 22950
[pid 22950] set_robust_list(0x55557a32b660, 24) = 0
[pid 22950] chdir("./22370")            = 0
[pid 22950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22950] setpgid(0, 0)               = 0
[pid 22950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22950] write(3, "1000", 4)         = 4
[pid 22950] close(3)                    = 0
[pid 22950] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22950] write(1, "executing program\n", 18executing program
) = 18
[pid 22950] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22950] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22950] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22950] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22950] exit_group(0)               = ?
[pid 22950] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22950, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22370", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22370", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22370/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22370/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22370/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22370")                        = 0
mkdir("./22371", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22951
./strace-static-x86_64: Process 22951 attached
[pid 22951] set_robust_list(0x55557a32b660, 24) = 0
[pid 22951] chdir("./22371")            = 0
[pid 22951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22951] setpgid(0, 0)               = 0
[pid 22951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22951] write(3, "1000", 4)         = 4
[pid 22951] close(3)                    = 0
[pid 22951] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22951] write(1, "executing program\n", 18executing program
) = 18
[pid 22951] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22951] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22951] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22951] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22951] exit_group(0)               = ?
[pid 22951] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22951, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22371", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22371", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22371/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22371/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22371/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22371")                        = 0
mkdir("./22372", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22952 attached
, child_tidptr=0x55557a32b650) = 22952
[pid 22952] set_robust_list(0x55557a32b660, 24) = 0
[pid 22952] chdir("./22372")            = 0
[pid 22952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22952] setpgid(0, 0)               = 0
[pid 22952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22952] write(3, "1000", 4)         = 4
[pid 22952] close(3)                    = 0
[pid 22952] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22952] write(1, "executing program\n", 18executing program
) = 18
[pid 22952] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22952] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22952] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22952] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22952] exit_group(0)               = ?
[pid 22952] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22952, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22372", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22372", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22372/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22372/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22372/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22372")                        = 0
mkdir("./22373", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22953
./strace-static-x86_64: Process 22953 attached
[pid 22953] set_robust_list(0x55557a32b660, 24) = 0
[pid 22953] chdir("./22373")            = 0
[pid 22953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22953] setpgid(0, 0)               = 0
[pid 22953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22953] write(3, "1000", 4)         = 4
[pid 22953] close(3)                    = 0
[pid 22953] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22953] write(1, "executing program\n", 18executing program
) = 18
[pid 22953] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22953] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22953] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22953] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22953] exit_group(0)               = ?
[pid 22953] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22953, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22373", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22373", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22373/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22373/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22373/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22373")                        = 0
mkdir("./22374", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22954
./strace-static-x86_64: Process 22954 attached
[pid 22954] set_robust_list(0x55557a32b660, 24) = 0
[pid 22954] chdir("./22374")            = 0
[pid 22954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22954] setpgid(0, 0)               = 0
[pid 22954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22954] write(3, "1000", 4)         = 4
[pid 22954] close(3)                    = 0
[pid 22954] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22954] write(1, "executing program\n", 18executing program
) = 18
[pid 22954] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22954] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22954] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22954] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22954] exit_group(0)               = ?
[pid 22954] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22954, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22374", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22374", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22374/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22374/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22374/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22374")                        = 0
mkdir("./22375", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22955
./strace-static-x86_64: Process 22955 attached
[pid 22955] set_robust_list(0x55557a32b660, 24) = 0
[pid 22955] chdir("./22375")            = 0
[pid 22955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22955] setpgid(0, 0)               = 0
[pid 22955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22955] write(3, "1000", 4)         = 4
[pid 22955] close(3)                    = 0
[pid 22955] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22955] write(1, "executing program\n", 18executing program
) = 18
[pid 22955] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22955] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22955] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22955] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22955] exit_group(0)               = ?
[pid 22955] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22955, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22375", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22375", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22375/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22375/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22375/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22375")                        = 0
mkdir("./22376", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22956
./strace-static-x86_64: Process 22956 attached
[pid 22956] set_robust_list(0x55557a32b660, 24) = 0
[pid 22956] chdir("./22376")            = 0
[pid 22956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22956] setpgid(0, 0)               = 0
[pid 22956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22956] write(3, "1000", 4)         = 4
[pid 22956] close(3)                    = 0
[pid 22956] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22956] write(1, "executing program\n", 18executing program
) = 18
[pid 22956] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22956] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22956] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22956] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22956] exit_group(0)               = ?
[pid 22956] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22956, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22376", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22376", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22376/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22376/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22376/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22376")                        = 0
mkdir("./22377", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22957
./strace-static-x86_64: Process 22957 attached
[pid 22957] set_robust_list(0x55557a32b660, 24) = 0
[pid 22957] chdir("./22377")            = 0
[pid 22957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22957] setpgid(0, 0)               = 0
[pid 22957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22957] write(3, "1000", 4)         = 4
[pid 22957] close(3)                    = 0
[pid 22957] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22957] write(1, "executing program\n", 18executing program
) = 18
[pid 22957] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22957] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22957] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22957] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22957] exit_group(0)               = ?
[pid 22957] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22957, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22377", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22377", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22377/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22377/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22377/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22377")                        = 0
mkdir("./22378", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22958
./strace-static-x86_64: Process 22958 attached
[pid 22958] set_robust_list(0x55557a32b660, 24) = 0
[pid 22958] chdir("./22378")            = 0
[pid 22958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22958] setpgid(0, 0)               = 0
[pid 22958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22958] write(3, "1000", 4)         = 4
[pid 22958] close(3)                    = 0
[pid 22958] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22958] write(1, "executing program\n", 18) = 18
[pid 22958] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22958] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22958] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22958] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22958] exit_group(0)               = ?
[pid 22958] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22958, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22378", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22378", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22378/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22378/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22378/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22378")                        = 0
mkdir("./22379", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22959 attached
, child_tidptr=0x55557a32b650) = 22959
[pid 22959] set_robust_list(0x55557a32b660, 24) = 0
[pid 22959] chdir("./22379")            = 0
[pid 22959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22959] setpgid(0, 0)               = 0
[pid 22959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22959] write(3, "1000", 4)         = 4
[pid 22959] close(3)                    = 0
[pid 22959] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22959] write(1, "executing program\n", 18executing program
) = 18
[pid 22959] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22959] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22959] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22959] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22959] exit_group(0)               = ?
[pid 22959] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22959, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22379", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22379", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22379/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22379/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22379/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22379")                        = 0
mkdir("./22380", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22960 attached
, child_tidptr=0x55557a32b650) = 22960
[pid 22960] set_robust_list(0x55557a32b660, 24) = 0
[pid 22960] chdir("./22380")            = 0
[pid 22960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22960] setpgid(0, 0)               = 0
[pid 22960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22960] write(3, "1000", 4)         = 4
[pid 22960] close(3)                    = 0
[pid 22960] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22960] write(1, "executing program\n", 18executing program
) = 18
[pid 22960] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22960] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22960] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22960] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22960] exit_group(0)               = ?
[pid 22960] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22960, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22380", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22380", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22380/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22380/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22380/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22380")                        = 0
mkdir("./22381", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22961 attached
, child_tidptr=0x55557a32b650) = 22961
[pid 22961] set_robust_list(0x55557a32b660, 24) = 0
[pid 22961] chdir("./22381")            = 0
[pid 22961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22961] setpgid(0, 0)               = 0
[pid 22961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22961] write(3, "1000", 4)         = 4
[pid 22961] close(3)                    = 0
[pid 22961] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22961] write(1, "executing program\n", 18executing program
) = 18
[pid 22961] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22961] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22961] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22961] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22961] exit_group(0)               = ?
[pid 22961] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22961, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22381", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22381", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22381/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22381/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22381/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22381")                        = 0
mkdir("./22382", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22962
./strace-static-x86_64: Process 22962 attached
[pid 22962] set_robust_list(0x55557a32b660, 24) = 0
[pid 22962] chdir("./22382")            = 0
[pid 22962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22962] setpgid(0, 0)               = 0
[pid 22962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22962] write(3, "1000", 4)         = 4
[pid 22962] close(3)                    = 0
[pid 22962] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22962] write(1, "executing program\n", 18executing program
) = 18
[pid 22962] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22962] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22962] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22962] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22962] exit_group(0)               = ?
[pid 22962] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22962, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22382", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22382", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22382/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22382/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22382/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22382")                        = 0
mkdir("./22383", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22963
./strace-static-x86_64: Process 22963 attached
[pid 22963] set_robust_list(0x55557a32b660, 24) = 0
[pid 22963] chdir("./22383")            = 0
[pid 22963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22963] setpgid(0, 0)               = 0
[pid 22963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22963] write(3, "1000", 4)         = 4
[pid 22963] close(3)                    = 0
[pid 22963] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 22963] write(1, "executing program\n", 18) = 18
[pid 22963] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22963] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22963] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22963] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22963] exit_group(0)               = ?
[pid 22963] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22963, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22383", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22383", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22383/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22383/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22383/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22383")                        = 0
mkdir("./22384", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22964
./strace-static-x86_64: Process 22964 attached
[pid 22964] set_robust_list(0x55557a32b660, 24) = 0
[pid 22964] chdir("./22384")            = 0
[pid 22964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22964] setpgid(0, 0)               = 0
[pid 22964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22964] write(3, "1000", 4)         = 4
[pid 22964] close(3)                    = 0
[pid 22964] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22964] write(1, "executing program\n", 18executing program
) = 18
[pid 22964] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22964] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22964] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22964] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22964] exit_group(0)               = ?
[pid 22964] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22964, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22384", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22384", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22384/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22384/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22384/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22384")                        = 0
mkdir("./22385", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22965
./strace-static-x86_64: Process 22965 attached
[pid 22965] set_robust_list(0x55557a32b660, 24) = 0
[pid 22965] chdir("./22385")            = 0
[pid 22965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22965] setpgid(0, 0)               = 0
[pid 22965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22965] write(3, "1000", 4)         = 4
[pid 22965] close(3)                    = 0
[pid 22965] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22965] write(1, "executing program\n", 18executing program
) = 18
[pid 22965] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22965] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22965] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22965] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22965] exit_group(0)               = ?
[pid 22965] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22965, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22385", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22385", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22385/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22385/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22385/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22385")                        = 0
mkdir("./22386", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22966 attached
, child_tidptr=0x55557a32b650) = 22966
[pid 22966] set_robust_list(0x55557a32b660, 24) = 0
[pid 22966] chdir("./22386")            = 0
[pid 22966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22966] setpgid(0, 0)               = 0
[pid 22966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22966] write(3, "1000", 4)         = 4
[pid 22966] close(3)                    = 0
[pid 22966] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22966] write(1, "executing program\n", 18executing program
) = 18
[pid 22966] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22966] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22966] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22966] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22966] exit_group(0)               = ?
[pid 22966] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22966, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22386", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22386", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22386/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22386/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22386/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22386")                        = 0
mkdir("./22387", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22967 attached
, child_tidptr=0x55557a32b650) = 22967
[pid 22967] set_robust_list(0x55557a32b660, 24) = 0
[pid 22967] chdir("./22387")            = 0
[pid 22967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22967] setpgid(0, 0)               = 0
[pid 22967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22967] write(3, "1000", 4)         = 4
[pid 22967] close(3)                    = 0
[pid 22967] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22967] write(1, "executing program\n", 18executing program
) = 18
[pid 22967] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22967] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22967] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22967] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22967] exit_group(0)               = ?
[pid 22967] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22967, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22387", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22387", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22387/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22387/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22387/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22387")                        = 0
mkdir("./22388", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22968 attached
, child_tidptr=0x55557a32b650) = 22968
[pid 22968] set_robust_list(0x55557a32b660, 24) = 0
[pid 22968] chdir("./22388")            = 0
[pid 22968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22968] setpgid(0, 0)               = 0
[pid 22968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22968] write(3, "1000", 4)         = 4
[pid 22968] close(3)                    = 0
[pid 22968] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22968] write(1, "executing program\n", 18executing program
) = 18
[pid 22968] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22968] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22968] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22968] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22968] exit_group(0)               = ?
[pid 22968] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22968, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22388", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22388", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22388/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22388/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22388/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22388")                        = 0
mkdir("./22389", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22969 attached
, child_tidptr=0x55557a32b650) = 22969
[pid 22969] set_robust_list(0x55557a32b660, 24) = 0
[pid 22969] chdir("./22389")            = 0
[pid 22969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22969] setpgid(0, 0)               = 0
[pid 22969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22969] write(3, "1000", 4)         = 4
[pid 22969] close(3)                    = 0
[pid 22969] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22969] write(1, "executing program\n", 18executing program
) = 18
[pid 22969] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22969] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22969] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22969] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22969] exit_group(0)               = ?
[pid 22969] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22969, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22389", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22389", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22389/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22389/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22389/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22389")                        = 0
mkdir("./22390", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22970
./strace-static-x86_64: Process 22970 attached
[pid 22970] set_robust_list(0x55557a32b660, 24) = 0
[pid 22970] chdir("./22390")            = 0
[pid 22970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22970] setpgid(0, 0)               = 0
[pid 22970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22970] write(3, "1000", 4)         = 4
[pid 22970] close(3)                    = 0
[pid 22970] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22970] write(1, "executing program\n", 18executing program
) = 18
[pid 22970] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22970] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22970] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22970] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22970] exit_group(0)               = ?
[pid 22970] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22970, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22390", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22390", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22390/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22390/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22390/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22390")                        = 0
mkdir("./22391", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22971 attached
, child_tidptr=0x55557a32b650) = 22971
[pid 22971] set_robust_list(0x55557a32b660, 24) = 0
[pid 22971] chdir("./22391")            = 0
[pid 22971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22971] setpgid(0, 0)               = 0
[pid 22971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22971] write(3, "1000", 4)         = 4
[pid 22971] close(3)                    = 0
[pid 22971] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22971] write(1, "executing program\n", 18executing program
) = 18
[pid 22971] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22971] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22971] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22971] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22971] exit_group(0)               = ?
[pid 22971] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22971, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22391", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22391", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22391/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22391/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22391/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22391")                        = 0
mkdir("./22392", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22972
./strace-static-x86_64: Process 22972 attached
[pid 22972] set_robust_list(0x55557a32b660, 24) = 0
[pid 22972] chdir("./22392")            = 0
[pid 22972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22972] setpgid(0, 0)               = 0
[pid 22972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22972] write(3, "1000", 4)         = 4
[pid 22972] close(3)                    = 0
[pid 22972] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22972] write(1, "executing program\n", 18executing program
) = 18
[pid 22972] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22972] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22972] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22972] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22972] exit_group(0)               = ?
[pid 22972] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22972, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22392", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22392", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22392/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22392/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22392/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22392")                        = 0
mkdir("./22393", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22973
./strace-static-x86_64: Process 22973 attached
[pid 22973] set_robust_list(0x55557a32b660, 24) = 0
[pid 22973] chdir("./22393")            = 0
[pid 22973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22973] setpgid(0, 0)               = 0
[pid 22973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22973] write(3, "1000", 4)         = 4
[pid 22973] close(3)                    = 0
[pid 22973] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22973] write(1, "executing program\n", 18executing program
) = 18
[pid 22973] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22973] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22973] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22973] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22973] exit_group(0)               = ?
[pid 22973] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22973, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22393", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22393", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22393/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22393/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22393/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22393")                        = 0
mkdir("./22394", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22974
./strace-static-x86_64: Process 22974 attached
[pid 22974] set_robust_list(0x55557a32b660, 24) = 0
[pid 22974] chdir("./22394")            = 0
[pid 22974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22974] setpgid(0, 0)               = 0
[pid 22974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22974] write(3, "1000", 4)         = 4
[pid 22974] close(3)                    = 0
[pid 22974] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22974] write(1, "executing program\n", 18) = 18
[pid 22974] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22974] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22974] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22974] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22974] exit_group(0)               = ?
[pid 22974] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22974, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22394", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22394", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22394/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22394/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22394/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22394")                        = 0
mkdir("./22395", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22975 attached
, child_tidptr=0x55557a32b650) = 22975
[pid 22975] set_robust_list(0x55557a32b660, 24) = 0
[pid 22975] chdir("./22395")            = 0
[pid 22975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22975] setpgid(0, 0)               = 0
[pid 22975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22975] write(3, "1000", 4)         = 4
[pid 22975] close(3)                    = 0
[pid 22975] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22975] write(1, "executing program\n", 18executing program
) = 18
[pid 22975] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22975] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22975] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22975] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22975] exit_group(0)               = ?
[pid 22975] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22975, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22395", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22395", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22395/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22395/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22395/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22395")                        = 0
mkdir("./22396", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22977
./strace-static-x86_64: Process 22977 attached
[pid 22977] set_robust_list(0x55557a32b660, 24) = 0
[pid 22977] chdir("./22396")            = 0
[pid 22977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22977] setpgid(0, 0)               = 0
[pid 22977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22977] write(3, "1000", 4)         = 4
[pid 22977] close(3)                    = 0
[pid 22977] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22977] write(1, "executing program\n", 18) = 18
[pid 22977] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22977] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22977] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22977] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22977] exit_group(0)               = ?
[pid 22977] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22977, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22396", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22396", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22396/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22396/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22396/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22396")                        = 0
mkdir("./22397", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22978 attached
, child_tidptr=0x55557a32b650) = 22978
[pid 22978] set_robust_list(0x55557a32b660, 24) = 0
[pid 22978] chdir("./22397")            = 0
[pid 22978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22978] setpgid(0, 0)               = 0
[pid 22978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22978] write(3, "1000", 4)         = 4
[pid 22978] close(3)                    = 0
[pid 22978] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22978] write(1, "executing program\n", 18executing program
) = 18
[pid 22978] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22978] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22978] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22978] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22978] exit_group(0)               = ?
[pid 22978] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22978, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22397", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22397", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22397/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22397/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22397/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22397")                        = 0
mkdir("./22398", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22979
./strace-static-x86_64: Process 22979 attached
[pid 22979] set_robust_list(0x55557a32b660, 24) = 0
[pid 22979] chdir("./22398")            = 0
[pid 22979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22979] setpgid(0, 0)               = 0
[pid 22979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22979] write(3, "1000", 4)         = 4
[pid 22979] close(3)                    = 0
[pid 22979] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22979] write(1, "executing program\n", 18) = 18
[pid 22979] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22979] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22979] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22979] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22979] exit_group(0)               = ?
[pid 22979] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22979, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22398", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22398", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22398/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22398/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22398/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22398")                        = 0
mkdir("./22399", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22980
./strace-static-x86_64: Process 22980 attached
[pid 22980] set_robust_list(0x55557a32b660, 24) = 0
[pid 22980] chdir("./22399")            = 0
[pid 22980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22980] setpgid(0, 0)               = 0
[pid 22980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22980] write(3, "1000", 4)         = 4
[pid 22980] close(3)                    = 0
[pid 22980] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22980] write(1, "executing program\n", 18) = 18
[pid 22980] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22980] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22980] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22980] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22980] exit_group(0)               = ?
[pid 22980] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22980, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22399", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22399", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22399/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22399/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22399/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22399")                        = 0
mkdir("./22400", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22981
./strace-static-x86_64: Process 22981 attached
[pid 22981] set_robust_list(0x55557a32b660, 24) = 0
[pid 22981] chdir("./22400")            = 0
[pid 22981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22981] setpgid(0, 0)               = 0
[pid 22981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22981] write(3, "1000", 4)         = 4
[pid 22981] close(3)                    = 0
[pid 22981] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22981] write(1, "executing program\n", 18) = 18
[pid 22981] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22981] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22981] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22981] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22981] exit_group(0)               = ?
[pid 22981] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22981, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22400", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22400", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22400/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22400/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22400/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22400")                        = 0
mkdir("./22401", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22982 attached
, child_tidptr=0x55557a32b650) = 22982
[pid 22982] set_robust_list(0x55557a32b660, 24) = 0
[pid 22982] chdir("./22401")            = 0
[pid 22982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22982] setpgid(0, 0)               = 0
[pid 22982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22982] write(3, "1000", 4)         = 4
[pid 22982] close(3)                    = 0
[pid 22982] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22982] write(1, "executing program\n", 18executing program
) = 18
[pid 22982] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22982] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22982] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22982] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22982] exit_group(0)               = ?
[pid 22982] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22982, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22401", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22401", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22401/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22401/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22401/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22401")                        = 0
mkdir("./22402", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22983 attached
, child_tidptr=0x55557a32b650) = 22983
[pid 22983] set_robust_list(0x55557a32b660, 24) = 0
[pid 22983] chdir("./22402")            = 0
[pid 22983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22983] setpgid(0, 0)               = 0
[pid 22983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22983] write(3, "1000", 4)         = 4
[pid 22983] close(3)                    = 0
[pid 22983] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22983] write(1, "executing program\n", 18executing program
) = 18
[pid 22983] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22983] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22983] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22983] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22983] exit_group(0)               = ?
[pid 22983] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22983, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22402", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22402", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22402/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22402/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22402/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22402")                        = 0
mkdir("./22403", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22984
./strace-static-x86_64: Process 22984 attached
[pid 22984] set_robust_list(0x55557a32b660, 24) = 0
[pid 22984] chdir("./22403")            = 0
[pid 22984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22984] setpgid(0, 0)               = 0
[pid 22984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22984] write(3, "1000", 4)         = 4
[pid 22984] close(3)                    = 0
[pid 22984] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22984] write(1, "executing program\n", 18executing program
) = 18
[pid 22984] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22984] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22984] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22984] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22984] exit_group(0)               = ?
[pid 22984] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22984, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22403", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22403", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22403/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22403/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22403/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22403")                        = 0
mkdir("./22404", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22985
./strace-static-x86_64: Process 22985 attached
[pid 22985] set_robust_list(0x55557a32b660, 24) = 0
[pid 22985] chdir("./22404")            = 0
[pid 22985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22985] setpgid(0, 0)               = 0
[pid 22985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22985] write(3, "1000", 4)         = 4
[pid 22985] close(3)                    = 0
[pid 22985] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22985] write(1, "executing program\n", 18executing program
) = 18
[pid 22985] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22985] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22985] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22985] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22985] exit_group(0)               = ?
[pid 22985] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22985, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22404", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22404", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22404/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22404/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22404/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22404")                        = 0
mkdir("./22405", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22986 attached
, child_tidptr=0x55557a32b650) = 22986
[pid 22986] set_robust_list(0x55557a32b660, 24) = 0
[pid 22986] chdir("./22405")            = 0
[pid 22986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22986] setpgid(0, 0)               = 0
[pid 22986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22986] write(3, "1000", 4)         = 4
[pid 22986] close(3)                    = 0
[pid 22986] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22986] write(1, "executing program\n", 18executing program
) = 18
[pid 22986] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22986] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22986] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22986] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22986] exit_group(0)               = ?
[pid 22986] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22986, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22405", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22405", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22405/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22405/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22405/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22405")                        = 0
mkdir("./22406", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22987
./strace-static-x86_64: Process 22987 attached
[pid 22987] set_robust_list(0x55557a32b660, 24) = 0
[pid 22987] chdir("./22406")            = 0
[pid 22987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22987] setpgid(0, 0)               = 0
[pid 22987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22987] write(3, "1000", 4)         = 4
[pid 22987] close(3)                    = 0
[pid 22987] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22987] write(1, "executing program\n", 18executing program
) = 18
[pid 22987] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22987] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22987] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22987] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22987] exit_group(0)               = ?
[pid 22987] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22987, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22406", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22406", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22406/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22406/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22406/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22406")                        = 0
mkdir("./22407", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22988 attached
, child_tidptr=0x55557a32b650) = 22988
[pid 22988] set_robust_list(0x55557a32b660, 24) = 0
[pid 22988] chdir("./22407")            = 0
[pid 22988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22988] setpgid(0, 0)               = 0
[pid 22988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22988] write(3, "1000", 4)         = 4
[pid 22988] close(3)                    = 0
[pid 22988] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22988] write(1, "executing program\n", 18executing program
) = 18
[pid 22988] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22988] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22988] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22988] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22988] exit_group(0)               = ?
[pid 22988] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22988, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22407", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22407", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22407/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22407/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22407/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22407")                        = 0
mkdir("./22408", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22989
./strace-static-x86_64: Process 22989 attached
[pid 22989] set_robust_list(0x55557a32b660, 24) = 0
[pid 22989] chdir("./22408")            = 0
[pid 22989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22989] setpgid(0, 0)               = 0
[pid 22989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22989] write(3, "1000", 4)         = 4
[pid 22989] close(3)                    = 0
[pid 22989] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22989] write(1, "executing program\n", 18executing program
) = 18
[pid 22989] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22989] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22989] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22989] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22989] exit_group(0)               = ?
[pid 22989] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22989, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22408", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22408", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22408/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22408/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22408/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22408")                        = 0
mkdir("./22409", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22990
./strace-static-x86_64: Process 22990 attached
[pid 22990] set_robust_list(0x55557a32b660, 24) = 0
[pid 22990] chdir("./22409")            = 0
[pid 22990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22990] setpgid(0, 0)               = 0
[pid 22990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22990] write(3, "1000", 4)         = 4
[pid 22990] close(3)                    = 0
[pid 22990] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22990] write(1, "executing program\n", 18) = 18
[pid 22990] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22990] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22990] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22990] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22990] exit_group(0)               = ?
[pid 22990] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22990, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22409", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22409", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22409/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22409/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22409/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22409")                        = 0
mkdir("./22410", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22991 attached
, child_tidptr=0x55557a32b650) = 22991
[pid 22991] set_robust_list(0x55557a32b660, 24) = 0
[pid 22991] chdir("./22410")            = 0
[pid 22991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22991] setpgid(0, 0)               = 0
[pid 22991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22991] write(3, "1000", 4)         = 4
[pid 22991] close(3)                    = 0
[pid 22991] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22991] write(1, "executing program\n", 18executing program
) = 18
[pid 22991] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22991] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22991] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22991] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22991] exit_group(0)               = ?
[pid 22991] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22991, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22410", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22410", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22410/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22410/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22410/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22410")                        = 0
mkdir("./22411", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22992
./strace-static-x86_64: Process 22992 attached
[pid 22992] set_robust_list(0x55557a32b660, 24) = 0
[pid 22992] chdir("./22411")            = 0
[pid 22992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22992] setpgid(0, 0)               = 0
[pid 22992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22992] write(3, "1000", 4)         = 4
[pid 22992] close(3)                    = 0
[pid 22992] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22992] write(1, "executing program\n", 18) = 18
[pid 22992] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22992] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22992] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22992] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22992] exit_group(0)               = ?
[pid 22992] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22992, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22411", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22411", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22411/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22411/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22411/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22411")                        = 0
mkdir("./22412", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22993
./strace-static-x86_64: Process 22993 attached
[pid 22993] set_robust_list(0x55557a32b660, 24) = 0
[pid 22993] chdir("./22412")            = 0
[pid 22993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22993] setpgid(0, 0)               = 0
[pid 22993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22993] write(3, "1000", 4)         = 4
[pid 22993] close(3)                    = 0
[pid 22993] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22993] write(1, "executing program\n", 18executing program
) = 18
[pid 22993] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22993] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22993] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22993] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22993] exit_group(0)               = ?
[pid 22993] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22993, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22412", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22412", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22412/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22412/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22412/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22412")                        = 0
mkdir("./22413", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22994 attached
, child_tidptr=0x55557a32b650) = 22994
[pid 22994] set_robust_list(0x55557a32b660, 24) = 0
[pid 22994] chdir("./22413")            = 0
[pid 22994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22994] setpgid(0, 0)               = 0
[pid 22994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22994] write(3, "1000", 4)         = 4
[pid 22994] close(3)                    = 0
[pid 22994] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22994] write(1, "executing program\n", 18executing program
) = 18
[pid 22994] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22994] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22994] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22994] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22994] exit_group(0)               = ?
[pid 22994] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22994, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22413", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22413", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22413/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22413/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22413/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22413")                        = 0
mkdir("./22414", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22995
./strace-static-x86_64: Process 22995 attached
[pid 22995] set_robust_list(0x55557a32b660, 24) = 0
[pid 22995] chdir("./22414")            = 0
[pid 22995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22995] setpgid(0, 0)               = 0
[pid 22995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22995] write(3, "1000", 4)         = 4
[pid 22995] close(3)                    = 0
[pid 22995] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 22995] write(1, "executing program\n", 18) = 18
[pid 22995] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22995] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22995] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22995] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22995] exit_group(0)               = ?
[pid 22995] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22995, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22414", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22414", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22414/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22414/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22414/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22414")                        = 0
mkdir("./22415", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 22996 attached
, child_tidptr=0x55557a32b650) = 22996
[pid 22996] set_robust_list(0x55557a32b660, 24) = 0
[pid 22996] chdir("./22415")            = 0
[pid 22996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22996] setpgid(0, 0)               = 0
[pid 22996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22996] write(3, "1000", 4)         = 4
[pid 22996] close(3)                    = 0
[pid 22996] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22996] write(1, "executing program\n", 18executing program
) = 18
[pid 22996] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22996] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22996] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22996] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22996] exit_group(0)               = ?
[pid 22996] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22996, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22415", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22415", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22415/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22415/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22415/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22415")                        = 0
mkdir("./22416", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22997
./strace-static-x86_64: Process 22997 attached
[pid 22997] set_robust_list(0x55557a32b660, 24) = 0
[pid 22997] chdir("./22416")            = 0
[pid 22997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22997] setpgid(0, 0)               = 0
[pid 22997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22997] write(3, "1000", 4)         = 4
[pid 22997] close(3)                    = 0
[pid 22997] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22997] write(1, "executing program\n", 18executing program
) = 18
[pid 22997] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22997] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22997] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22997] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22997] exit_group(0)               = ?
[pid 22997] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22997, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22416", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22416", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22416/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22416/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22416/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22416")                        = 0
mkdir("./22417", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22998
./strace-static-x86_64: Process 22998 attached
[pid 22998] set_robust_list(0x55557a32b660, 24) = 0
[pid 22998] chdir("./22417")            = 0
[pid 22998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22998] setpgid(0, 0)               = 0
[pid 22998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22998] write(3, "1000", 4)         = 4
[pid 22998] close(3)                    = 0
[pid 22998] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22998] write(1, "executing program\n", 18executing program
) = 18
[pid 22998] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22998] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22998] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22998] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22998] exit_group(0)               = ?
[pid 22998] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22998, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22417", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22417", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22417/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22417/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22417/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22417")                        = 0
mkdir("./22418", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 22999
./strace-static-x86_64: Process 22999 attached
[pid 22999] set_robust_list(0x55557a32b660, 24) = 0
[pid 22999] chdir("./22418")            = 0
[pid 22999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 22999] setpgid(0, 0)               = 0
[pid 22999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 22999] write(3, "1000", 4)         = 4
[pid 22999] close(3)                    = 0
[pid 22999] symlink("/dev/binderfs", "./binderfs") = 0
[pid 22999] write(1, "executing program\n", 18executing program
) = 18
[pid 22999] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 22999] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 22999] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 22999] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 22999] exit_group(0)               = ?
[pid 22999] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22999, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22418", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22418", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22418/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22418/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22418/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22418")                        = 0
mkdir("./22419", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23000 attached
, child_tidptr=0x55557a32b650) = 23000
[pid 23000] set_robust_list(0x55557a32b660, 24) = 0
[pid 23000] chdir("./22419")            = 0
[pid 23000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23000] setpgid(0, 0)               = 0
[pid 23000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23000] write(3, "1000", 4)         = 4
[pid 23000] close(3)                    = 0
[pid 23000] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23000] write(1, "executing program\n", 18executing program
) = 18
[pid 23000] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23000] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23000] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23000] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23000] exit_group(0)               = ?
[pid 23000] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23000, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22419", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22419", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22419/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22419/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22419/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22419")                        = 0
mkdir("./22420", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23001 attached
, child_tidptr=0x55557a32b650) = 23001
[pid 23001] set_robust_list(0x55557a32b660, 24) = 0
[pid 23001] chdir("./22420")            = 0
[pid 23001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23001] setpgid(0, 0)               = 0
[pid 23001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23001] write(3, "1000", 4)         = 4
[pid 23001] close(3)                    = 0
[pid 23001] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23001] write(1, "executing program\n", 18executing program
) = 18
[pid 23001] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23001] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23001] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23001] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23001] exit_group(0)               = ?
[pid 23001] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23001, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22420", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22420", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22420/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22420/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22420/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22420")                        = 0
mkdir("./22421", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23002
./strace-static-x86_64: Process 23002 attached
[pid 23002] set_robust_list(0x55557a32b660, 24) = 0
[pid 23002] chdir("./22421")            = 0
[pid 23002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23002] setpgid(0, 0)               = 0
[pid 23002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23002] write(3, "1000", 4)         = 4
[pid 23002] close(3)                    = 0
[pid 23002] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23002] write(1, "executing program\n", 18executing program
) = 18
[pid 23002] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23002] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23002] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23002] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23002] exit_group(0)               = ?
[pid 23002] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23002, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22421", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22421", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22421/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22421/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22421/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22421")                        = 0
mkdir("./22422", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23003
./strace-static-x86_64: Process 23003 attached
[pid 23003] set_robust_list(0x55557a32b660, 24) = 0
[pid 23003] chdir("./22422")            = 0
[pid 23003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23003] setpgid(0, 0)               = 0
[pid 23003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23003] write(3, "1000", 4)         = 4
[pid 23003] close(3)                    = 0
[pid 23003] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23003] write(1, "executing program\n", 18executing program
) = 18
[pid 23003] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23003] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23003] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23003] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23003] exit_group(0)               = ?
[pid 23003] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23003, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22422", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22422", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22422/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22422/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22422/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22422")                        = 0
mkdir("./22423", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23004 attached
 <unfinished ...>
[pid 23004] set_robust_list(0x55557a32b660, 24 <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23004
[pid 23004] <... set_robust_list resumed>) = 0
[pid 23004] chdir("./22423")            = 0
[pid 23004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23004] setpgid(0, 0)               = 0
[pid 23004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23004] write(3, "1000", 4)         = 4
[pid 23004] close(3)                    = 0
[pid 23004] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23004] write(1, "executing program\n", 18) = 18
[pid 23004] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23004] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23004] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23004] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23004] exit_group(0)               = ?
[pid 23004] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23004, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22423", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22423", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22423/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22423/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22423/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22423")                        = 0
mkdir("./22424", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23005 attached
, child_tidptr=0x55557a32b650) = 23005
[pid 23005] set_robust_list(0x55557a32b660, 24) = 0
[pid 23005] chdir("./22424")            = 0
[pid 23005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23005] setpgid(0, 0)               = 0
[pid 23005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23005] write(3, "1000", 4)         = 4
[pid 23005] close(3)                    = 0
[pid 23005] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23005] write(1, "executing program\n", 18executing program
) = 18
[pid 23005] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23005] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23005] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23005] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23005] exit_group(0)               = ?
[pid 23005] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23005, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22424", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22424", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22424/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22424/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22424/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22424")                        = 0
mkdir("./22425", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23006
./strace-static-x86_64: Process 23006 attached
[pid 23006] set_robust_list(0x55557a32b660, 24) = 0
[pid 23006] chdir("./22425")            = 0
[pid 23006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23006] setpgid(0, 0)               = 0
[pid 23006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23006] write(3, "1000", 4)         = 4
[pid 23006] close(3)                    = 0
[pid 23006] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23006] write(1, "executing program\n", 18executing program
) = 18
[pid 23006] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23006] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23006] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23006] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23006] exit_group(0)               = ?
[pid 23006] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23006, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22425", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22425", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22425/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22425/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22425/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22425")                        = 0
mkdir("./22426", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23007
./strace-static-x86_64: Process 23007 attached
[pid 23007] set_robust_list(0x55557a32b660, 24) = 0
[pid 23007] chdir("./22426")            = 0
[pid 23007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23007] setpgid(0, 0)               = 0
[pid 23007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23007] write(3, "1000", 4)         = 4
[pid 23007] close(3)                    = 0
[pid 23007] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23007] write(1, "executing program\n", 18) = 18
[pid 23007] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23007] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23007] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23007] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23007] exit_group(0)               = ?
[pid 23007] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23007, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22426", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22426", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22426/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22426/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22426/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22426")                        = 0
mkdir("./22427", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23008
./strace-static-x86_64: Process 23008 attached
[pid 23008] set_robust_list(0x55557a32b660, 24) = 0
[pid 23008] chdir("./22427")            = 0
[pid 23008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23008] setpgid(0, 0)               = 0
[pid 23008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23008] write(3, "1000", 4)         = 4
[pid 23008] close(3)                    = 0
[pid 23008] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23008] write(1, "executing program\n", 18executing program
) = 18
[pid 23008] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23008] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23008] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23008] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23008] exit_group(0)               = ?
[pid 23008] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23008, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22427", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22427", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22427/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22427/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22427/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22427")                        = 0
mkdir("./22428", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23009
./strace-static-x86_64: Process 23009 attached
[pid 23009] set_robust_list(0x55557a32b660, 24) = 0
[pid 23009] chdir("./22428")            = 0
[pid 23009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23009] setpgid(0, 0)               = 0
[pid 23009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23009] write(3, "1000", 4)         = 4
[pid 23009] close(3)                    = 0
[pid 23009] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23009] write(1, "executing program\n", 18) = 18
[pid 23009] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23009] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23009] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23009] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23009] exit_group(0)               = ?
[pid 23009] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23009, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22428", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22428", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22428/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22428/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22428/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22428")                        = 0
mkdir("./22429", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23010 attached
, child_tidptr=0x55557a32b650) = 23010
[pid 23010] set_robust_list(0x55557a32b660, 24) = 0
[pid 23010] chdir("./22429")            = 0
[pid 23010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23010] setpgid(0, 0)               = 0
[pid 23010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23010] write(3, "1000", 4)         = 4
[pid 23010] close(3)                    = 0
[pid 23010] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23010] write(1, "executing program\n", 18executing program
) = 18
[pid 23010] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23010] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23010] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23010] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23010] exit_group(0)               = ?
[pid 23010] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23010, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22429", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22429", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22429/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22429/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22429/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22429")                        = 0
mkdir("./22430", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23011 attached
, child_tidptr=0x55557a32b650) = 23011
[pid 23011] set_robust_list(0x55557a32b660, 24) = 0
[pid 23011] chdir("./22430")            = 0
[pid 23011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23011] setpgid(0, 0)               = 0
[pid 23011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23011] write(3, "1000", 4)         = 4
[pid 23011] close(3)                    = 0
[pid 23011] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23011] write(1, "executing program\n", 18executing program
) = 18
[pid 23011] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23011] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23011] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23011] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23011] exit_group(0)               = ?
[pid 23011] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23011, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22430", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22430", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22430/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22430/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22430/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22430")                        = 0
mkdir("./22431", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23012
./strace-static-x86_64: Process 23012 attached
[pid 23012] set_robust_list(0x55557a32b660, 24) = 0
[pid 23012] chdir("./22431")            = 0
[pid 23012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23012] setpgid(0, 0)               = 0
[pid 23012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23012] write(3, "1000", 4)         = 4
[pid 23012] close(3)                    = 0
[pid 23012] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23012] write(1, "executing program\n", 18) = 18
[pid 23012] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23012] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23012] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23012] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23012] exit_group(0)               = ?
[pid 23012] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23012, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22431", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22431", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22431/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22431/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22431/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22431")                        = 0
mkdir("./22432", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23013
./strace-static-x86_64: Process 23013 attached
[pid 23013] set_robust_list(0x55557a32b660, 24) = 0
[pid 23013] chdir("./22432")            = 0
[pid 23013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23013] setpgid(0, 0)               = 0
[pid 23013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23013] write(3, "1000", 4)         = 4
[pid 23013] close(3)                    = 0
[pid 23013] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23013] write(1, "executing program\n", 18) = 18
[pid 23013] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7executing program
, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23013] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23013] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23013] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23013] exit_group(0)               = ?
[pid 23013] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23013, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22432", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22432", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22432/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22432/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22432/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22432")                        = 0
mkdir("./22433", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23014
./strace-static-x86_64: Process 23014 attached
[pid 23014] set_robust_list(0x55557a32b660, 24) = 0
[pid 23014] chdir("./22433")            = 0
[pid 23014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23014] setpgid(0, 0)               = 0
[pid 23014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23014] write(3, "1000", 4)         = 4
[pid 23014] close(3)                    = 0
[pid 23014] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23014] write(1, "executing program\n", 18executing program
) = 18
[pid 23014] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23014] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23014] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23014] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23014] exit_group(0)               = ?
[pid 23014] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23014, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22433", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22433", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22433/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22433/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22433/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22433")                        = 0
mkdir("./22434", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23015 attached
, child_tidptr=0x55557a32b650) = 23015
[pid 23015] set_robust_list(0x55557a32b660, 24) = 0
[pid 23015] chdir("./22434")            = 0
[pid 23015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23015] setpgid(0, 0)               = 0
[pid 23015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23015] write(3, "1000", 4)         = 4
[pid 23015] close(3)                    = 0
[pid 23015] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23015] write(1, "executing program\n", 18executing program
) = 18
[pid 23015] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23015] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23015] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23015] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23015] exit_group(0)               = ?
[pid 23015] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23015, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22434", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22434", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22434/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22434/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22434/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22434")                        = 0
mkdir("./22435", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23016
./strace-static-x86_64: Process 23016 attached
[pid 23016] set_robust_list(0x55557a32b660, 24) = 0
[pid 23016] chdir("./22435")            = 0
[pid 23016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23016] setpgid(0, 0)               = 0
[pid 23016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23016] write(3, "1000", 4)         = 4
[pid 23016] close(3)                    = 0
[pid 23016] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23016] write(1, "executing program\n", 18executing program
) = 18
[pid 23016] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23016] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23016] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23016] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23016] exit_group(0)               = ?
[pid 23016] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23016, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22435", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22435", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22435/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22435/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22435/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22435")                        = 0
mkdir("./22436", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23017
./strace-static-x86_64: Process 23017 attached
[pid 23017] set_robust_list(0x55557a32b660, 24) = 0
[pid 23017] chdir("./22436")            = 0
[pid 23017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23017] setpgid(0, 0)               = 0
[pid 23017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23017] write(3, "1000", 4)         = 4
[pid 23017] close(3)                    = 0
[pid 23017] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23017] write(1, "executing program\n", 18executing program
) = 18
[pid 23017] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23017] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23017] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23017] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23017] exit_group(0)               = ?
[pid 23017] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23017, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22436", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22436", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22436/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22436/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22436/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22436")                        = 0
mkdir("./22437", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23018 attached
, child_tidptr=0x55557a32b650) = 23018
[pid 23018] set_robust_list(0x55557a32b660, 24) = 0
[pid 23018] chdir("./22437")            = 0
[pid 23018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23018] setpgid(0, 0)               = 0
[pid 23018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23018] write(3, "1000", 4)         = 4
[pid 23018] close(3)                    = 0
[pid 23018] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23018] write(1, "executing program\n", 18executing program
) = 18
[pid 23018] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23018] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23018] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23018] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23018] exit_group(0)               = ?
[pid 23018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23018, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22437", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22437", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22437/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22437/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22437/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22437")                        = 0
mkdir("./22438", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23019 attached
 <unfinished ...>
[pid 23019] set_robust_list(0x55557a32b660, 24) = 0
[pid 23019] chdir("./22438")            = 0
[pid 23019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23019] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23019
[pid 23019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23019] write(3, "1000", 4)         = 4
[pid 23019] close(3)                    = 0
[pid 23019] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23019] write(1, "executing program\n", 18executing program
) = 18
[pid 23019] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23019] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23019] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23019] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23019] exit_group(0)               = ?
[pid 23019] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23019, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22438", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22438", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22438/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22438/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22438/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22438")                        = 0
mkdir("./22439", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23020
./strace-static-x86_64: Process 23020 attached
[pid 23020] set_robust_list(0x55557a32b660, 24) = 0
[pid 23020] chdir("./22439")            = 0
[pid 23020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23020] setpgid(0, 0)               = 0
[pid 23020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23020] write(3, "1000", 4)         = 4
[pid 23020] close(3)                    = 0
[pid 23020] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23020] write(1, "executing program\n", 18) = 18
[pid 23020] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23020] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23020] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23020] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23020] exit_group(0)               = ?
[pid 23020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23020, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22439", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22439", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22439/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22439/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22439/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22439")                        = 0
mkdir("./22440", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23021
./strace-static-x86_64: Process 23021 attached
[pid 23021] set_robust_list(0x55557a32b660, 24) = 0
[pid 23021] chdir("./22440")            = 0
[pid 23021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23021] setpgid(0, 0)               = 0
[pid 23021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23021] write(3, "1000", 4)         = 4
[pid 23021] close(3)                    = 0
[pid 23021] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23021] write(1, "executing program\n", 18) = 18
[pid 23021] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23021] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23021] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23021] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23021] exit_group(0)               = ?
[pid 23021] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23021, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22440", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22440", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22440/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22440/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22440/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22440")                        = 0
mkdir("./22441", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23022 attached
, child_tidptr=0x55557a32b650) = 23022
[pid 23022] set_robust_list(0x55557a32b660, 24) = 0
[pid 23022] chdir("./22441")            = 0
[pid 23022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23022] setpgid(0, 0)               = 0
[pid 23022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23022] write(3, "1000", 4)         = 4
[pid 23022] close(3)                    = 0
[pid 23022] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23022] write(1, "executing program\n", 18executing program
) = 18
[pid 23022] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23022] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23022] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23022] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23022] exit_group(0)               = ?
[pid 23022] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23022, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22441", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22441", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22441/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22441/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22441/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22441")                        = 0
mkdir("./22442", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23023 attached
, child_tidptr=0x55557a32b650) = 23023
[pid 23023] set_robust_list(0x55557a32b660, 24) = 0
[pid 23023] chdir("./22442")            = 0
[pid 23023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23023] setpgid(0, 0)               = 0
[pid 23023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23023] write(3, "1000", 4)         = 4
[pid 23023] close(3)                    = 0
[pid 23023] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23023] write(1, "executing program\n", 18executing program
) = 18
[pid 23023] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23023] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23023] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23023] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23023] exit_group(0)               = ?
[pid 23023] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23023, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22442", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22442", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22442/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22442/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22442/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22442")                        = 0
mkdir("./22443", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23024
./strace-static-x86_64: Process 23024 attached
[pid 23024] set_robust_list(0x55557a32b660, 24) = 0
[pid 23024] chdir("./22443")            = 0
[pid 23024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23024] setpgid(0, 0)               = 0
[pid 23024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23024] write(3, "1000", 4)         = 4
[pid 23024] close(3)                    = 0
[pid 23024] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23024] write(1, "executing program\n", 18executing program
) = 18
[pid 23024] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23024] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23024] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23024] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23024] exit_group(0)               = ?
[pid 23024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23024, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22443", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22443", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22443/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22443/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22443/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22443")                        = 0
mkdir("./22444", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23025
./strace-static-x86_64: Process 23025 attached
[pid 23025] set_robust_list(0x55557a32b660, 24) = 0
[pid 23025] chdir("./22444")            = 0
[pid 23025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23025] setpgid(0, 0)               = 0
[pid 23025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23025] write(3, "1000", 4)         = 4
[pid 23025] close(3)                    = 0
[pid 23025] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23025] write(1, "executing program\n", 18executing program
) = 18
[pid 23025] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23025] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23025] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23025] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23025] exit_group(0)               = ?
[pid 23025] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23025, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22444", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22444", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22444/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22444/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22444/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22444")                        = 0
mkdir("./22445", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23026
./strace-static-x86_64: Process 23026 attached
[pid 23026] set_robust_list(0x55557a32b660, 24) = 0
[pid 23026] chdir("./22445")            = 0
[pid 23026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23026] setpgid(0, 0)               = 0
[pid 23026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23026] write(3, "1000", 4)         = 4
[pid 23026] close(3)                    = 0
[pid 23026] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23026] write(1, "executing program\n", 18executing program
) = 18
[pid 23026] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23026] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23026] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23026] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23026] exit_group(0)               = ?
[pid 23026] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23026, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22445", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22445", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22445/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22445/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22445/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22445")                        = 0
mkdir("./22446", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23027
./strace-static-x86_64: Process 23027 attached
[pid 23027] set_robust_list(0x55557a32b660, 24) = 0
[pid 23027] chdir("./22446")            = 0
[pid 23027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23027] setpgid(0, 0)               = 0
[pid 23027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23027] write(3, "1000", 4)         = 4
[pid 23027] close(3)                    = 0
[pid 23027] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23027] write(1, "executing program\n", 18) = 18
[pid 23027] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23027] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23027] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23027] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23027] exit_group(0)               = ?
[pid 23027] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23027, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22446", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22446", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22446/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22446/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22446/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22446")                        = 0
mkdir("./22447", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23028
./strace-static-x86_64: Process 23028 attached
[pid 23028] set_robust_list(0x55557a32b660, 24) = 0
[pid 23028] chdir("./22447")            = 0
[pid 23028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23028] setpgid(0, 0)               = 0
[pid 23028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23028] write(3, "1000", 4)         = 4
[pid 23028] close(3)                    = 0
[pid 23028] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23028] write(1, "executing program\n", 18executing program
) = 18
[pid 23028] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23028] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23028] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23028] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23028] exit_group(0)               = ?
[pid 23028] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23028, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22447", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22447", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22447/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22447/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22447/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22447")                        = 0
mkdir("./22448", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23029
./strace-static-x86_64: Process 23029 attached
[pid 23029] set_robust_list(0x55557a32b660, 24) = 0
[pid 23029] chdir("./22448")            = 0
[pid 23029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23029] setpgid(0, 0)               = 0
[pid 23029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23029] write(3, "1000", 4)         = 4
[pid 23029] close(3)                    = 0
[pid 23029] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23029] write(1, "executing program\n", 18executing program
) = 18
[pid 23029] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23029] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23029] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23029] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23029] exit_group(0)               = ?
[pid 23029] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23029, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22448", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22448", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22448/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22448/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22448/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22448")                        = 0
mkdir("./22449", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23030
./strace-static-x86_64: Process 23030 attached
[pid 23030] set_robust_list(0x55557a32b660, 24) = 0
[pid 23030] chdir("./22449")            = 0
[pid 23030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23030] setpgid(0, 0)               = 0
[pid 23030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23030] write(3, "1000", 4)         = 4
[pid 23030] close(3)                    = 0
[pid 23030] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23030] write(1, "executing program\n", 18executing program
) = 18
[pid 23030] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23030] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23030] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23030] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23030] exit_group(0)               = ?
[pid 23030] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23030, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22449", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22449", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22449/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22449/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22449/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22449")                        = 0
mkdir("./22450", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23031
./strace-static-x86_64: Process 23031 attached
[pid 23031] set_robust_list(0x55557a32b660, 24) = 0
[pid 23031] chdir("./22450")            = 0
[pid 23031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23031] setpgid(0, 0)               = 0
[pid 23031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23031] write(3, "1000", 4)         = 4
[pid 23031] close(3)                    = 0
[pid 23031] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23031] write(1, "executing program\n", 18executing program
) = 18
[pid 23031] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23031] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23031] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23031] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23031] exit_group(0)               = ?
[pid 23031] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23031, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22450", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22450", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22450/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22450/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22450/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22450")                        = 0
mkdir("./22451", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23032
./strace-static-x86_64: Process 23032 attached
[pid 23032] set_robust_list(0x55557a32b660, 24) = 0
[pid 23032] chdir("./22451")            = 0
[pid 23032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23032] setpgid(0, 0)               = 0
[pid 23032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23032] write(3, "1000", 4)         = 4
[pid 23032] close(3)                    = 0
[pid 23032] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23032] write(1, "executing program\n", 18executing program
) = 18
[pid 23032] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23032] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23032] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23032] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23032] exit_group(0)               = ?
[pid 23032] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23032, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22451", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22451", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22451/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22451/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22451/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22451")                        = 0
mkdir("./22452", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23033 attached
 <unfinished ...>
[pid 23033] set_robust_list(0x55557a32b660, 24) = 0
[pid 23033] chdir("./22452" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23033
[pid 23033] <... chdir resumed>)        = 0
[pid 23033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23033] setpgid(0, 0)               = 0
[pid 23033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23033] write(3, "1000", 4)         = 4
[pid 23033] close(3)                    = 0
[pid 23033] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23033] write(1, "executing program\n", 18executing program
) = 18
[pid 23033] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23033] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23033] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23033] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23033] exit_group(0)               = ?
[pid 23033] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23033, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22452", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22452", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22452/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22452/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22452/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22452")                        = 0
mkdir("./22453", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23034
./strace-static-x86_64: Process 23034 attached
[pid 23034] set_robust_list(0x55557a32b660, 24) = 0
[pid 23034] chdir("./22453")            = 0
[pid 23034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23034] setpgid(0, 0)               = 0
[pid 23034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23034] write(3, "1000", 4)         = 4
[pid 23034] close(3)                    = 0
[pid 23034] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23034] write(1, "executing program\n", 18executing program
) = 18
[pid 23034] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23034] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23034] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23034] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23034] exit_group(0)               = ?
[pid 23034] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23034, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22453", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22453", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22453/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22453/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22453/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22453")                        = 0
mkdir("./22454", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23035
./strace-static-x86_64: Process 23035 attached
[pid 23035] set_robust_list(0x55557a32b660, 24) = 0
[pid 23035] chdir("./22454")            = 0
[pid 23035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23035] setpgid(0, 0)               = 0
[pid 23035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23035] write(3, "1000", 4)         = 4
[pid 23035] close(3)                    = 0
[pid 23035] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23035] write(1, "executing program\n", 18executing program
) = 18
[pid 23035] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23035] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23035] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23035] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23035] exit_group(0)               = ?
[pid 23035] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23035, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22454", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22454", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22454/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22454/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22454/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22454")                        = 0
mkdir("./22455", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23036
./strace-static-x86_64: Process 23036 attached
[pid 23036] set_robust_list(0x55557a32b660, 24) = 0
[pid 23036] chdir("./22455")            = 0
[pid 23036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23036] setpgid(0, 0)               = 0
[pid 23036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23036] write(3, "1000", 4)         = 4
[pid 23036] close(3)                    = 0
[pid 23036] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23036] write(1, "executing program\n", 18executing program
) = 18
[pid 23036] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23036] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23036] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23036] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23036] exit_group(0)               = ?
[pid 23036] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23036, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22455", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22455", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22455/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22455/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22455/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22455")                        = 0
mkdir("./22456", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23037
./strace-static-x86_64: Process 23037 attached
[pid 23037] set_robust_list(0x55557a32b660, 24) = 0
[pid 23037] chdir("./22456")            = 0
[pid 23037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23037] setpgid(0, 0)               = 0
[pid 23037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23037] write(3, "1000", 4)         = 4
[pid 23037] close(3)                    = 0
[pid 23037] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23037] write(1, "executing program\n", 18) = 18
[pid 23037] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23037] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23037] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23037] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23037] exit_group(0)               = ?
[pid 23037] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23037, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22456", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22456", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22456/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22456/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22456/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22456")                        = 0
mkdir("./22457", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23038
./strace-static-x86_64: Process 23038 attached
[pid 23038] set_robust_list(0x55557a32b660, 24) = 0
[pid 23038] chdir("./22457")            = 0
[pid 23038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23038] setpgid(0, 0)               = 0
[pid 23038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23038] write(3, "1000", 4)         = 4
[pid 23038] close(3)                    = 0
[pid 23038] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23038] write(1, "executing program\n", 18) = 18
[pid 23038] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23038] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23038] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23038] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23038] exit_group(0)               = ?
[pid 23038] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23038, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22457", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22457", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22457/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22457/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22457/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22457")                        = 0
mkdir("./22458", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23039
./strace-static-x86_64: Process 23039 attached
[pid 23039] set_robust_list(0x55557a32b660, 24) = 0
[pid 23039] chdir("./22458")            = 0
[pid 23039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23039] setpgid(0, 0)               = 0
[pid 23039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23039] write(3, "1000", 4)         = 4
[pid 23039] close(3)                    = 0
[pid 23039] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23039] write(1, "executing program\n", 18executing program
) = 18
[pid 23039] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23039] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23039] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23039] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23039] exit_group(0)               = ?
[pid 23039] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23039, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22458", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22458", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22458/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22458/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22458/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22458")                        = 0
mkdir("./22459", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23040
./strace-static-x86_64: Process 23040 attached
[pid 23040] set_robust_list(0x55557a32b660, 24) = 0
[pid 23040] chdir("./22459")            = 0
[pid 23040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23040] setpgid(0, 0)               = 0
[pid 23040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23040] write(3, "1000", 4)         = 4
[pid 23040] close(3)                    = 0
[pid 23040] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23040] write(1, "executing program\n", 18executing program
) = 18
[pid 23040] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23040] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23040] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23040] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23040] exit_group(0)               = ?
[pid 23040] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23040, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22459", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22459", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22459/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22459/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22459/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22459")                        = 0
mkdir("./22460", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23041
./strace-static-x86_64: Process 23041 attached
[pid 23041] set_robust_list(0x55557a32b660, 24) = 0
[pid 23041] chdir("./22460")            = 0
[pid 23041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23041] setpgid(0, 0)               = 0
[pid 23041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23041] write(3, "1000", 4)         = 4
[pid 23041] close(3)                    = 0
[pid 23041] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23041] write(1, "executing program\n", 18executing program
) = 18
[pid 23041] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23041] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23041] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23041] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23041] exit_group(0)               = ?
[pid 23041] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23041, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22460", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22460", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22460/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22460/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22460/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22460")                        = 0
mkdir("./22461", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23042
./strace-static-x86_64: Process 23042 attached
[pid 23042] set_robust_list(0x55557a32b660, 24) = 0
[pid 23042] chdir("./22461")            = 0
[pid 23042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23042] setpgid(0, 0)               = 0
[pid 23042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23042] write(3, "1000", 4)         = 4
[pid 23042] close(3)                    = 0
[pid 23042] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23042] write(1, "executing program\n", 18executing program
) = 18
[pid 23042] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23042] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23042] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23042] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23042] exit_group(0)               = ?
[pid 23042] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23042, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22461", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22461", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22461/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22461/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22461/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22461")                        = 0
mkdir("./22462", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23043
./strace-static-x86_64: Process 23043 attached
[pid 23043] set_robust_list(0x55557a32b660, 24) = 0
[pid 23043] chdir("./22462")            = 0
[pid 23043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23043] setpgid(0, 0)               = 0
[pid 23043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23043] write(3, "1000", 4)         = 4
[pid 23043] close(3)                    = 0
[pid 23043] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23043] write(1, "executing program\n", 18executing program
) = 18
[pid 23043] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23043] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23043] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23043] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23043] exit_group(0)               = ?
[pid 23043] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23043, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22462", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22462", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22462/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22462/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22462/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22462")                        = 0
mkdir("./22463", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23044
./strace-static-x86_64: Process 23044 attached
[pid 23044] set_robust_list(0x55557a32b660, 24) = 0
[pid 23044] chdir("./22463")            = 0
[pid 23044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23044] setpgid(0, 0)               = 0
[pid 23044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23044] write(3, "1000", 4)         = 4
[pid 23044] close(3)                    = 0
[pid 23044] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23044] write(1, "executing program\n", 18executing program
) = 18
[pid 23044] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23044] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23044] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23044] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23044] exit_group(0)               = ?
[pid 23044] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23044, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22463", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22463", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22463/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22463/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22463/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22463")                        = 0
mkdir("./22464", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23045
./strace-static-x86_64: Process 23045 attached
[pid 23045] set_robust_list(0x55557a32b660, 24) = 0
[pid 23045] chdir("./22464")            = 0
[pid 23045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23045] setpgid(0, 0)               = 0
[pid 23045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23045] write(3, "1000", 4)         = 4
[pid 23045] close(3)                    = 0
[pid 23045] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23045] write(1, "executing program\n", 18executing program
) = 18
[pid 23045] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23045] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23045] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23045] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23045] exit_group(0)               = ?
[pid 23045] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23045, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22464", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22464", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22464/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22464/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22464/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22464")                        = 0
mkdir("./22465", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23046
./strace-static-x86_64: Process 23046 attached
[pid 23046] set_robust_list(0x55557a32b660, 24) = 0
[pid 23046] chdir("./22465")            = 0
[pid 23046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23046] setpgid(0, 0)               = 0
[pid 23046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23046] write(3, "1000", 4)         = 4
[pid 23046] close(3)                    = 0
[pid 23046] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23046] write(1, "executing program\n", 18executing program
) = 18
[pid 23046] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23046] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23046] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23046] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23046] exit_group(0)               = ?
[pid 23046] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23046, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22465", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22465", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22465/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22465/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22465/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22465")                        = 0
mkdir("./22466", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23047
./strace-static-x86_64: Process 23047 attached
[pid 23047] set_robust_list(0x55557a32b660, 24) = 0
[pid 23047] chdir("./22466")            = 0
[pid 23047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23047] setpgid(0, 0)               = 0
[pid 23047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23047] write(3, "1000", 4)         = 4
[pid 23047] close(3)                    = 0
[pid 23047] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23047] write(1, "executing program\n", 18executing program
) = 18
[pid 23047] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23047] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23047] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23047] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23047] exit_group(0)               = ?
[pid 23047] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23047, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22466", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22466", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22466/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22466/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22466/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22466")                        = 0
mkdir("./22467", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23048
./strace-static-x86_64: Process 23048 attached
[pid 23048] set_robust_list(0x55557a32b660, 24) = 0
[pid 23048] chdir("./22467")            = 0
[pid 23048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23048] setpgid(0, 0)               = 0
[pid 23048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23048] write(3, "1000", 4)         = 4
[pid 23048] close(3)                    = 0
[pid 23048] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23048] write(1, "executing program\n", 18executing program
) = 18
[pid 23048] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23048] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23048] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23048] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23048] exit_group(0)               = ?
[pid 23048] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23048, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22467", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22467", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22467/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22467/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22467/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22467")                        = 0
mkdir("./22468", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23049 attached
, child_tidptr=0x55557a32b650) = 23049
[pid 23049] set_robust_list(0x55557a32b660, 24) = 0
[pid 23049] chdir("./22468")            = 0
[pid 23049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23049] setpgid(0, 0)               = 0
[pid 23049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23049] write(3, "1000", 4)         = 4
[pid 23049] close(3)                    = 0
[pid 23049] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23049] write(1, "executing program\n", 18executing program
) = 18
[pid 23049] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23049] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23049] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23049] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23049] exit_group(0)               = ?
[pid 23049] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23049, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22468", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22468", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22468/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22468/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22468/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22468")                        = 0
mkdir("./22469", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23050
./strace-static-x86_64: Process 23050 attached
[pid 23050] set_robust_list(0x55557a32b660, 24) = 0
[pid 23050] chdir("./22469")            = 0
[pid 23050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23050] setpgid(0, 0)               = 0
[pid 23050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23050] write(3, "1000", 4)         = 4
[pid 23050] close(3)                    = 0
[pid 23050] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23050] write(1, "executing program\n", 18executing program
) = 18
[pid 23050] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23050] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23050] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23050] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23050] exit_group(0)               = ?
[pid 23050] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23050, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22469", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22469", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22469/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22469/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22469/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22469")                        = 0
mkdir("./22470", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23051 attached
, child_tidptr=0x55557a32b650) = 23051
[pid 23051] set_robust_list(0x55557a32b660, 24) = 0
[pid 23051] chdir("./22470")            = 0
[pid 23051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23051] setpgid(0, 0)               = 0
[pid 23051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23051] write(3, "1000", 4)         = 4
[pid 23051] close(3)                    = 0
[pid 23051] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23051] write(1, "executing program\n", 18executing program
) = 18
[pid 23051] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23051] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23051] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23051] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23051] exit_group(0)               = ?
[pid 23051] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23051, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22470", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22470", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22470/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22470/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22470/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22470")                        = 0
mkdir("./22471", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23052 attached
 <unfinished ...>
[pid 23052] set_robust_list(0x55557a32b660, 24) = 0
[pid 23052] chdir("./22471" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23052
[pid 23052] <... chdir resumed>)        = 0
[pid 23052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23052] setpgid(0, 0)               = 0
[pid 23052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23052] write(3, "1000", 4)         = 4
[pid 23052] close(3)                    = 0
[pid 23052] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23052] write(1, "executing program\n", 18executing program
) = 18
[pid 23052] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23052] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23052] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23052] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23052] exit_group(0)               = ?
[pid 23052] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23052, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22471", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22471", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22471/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22471/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22471/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22471")                        = 0
mkdir("./22472", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23053
./strace-static-x86_64: Process 23053 attached
[pid 23053] set_robust_list(0x55557a32b660, 24) = 0
[pid 23053] chdir("./22472")            = 0
[pid 23053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23053] setpgid(0, 0)               = 0
[pid 23053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23053] write(3, "1000", 4)         = 4
[pid 23053] close(3)                    = 0
[pid 23053] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23053] write(1, "executing program\n", 18) = 18
[pid 23053] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23053] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23053] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23053] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23053] exit_group(0)               = ?
[pid 23053] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23053, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22472", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22472", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22472/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22472/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22472/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22472")                        = 0
mkdir("./22473", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23055
./strace-static-x86_64: Process 23055 attached
[pid 23055] set_robust_list(0x55557a32b660, 24) = 0
[pid 23055] chdir("./22473")            = 0
[pid 23055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23055] setpgid(0, 0)               = 0
[pid 23055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23055] write(3, "1000", 4)         = 4
[pid 23055] close(3)                    = 0
[pid 23055] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23055] write(1, "executing program\n", 18executing program
) = 18
[pid 23055] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23055] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23055] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23055] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23055] exit_group(0)               = ?
[pid 23055] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23055, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22473", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22473", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22473/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22473/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22473/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22473")                        = 0
mkdir("./22474", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23056
./strace-static-x86_64: Process 23056 attached
[pid 23056] set_robust_list(0x55557a32b660, 24) = 0
[pid 23056] chdir("./22474")            = 0
[pid 23056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23056] setpgid(0, 0)               = 0
[pid 23056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23056] write(3, "1000", 4)         = 4
[pid 23056] close(3)                    = 0
[pid 23056] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23056] write(1, "executing program\n", 18executing program
) = 18
[pid 23056] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23056] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23056] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23056] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23056] exit_group(0)               = ?
[pid 23056] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23056, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22474", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22474", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22474/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22474/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22474/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22474")                        = 0
mkdir("./22475", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23057 attached
, child_tidptr=0x55557a32b650) = 23057
[pid 23057] set_robust_list(0x55557a32b660, 24) = 0
[pid 23057] chdir("./22475")            = 0
[pid 23057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23057] setpgid(0, 0)               = 0
[pid 23057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23057] write(3, "1000", 4)         = 4
[pid 23057] close(3)                    = 0
[pid 23057] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23057] write(1, "executing program\n", 18executing program
) = 18
[pid 23057] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23057] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23057] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23057] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23057] exit_group(0)               = ?
[pid 23057] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23057, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22475", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22475", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22475/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22475/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22475/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22475")                        = 0
mkdir("./22476", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23058
./strace-static-x86_64: Process 23058 attached
[pid 23058] set_robust_list(0x55557a32b660, 24) = 0
[pid 23058] chdir("./22476")            = 0
[pid 23058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23058] setpgid(0, 0)               = 0
[pid 23058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23058] write(3, "1000", 4)         = 4
[pid 23058] close(3)                    = 0
[pid 23058] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23058] write(1, "executing program\n", 18) = 18
[pid 23058] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23058] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23058] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23058] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23058] exit_group(0)               = ?
[pid 23058] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23058, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22476", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22476", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22476/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22476/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22476/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22476")                        = 0
mkdir("./22477", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23059
./strace-static-x86_64: Process 23059 attached
[pid 23059] set_robust_list(0x55557a32b660, 24) = 0
[pid 23059] chdir("./22477")            = 0
[pid 23059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23059] setpgid(0, 0)               = 0
[pid 23059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23059] write(3, "1000", 4)         = 4
[pid 23059] close(3)                    = 0
[pid 23059] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23059] write(1, "executing program\n", 18) = 18
[pid 23059] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23059] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23059] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23059] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23059] exit_group(0)               = ?
[pid 23059] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23059, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22477", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22477", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22477/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22477/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22477/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22477")                        = 0
mkdir("./22478", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23060 attached
, child_tidptr=0x55557a32b650) = 23060
[pid 23060] set_robust_list(0x55557a32b660, 24) = 0
[pid 23060] chdir("./22478")            = 0
[pid 23060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23060] setpgid(0, 0)               = 0
[pid 23060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23060] write(3, "1000", 4)         = 4
[pid 23060] close(3)                    = 0
[pid 23060] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23060] write(1, "executing program\n", 18executing program
) = 18
[pid 23060] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23060] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23060] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23060] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23060] exit_group(0)               = ?
[pid 23060] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23060, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22478", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22478", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22478/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22478/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22478/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22478")                        = 0
mkdir("./22479", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23061
./strace-static-x86_64: Process 23061 attached
[pid 23061] set_robust_list(0x55557a32b660, 24) = 0
[pid 23061] chdir("./22479")            = 0
[pid 23061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23061] setpgid(0, 0)               = 0
[pid 23061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23061] write(3, "1000", 4)         = 4
[pid 23061] close(3)                    = 0
[pid 23061] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23061] write(1, "executing program\n", 18executing program
) = 18
[pid 23061] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23061] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23061] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23061] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23061] exit_group(0)               = ?
[pid 23061] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23061, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22479", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22479", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22479/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22479/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22479/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22479")                        = 0
mkdir("./22480", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23062 attached
, child_tidptr=0x55557a32b650) = 23062
[pid 23062] set_robust_list(0x55557a32b660, 24) = 0
[pid 23062] chdir("./22480")            = 0
[pid 23062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23062] setpgid(0, 0)               = 0
[pid 23062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23062] write(3, "1000", 4)         = 4
[pid 23062] close(3)                    = 0
[pid 23062] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23062] write(1, "executing program\n", 18executing program
) = 18
[pid 23062] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23062] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23062] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23062] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23062] exit_group(0)               = ?
[pid 23062] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23062, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22480", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22480", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22480/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22480/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22480/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22480")                        = 0
mkdir("./22481", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23063
./strace-static-x86_64: Process 23063 attached
[pid 23063] set_robust_list(0x55557a32b660, 24) = 0
[pid 23063] chdir("./22481")            = 0
[pid 23063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23063] setpgid(0, 0)               = 0
[pid 23063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23063] write(3, "1000", 4)         = 4
[pid 23063] close(3)                    = 0
[pid 23063] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23063] write(1, "executing program\n", 18executing program
) = 18
[pid 23063] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23063] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23063] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23063] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23063] exit_group(0)               = ?
[pid 23063] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23063, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22481", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22481", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22481/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22481/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22481/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22481")                        = 0
mkdir("./22482", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23064 attached
, child_tidptr=0x55557a32b650) = 23064
[pid 23064] set_robust_list(0x55557a32b660, 24) = 0
[pid 23064] chdir("./22482")            = 0
[pid 23064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23064] setpgid(0, 0)               = 0
[pid 23064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23064] write(3, "1000", 4)         = 4
[pid 23064] close(3)                    = 0
[pid 23064] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23064] write(1, "executing program\n", 18executing program
) = 18
[pid 23064] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23064] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23064] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23064] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23064] exit_group(0)               = ?
[pid 23064] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23064, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22482", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22482", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22482/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22482/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22482/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22482")                        = 0
mkdir("./22483", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23065
./strace-static-x86_64: Process 23065 attached
[pid 23065] set_robust_list(0x55557a32b660, 24) = 0
[pid 23065] chdir("./22483")            = 0
[pid 23065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23065] setpgid(0, 0)               = 0
[pid 23065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23065] write(3, "1000", 4)         = 4
[pid 23065] close(3)                    = 0
[pid 23065] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23065] write(1, "executing program\n", 18executing program
) = 18
[pid 23065] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23065] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23065] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23065] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23065] exit_group(0)               = ?
[pid 23065] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23065, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22483", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22483", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22483/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22483/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22483/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22483")                        = 0
mkdir("./22484", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23066
./strace-static-x86_64: Process 23066 attached
[pid 23066] set_robust_list(0x55557a32b660, 24) = 0
[pid 23066] chdir("./22484")            = 0
[pid 23066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23066] setpgid(0, 0)               = 0
[pid 23066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23066] write(3, "1000", 4)         = 4
[pid 23066] close(3)                    = 0
[pid 23066] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23066] write(1, "executing program\n", 18executing program
) = 18
[pid 23066] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23066] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23066] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23066] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23066] exit_group(0)               = ?
[pid 23066] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23066, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22484", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22484", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22484/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22484/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22484/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22484")                        = 0
mkdir("./22485", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23067 attached
, child_tidptr=0x55557a32b650) = 23067
[pid 23067] set_robust_list(0x55557a32b660, 24) = 0
[pid 23067] chdir("./22485")            = 0
[pid 23067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23067] setpgid(0, 0)               = 0
[pid 23067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23067] write(3, "1000", 4)         = 4
[pid 23067] close(3)                    = 0
[pid 23067] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23067] write(1, "executing program\n", 18executing program
) = 18
[pid 23067] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23067] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23067] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23067] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23067] exit_group(0)               = ?
[pid 23067] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23067, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22485", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22485", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22485/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22485/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22485/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22485")                        = 0
mkdir("./22486", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23068 attached
, child_tidptr=0x55557a32b650) = 23068
[pid 23068] set_robust_list(0x55557a32b660, 24) = 0
[pid 23068] chdir("./22486")            = 0
[pid 23068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23068] setpgid(0, 0)               = 0
[pid 23068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23068] write(3, "1000", 4)         = 4
[pid 23068] close(3)                    = 0
[pid 23068] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23068] write(1, "executing program\n", 18executing program
) = 18
[pid 23068] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23068] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23068] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23068] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23068] exit_group(0)               = ?
[pid 23068] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23068, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22486", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22486", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22486/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22486/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22486/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22486")                        = 0
mkdir("./22487", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23069
./strace-static-x86_64: Process 23069 attached
[pid 23069] set_robust_list(0x55557a32b660, 24) = 0
[pid 23069] chdir("./22487")            = 0
[pid 23069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23069] setpgid(0, 0)               = 0
[pid 23069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23069] write(3, "1000", 4)         = 4
[pid 23069] close(3)                    = 0
[pid 23069] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23069] write(1, "executing program\n", 18executing program
) = 18
[pid 23069] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23069] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23069] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23069] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23069] exit_group(0)               = ?
[pid 23069] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23069, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22487", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22487", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22487/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22487/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22487/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22487")                        = 0
mkdir("./22488", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23070
./strace-static-x86_64: Process 23070 attached
[pid 23070] set_robust_list(0x55557a32b660, 24) = 0
[pid 23070] chdir("./22488")            = 0
[pid 23070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23070] setpgid(0, 0)               = 0
[pid 23070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23070] write(3, "1000", 4)         = 4
[pid 23070] close(3)                    = 0
[pid 23070] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23070] write(1, "executing program\n", 18executing program
) = 18
[pid 23070] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23070] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23070] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23070] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23070] exit_group(0)               = ?
[pid 23070] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23070, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22488", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22488", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22488/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22488/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22488/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22488")                        = 0
mkdir("./22489", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23071 attached
, child_tidptr=0x55557a32b650) = 23071
[pid 23071] set_robust_list(0x55557a32b660, 24) = 0
[pid 23071] chdir("./22489")            = 0
[pid 23071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23071] setpgid(0, 0)               = 0
[pid 23071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23071] write(3, "1000", 4)         = 4
[pid 23071] close(3)                    = 0
[pid 23071] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23071] write(1, "executing program\n", 18executing program
) = 18
[pid 23071] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23071] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23071] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23071] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23071] exit_group(0)               = ?
[pid 23071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23071, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22489", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22489", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22489/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22489/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22489/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22489")                        = 0
mkdir("./22490", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23072
./strace-static-x86_64: Process 23072 attached
[pid 23072] set_robust_list(0x55557a32b660, 24) = 0
[pid 23072] chdir("./22490")            = 0
[pid 23072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23072] setpgid(0, 0)               = 0
[pid 23072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23072] write(3, "1000", 4)         = 4
[pid 23072] close(3)                    = 0
[pid 23072] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23072] write(1, "executing program\n", 18executing program
) = 18
[pid 23072] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23072] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23072] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23072] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23072] exit_group(0)               = ?
[pid 23072] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23072, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22490", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22490", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22490/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22490/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22490/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22490")                        = 0
mkdir("./22491", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23073
./strace-static-x86_64: Process 23073 attached
[pid 23073] set_robust_list(0x55557a32b660, 24) = 0
[pid 23073] chdir("./22491")            = 0
[pid 23073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23073] setpgid(0, 0)               = 0
[pid 23073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23073] write(3, "1000", 4)         = 4
[pid 23073] close(3)                    = 0
[pid 23073] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23073] write(1, "executing program\n", 18executing program
) = 18
[pid 23073] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23073] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23073] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23073] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23073] exit_group(0)               = ?
[pid 23073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23073, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22491", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22491", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22491/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22491/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22491/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22491")                        = 0
mkdir("./22492", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23074
./strace-static-x86_64: Process 23074 attached
[pid 23074] set_robust_list(0x55557a32b660, 24) = 0
[pid 23074] chdir("./22492")            = 0
[pid 23074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23074] setpgid(0, 0)               = 0
[pid 23074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23074] write(3, "1000", 4)         = 4
[pid 23074] close(3)                    = 0
[pid 23074] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23074] write(1, "executing program\n", 18executing program
) = 18
[pid 23074] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23074] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23074] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23074] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23074] exit_group(0)               = ?
[pid 23074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23074, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22492", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22492", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22492/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22492/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22492/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22492")                        = 0
mkdir("./22493", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23075
./strace-static-x86_64: Process 23075 attached
[pid 23075] set_robust_list(0x55557a32b660, 24) = 0
[pid 23075] chdir("./22493")            = 0
[pid 23075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23075] setpgid(0, 0)               = 0
[pid 23075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23075] write(3, "1000", 4)         = 4
[pid 23075] close(3)                    = 0
[pid 23075] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23075] write(1, "executing program\n", 18) = 18
[pid 23075] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23075] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23075] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23075] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23075] exit_group(0)               = ?
[pid 23075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23075, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22493", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22493", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22493/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22493/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22493/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22493")                        = 0
mkdir("./22494", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23076
./strace-static-x86_64: Process 23076 attached
[pid 23076] set_robust_list(0x55557a32b660, 24) = 0
[pid 23076] chdir("./22494")            = 0
[pid 23076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23076] setpgid(0, 0)               = 0
[pid 23076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23076] write(3, "1000", 4)         = 4
[pid 23076] close(3)                    = 0
[pid 23076] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23076] write(1, "executing program\n", 18executing program
) = 18
[pid 23076] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23076] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23076] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23076] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23076] exit_group(0)               = ?
[pid 23076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23076, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22494", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22494", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22494/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22494/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22494/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22494")                        = 0
mkdir("./22495", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23077
./strace-static-x86_64: Process 23077 attached
[pid 23077] set_robust_list(0x55557a32b660, 24) = 0
[pid 23077] chdir("./22495")            = 0
[pid 23077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23077] setpgid(0, 0)               = 0
[pid 23077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23077] write(3, "1000", 4)         = 4
[pid 23077] close(3)                    = 0
[pid 23077] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23077] write(1, "executing program\n", 18executing program
) = 18
[pid 23077] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23077] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23077] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23077] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23077] exit_group(0)               = ?
[pid 23077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23077, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22495", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22495", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22495/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22495/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22495/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22495")                        = 0
mkdir("./22496", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23078
./strace-static-x86_64: Process 23078 attached
[pid 23078] set_robust_list(0x55557a32b660, 24) = 0
[pid 23078] chdir("./22496")            = 0
[pid 23078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23078] setpgid(0, 0)               = 0
[pid 23078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23078] write(3, "1000", 4)         = 4
[pid 23078] close(3)                    = 0
[pid 23078] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23078] write(1, "executing program\n", 18executing program
) = 18
[pid 23078] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23078] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23078] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23078] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23078] exit_group(0)               = ?
[pid 23078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23078, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22496", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22496", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22496/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22496/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22496/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22496")                        = 0
mkdir("./22497", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23079
./strace-static-x86_64: Process 23079 attached
[pid 23079] set_robust_list(0x55557a32b660, 24) = 0
[pid 23079] chdir("./22497")            = 0
[pid 23079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23079] setpgid(0, 0)               = 0
[pid 23079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23079] write(3, "1000", 4)         = 4
[pid 23079] close(3)                    = 0
[pid 23079] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23079] write(1, "executing program\n", 18executing program
) = 18
[pid 23079] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23079] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23079] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23079] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23079] exit_group(0)               = ?
[pid 23079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23079, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22497", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22497", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22497/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22497/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22497/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22497")                        = 0
mkdir("./22498", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23080
./strace-static-x86_64: Process 23080 attached
[pid 23080] set_robust_list(0x55557a32b660, 24) = 0
[pid 23080] chdir("./22498")            = 0
[pid 23080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23080] setpgid(0, 0)               = 0
[pid 23080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23080] write(3, "1000", 4)         = 4
[pid 23080] close(3)                    = 0
[pid 23080] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23080] write(1, "executing program\n", 18) = 18
[pid 23080] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23080] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23080] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23080] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23080] exit_group(0)               = ?
[pid 23080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23080, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22498", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22498", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22498/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22498/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22498/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22498")                        = 0
mkdir("./22499", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23081
./strace-static-x86_64: Process 23081 attached
[pid 23081] set_robust_list(0x55557a32b660, 24) = 0
[pid 23081] chdir("./22499")            = 0
[pid 23081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23081] setpgid(0, 0)               = 0
[pid 23081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23081] write(3, "1000", 4)         = 4
[pid 23081] close(3)                    = 0
[pid 23081] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23081] write(1, "executing program\n", 18executing program
) = 18
[pid 23081] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23081] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23081] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23081] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23081] exit_group(0)               = ?
[pid 23081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23081, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22499", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22499", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22499/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22499/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22499/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22499")                        = 0
mkdir("./22500", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23082 attached
, child_tidptr=0x55557a32b650) = 23082
[pid 23082] set_robust_list(0x55557a32b660, 24) = 0
[pid 23082] chdir("./22500")            = 0
[pid 23082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23082] setpgid(0, 0)               = 0
[pid 23082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23082] write(3, "1000", 4)         = 4
[pid 23082] close(3)                    = 0
[pid 23082] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23082] write(1, "executing program\n", 18executing program
) = 18
[pid 23082] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23082] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23082] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23082] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23082] exit_group(0)               = ?
[pid 23082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23082, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22500", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22500", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22500/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22500/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22500/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22500")                        = 0
mkdir("./22501", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23083
./strace-static-x86_64: Process 23083 attached
[pid 23083] set_robust_list(0x55557a32b660, 24) = 0
[pid 23083] chdir("./22501")            = 0
[pid 23083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23083] setpgid(0, 0)               = 0
[pid 23083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23083] write(3, "1000", 4)         = 4
[pid 23083] close(3)                    = 0
[pid 23083] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23083] write(1, "executing program\n", 18executing program
) = 18
[pid 23083] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23083] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23083] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23083] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23083] exit_group(0)               = ?
[pid 23083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23083, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22501", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22501", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22501/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22501/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22501/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22501")                        = 0
mkdir("./22502", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23084
./strace-static-x86_64: Process 23084 attached
[pid 23084] set_robust_list(0x55557a32b660, 24) = 0
[pid 23084] chdir("./22502")            = 0
[pid 23084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23084] setpgid(0, 0)               = 0
[pid 23084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23084] write(3, "1000", 4)         = 4
[pid 23084] close(3)                    = 0
[pid 23084] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23084] write(1, "executing program\n", 18executing program
) = 18
[pid 23084] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23084] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23084] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23084] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23084] exit_group(0)               = ?
[pid 23084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23084, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22502", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22502", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22502/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22502/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22502/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22502")                        = 0
mkdir("./22503", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23085 attached
, child_tidptr=0x55557a32b650) = 23085
[pid 23085] set_robust_list(0x55557a32b660, 24) = 0
[pid 23085] chdir("./22503")            = 0
[pid 23085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23085] setpgid(0, 0)               = 0
[pid 23085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23085] write(3, "1000", 4)         = 4
[pid 23085] close(3)                    = 0
[pid 23085] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23085] write(1, "executing program\n", 18executing program
) = 18
[pid 23085] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23085] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23085] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23085] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23085] exit_group(0)               = ?
[pid 23085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23085, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22503", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22503", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22503/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22503/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22503/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22503")                        = 0
mkdir("./22504", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23086
./strace-static-x86_64: Process 23086 attached
[pid 23086] set_robust_list(0x55557a32b660, 24) = 0
[pid 23086] chdir("./22504")            = 0
[pid 23086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23086] setpgid(0, 0)               = 0
[pid 23086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23086] write(3, "1000", 4)         = 4
[pid 23086] close(3)                    = 0
[pid 23086] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23086] write(1, "executing program\n", 18) = 18
[pid 23086] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23086] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23086] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23086] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23086] exit_group(0)               = ?
[pid 23086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23086, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22504", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22504", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22504/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22504/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22504/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22504")                        = 0
mkdir("./22505", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23087 attached
, child_tidptr=0x55557a32b650) = 23087
[pid 23087] set_robust_list(0x55557a32b660, 24) = 0
[pid 23087] chdir("./22505")            = 0
[pid 23087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23087] setpgid(0, 0)               = 0
[pid 23087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23087] write(3, "1000", 4)         = 4
[pid 23087] close(3)                    = 0
[pid 23087] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23087] write(1, "executing program\n", 18executing program
) = 18
[pid 23087] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23087] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23087] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23087] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23087] exit_group(0)               = ?
[pid 23087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23087, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22505", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22505", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22505/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22505/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22505/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22505")                        = 0
mkdir("./22506", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23088 attached
, child_tidptr=0x55557a32b650) = 23088
[pid 23088] set_robust_list(0x55557a32b660, 24) = 0
[pid 23088] chdir("./22506")            = 0
[pid 23088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23088] setpgid(0, 0)               = 0
[pid 23088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23088] write(3, "1000", 4)         = 4
[pid 23088] close(3)                    = 0
[pid 23088] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23088] write(1, "executing program\n", 18executing program
) = 18
[pid 23088] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23088] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23088] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23088] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23088] exit_group(0)               = ?
[pid 23088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23088, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22506", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22506", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22506/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22506/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22506/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22506")                        = 0
mkdir("./22507", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23089 attached
, child_tidptr=0x55557a32b650) = 23089
[pid 23089] set_robust_list(0x55557a32b660, 24) = 0
[pid 23089] chdir("./22507")            = 0
[pid 23089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23089] setpgid(0, 0)               = 0
[pid 23089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23089] write(3, "1000", 4)         = 4
[pid 23089] close(3)                    = 0
[pid 23089] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23089] write(1, "executing program\n", 18executing program
) = 18
[pid 23089] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23089] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23089] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23089] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23089] exit_group(0)               = ?
[pid 23089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23089, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22507", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22507", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22507/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22507/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22507/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22507")                        = 0
mkdir("./22508", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23090
./strace-static-x86_64: Process 23090 attached
[pid 23090] set_robust_list(0x55557a32b660, 24) = 0
[pid 23090] chdir("./22508")            = 0
[pid 23090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23090] setpgid(0, 0)               = 0
[pid 23090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23090] write(3, "1000", 4)         = 4
[pid 23090] close(3)                    = 0
[pid 23090] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23090] write(1, "executing program\n", 18executing program
) = 18
[pid 23090] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23090] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23090] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23090] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23090] exit_group(0)               = ?
[pid 23090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23090, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22508", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22508", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22508/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22508/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22508/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22508")                        = 0
mkdir("./22509", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23091
./strace-static-x86_64: Process 23091 attached
[pid 23091] set_robust_list(0x55557a32b660, 24) = 0
[pid 23091] chdir("./22509")            = 0
[pid 23091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23091] setpgid(0, 0)               = 0
[pid 23091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23091] write(3, "1000", 4)         = 4
[pid 23091] close(3)                    = 0
[pid 23091] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23091] write(1, "executing program\n", 18executing program
) = 18
[pid 23091] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23091] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23091] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23091] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23091] exit_group(0)               = ?
[pid 23091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23091, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22509", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22509", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22509/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22509/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22509/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22509")                        = 0
mkdir("./22510", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23092
./strace-static-x86_64: Process 23092 attached
[pid 23092] set_robust_list(0x55557a32b660, 24) = 0
[pid 23092] chdir("./22510")            = 0
[pid 23092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23092] setpgid(0, 0)               = 0
[pid 23092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23092] write(3, "1000", 4)         = 4
[pid 23092] close(3)                    = 0
[pid 23092] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23092] write(1, "executing program\n", 18) = 18
[pid 23092] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23092] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23092] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23092] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23092] exit_group(0)               = ?
[pid 23092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23092, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22510", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22510", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22510/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22510/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22510/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22510")                        = 0
mkdir("./22511", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23093 attached
, child_tidptr=0x55557a32b650) = 23093
[pid 23093] set_robust_list(0x55557a32b660, 24) = 0
[pid 23093] chdir("./22511")            = 0
[pid 23093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23093] setpgid(0, 0)               = 0
[pid 23093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23093] write(3, "1000", 4)         = 4
[pid 23093] close(3)                    = 0
[pid 23093] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23093] write(1, "executing program\n", 18executing program
) = 18
[pid 23093] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23093] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23093] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23093] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23093] exit_group(0)               = ?
[pid 23093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23093, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22511", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22511", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22511/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22511/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22511/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22511")                        = 0
mkdir("./22512", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23094
./strace-static-x86_64: Process 23094 attached
[pid 23094] set_robust_list(0x55557a32b660, 24) = 0
[pid 23094] chdir("./22512")            = 0
[pid 23094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23094] setpgid(0, 0)               = 0
[pid 23094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23094] write(3, "1000", 4)         = 4
[pid 23094] close(3)                    = 0
[pid 23094] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23094] write(1, "executing program\n", 18executing program
) = 18
[pid 23094] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23094] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23094] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23094] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23094] exit_group(0)               = ?
[pid 23094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23094, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22512", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22512", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22512/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22512/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22512/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22512")                        = 0
mkdir("./22513", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23095
./strace-static-x86_64: Process 23095 attached
[pid 23095] set_robust_list(0x55557a32b660, 24) = 0
[pid 23095] chdir("./22513")            = 0
[pid 23095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23095] setpgid(0, 0)               = 0
[pid 23095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23095] write(3, "1000", 4)         = 4
[pid 23095] close(3)                    = 0
[pid 23095] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23095] write(1, "executing program\n", 18) = 18
[pid 23095] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23095] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23095] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23095] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23095] exit_group(0)               = ?
[pid 23095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23095, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22513", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22513", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22513/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22513/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22513/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22513")                        = 0
mkdir("./22514", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23096
./strace-static-x86_64: Process 23096 attached
[pid 23096] set_robust_list(0x55557a32b660, 24) = 0
[pid 23096] chdir("./22514")            = 0
[pid 23096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23096] setpgid(0, 0)               = 0
[pid 23096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23096] write(3, "1000", 4)         = 4
[pid 23096] close(3)                    = 0
[pid 23096] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23096] write(1, "executing program\n", 18executing program
) = 18
[pid 23096] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23096] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23096] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23096] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23096] exit_group(0)               = ?
[pid 23096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22514", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22514", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22514/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22514/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22514/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22514")                        = 0
mkdir("./22515", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23097
./strace-static-x86_64: Process 23097 attached
[pid 23097] set_robust_list(0x55557a32b660, 24) = 0
[pid 23097] chdir("./22515")            = 0
[pid 23097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23097] setpgid(0, 0)               = 0
[pid 23097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23097] write(3, "1000", 4)         = 4
[pid 23097] close(3)                    = 0
[pid 23097] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23097] write(1, "executing program\n", 18executing program
) = 18
[pid 23097] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23097] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23097] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23097] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23097] exit_group(0)               = ?
[pid 23097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23097, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22515", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22515", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22515/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22515/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22515/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22515")                        = 0
mkdir("./22516", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23098
./strace-static-x86_64: Process 23098 attached
[pid 23098] set_robust_list(0x55557a32b660, 24) = 0
[pid 23098] chdir("./22516")            = 0
[pid 23098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23098] setpgid(0, 0)               = 0
[pid 23098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23098] write(3, "1000", 4)         = 4
[pid 23098] close(3)                    = 0
[pid 23098] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23098] write(1, "executing program\n", 18executing program
) = 18
[pid 23098] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23098] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23098] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23098] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23098] exit_group(0)               = ?
[pid 23098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23098, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22516", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22516", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22516/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22516/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22516/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22516")                        = 0
mkdir("./22517", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23099
./strace-static-x86_64: Process 23099 attached
[pid 23099] set_robust_list(0x55557a32b660, 24) = 0
[pid 23099] chdir("./22517")            = 0
[pid 23099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23099] setpgid(0, 0)               = 0
[pid 23099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23099] write(3, "1000", 4)         = 4
[pid 23099] close(3)                    = 0
[pid 23099] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23099] write(1, "executing program\n", 18executing program
) = 18
[pid 23099] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23099] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23099] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23099] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23099] exit_group(0)               = ?
[pid 23099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23099, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22517", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22517", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22517/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22517/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22517/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22517")                        = 0
mkdir("./22518", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23100
./strace-static-x86_64: Process 23100 attached
[pid 23100] set_robust_list(0x55557a32b660, 24) = 0
[pid 23100] chdir("./22518")            = 0
[pid 23100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23100] setpgid(0, 0)               = 0
[pid 23100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23100] write(3, "1000", 4)         = 4
[pid 23100] close(3)                    = 0
[pid 23100] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23100] write(1, "executing program\n", 18executing program
) = 18
[pid 23100] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23100] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23100] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23100] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23100] exit_group(0)               = ?
[pid 23100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23100, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22518", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22518", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22518/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22518/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22518/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22518")                        = 0
mkdir("./22519", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23101
./strace-static-x86_64: Process 23101 attached
[pid 23101] set_robust_list(0x55557a32b660, 24) = 0
[pid 23101] chdir("./22519")            = 0
[pid 23101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23101] setpgid(0, 0)               = 0
[pid 23101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23101] write(3, "1000", 4)         = 4
[pid 23101] close(3)                    = 0
[pid 23101] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23101] write(1, "executing program\n", 18executing program
) = 18
[pid 23101] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23101] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23101] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23101] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23101] exit_group(0)               = ?
[pid 23101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23101, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22519", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22519", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22519/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22519/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22519/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22519")                        = 0
mkdir("./22520", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23102
./strace-static-x86_64: Process 23102 attached
[pid 23102] set_robust_list(0x55557a32b660, 24) = 0
[pid 23102] chdir("./22520")            = 0
[pid 23102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23102] setpgid(0, 0)               = 0
[pid 23102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23102] write(3, "1000", 4)         = 4
[pid 23102] close(3)                    = 0
[pid 23102] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23102] write(1, "executing program\n", 18) = 18
[pid 23102] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23102] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23102] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23102] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23102] exit_group(0)               = ?
[pid 23102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23102, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22520", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22520", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22520/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22520/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22520/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22520")                        = 0
mkdir("./22521", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23103
./strace-static-x86_64: Process 23103 attached
[pid 23103] set_robust_list(0x55557a32b660, 24) = 0
[pid 23103] chdir("./22521")            = 0
[pid 23103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23103] setpgid(0, 0)               = 0
[pid 23103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23103] write(3, "1000", 4)         = 4
[pid 23103] close(3)                    = 0
[pid 23103] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23103] write(1, "executing program\n", 18executing program
) = 18
[pid 23103] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23103] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23103] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23103] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23103] exit_group(0)               = ?
[pid 23103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23103, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22521", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22521", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22521/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22521/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22521/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22521")                        = 0
mkdir("./22522", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23104 attached
, child_tidptr=0x55557a32b650) = 23104
[pid 23104] set_robust_list(0x55557a32b660, 24) = 0
[pid 23104] chdir("./22522")            = 0
[pid 23104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23104] setpgid(0, 0)               = 0
[pid 23104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23104] write(3, "1000", 4)         = 4
[pid 23104] close(3)                    = 0
[pid 23104] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23104] write(1, "executing program\n", 18executing program
) = 18
[pid 23104] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23104] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23104] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23104] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23104] exit_group(0)               = ?
[pid 23104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23104, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22522", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22522", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22522/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22522/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22522/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22522")                        = 0
mkdir("./22523", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23105
./strace-static-x86_64: Process 23105 attached
[pid 23105] set_robust_list(0x55557a32b660, 24) = 0
[pid 23105] chdir("./22523")            = 0
[pid 23105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23105] setpgid(0, 0)               = 0
[pid 23105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23105] write(3, "1000", 4)         = 4
[pid 23105] close(3)                    = 0
[pid 23105] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23105] write(1, "executing program\n", 18executing program
) = 18
[pid 23105] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23105] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23105] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23105] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23105] exit_group(0)               = ?
[pid 23105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23105, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22523", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22523", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22523/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22523/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22523/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22523")                        = 0
mkdir("./22524", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23106 attached
, child_tidptr=0x55557a32b650) = 23106
[pid 23106] set_robust_list(0x55557a32b660, 24) = 0
[pid 23106] chdir("./22524")            = 0
[pid 23106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23106] setpgid(0, 0)               = 0
[pid 23106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23106] write(3, "1000", 4)         = 4
[pid 23106] close(3)                    = 0
[pid 23106] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23106] write(1, "executing program\n", 18executing program
) = 18
[pid 23106] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23106] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23106] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23106] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23106] exit_group(0)               = ?
[pid 23106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23106, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22524", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22524", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22524/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22524/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22524/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22524")                        = 0
mkdir("./22525", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23107
./strace-static-x86_64: Process 23107 attached
[pid 23107] set_robust_list(0x55557a32b660, 24) = 0
[pid 23107] chdir("./22525")            = 0
[pid 23107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23107] setpgid(0, 0)               = 0
[pid 23107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23107] write(3, "1000", 4)         = 4
[pid 23107] close(3)                    = 0
[pid 23107] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23107] write(1, "executing program\n", 18) = 18
[pid 23107] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23107] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23107] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23107] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23107] exit_group(0)               = ?
[pid 23107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23107, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22525", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22525", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22525/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22525/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22525/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22525")                        = 0
mkdir("./22526", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23108 attached
, child_tidptr=0x55557a32b650) = 23108
[pid 23108] set_robust_list(0x55557a32b660, 24) = 0
[pid 23108] chdir("./22526")            = 0
[pid 23108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23108] setpgid(0, 0)               = 0
[pid 23108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23108] write(3, "1000", 4)         = 4
[pid 23108] close(3)                    = 0
[pid 23108] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23108] write(1, "executing program\n", 18executing program
) = 18
[pid 23108] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23108] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23108] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23108] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23108] exit_group(0)               = ?
[pid 23108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23108, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22526", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22526", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22526/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22526/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22526/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22526")                        = 0
mkdir("./22527", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23109
./strace-static-x86_64: Process 23109 attached
[pid 23109] set_robust_list(0x55557a32b660, 24) = 0
[pid 23109] chdir("./22527")            = 0
[pid 23109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23109] setpgid(0, 0)               = 0
[pid 23109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23109] write(3, "1000", 4)         = 4
[pid 23109] close(3)                    = 0
[pid 23109] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23109] write(1, "executing program\n", 18executing program
) = 18
[pid 23109] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23109] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23109] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23109] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23109] exit_group(0)               = ?
[pid 23109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23109, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22527", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22527", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22527/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22527/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22527/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22527")                        = 0
mkdir("./22528", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23110 attached
, child_tidptr=0x55557a32b650) = 23110
[pid 23110] set_robust_list(0x55557a32b660, 24) = 0
[pid 23110] chdir("./22528")            = 0
[pid 23110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23110] setpgid(0, 0)               = 0
[pid 23110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23110] write(3, "1000", 4)         = 4
[pid 23110] close(3)                    = 0
[pid 23110] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23110] write(1, "executing program\n", 18executing program
) = 18
[pid 23110] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23110] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23110] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23110] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23110] exit_group(0)               = ?
[pid 23110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23110, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22528", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22528", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22528/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22528/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22528/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22528")                        = 0
mkdir("./22529", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23111
./strace-static-x86_64: Process 23111 attached
[pid 23111] set_robust_list(0x55557a32b660, 24) = 0
[pid 23111] chdir("./22529")            = 0
[pid 23111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23111] setpgid(0, 0)               = 0
[pid 23111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23111] write(3, "1000", 4)         = 4
[pid 23111] close(3)                    = 0
[pid 23111] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23111] write(1, "executing program\n", 18executing program
) = 18
[pid 23111] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23111] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23111] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23111] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23111] exit_group(0)               = ?
[pid 23111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23111, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22529", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22529", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22529/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22529/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22529/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22529")                        = 0
mkdir("./22530", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23112 attached
 <unfinished ...>
[pid 23112] set_robust_list(0x55557a32b660, 24) = 0
[pid 23112] chdir("./22530")            = 0
[pid 23112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23112] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23112
[pid 23112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23112] write(3, "1000", 4)         = 4
[pid 23112] close(3)                    = 0
[pid 23112] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23112] write(1, "executing program\n", 18executing program
) = 18
[pid 23112] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23112] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23112] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23112] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23112] exit_group(0)               = ?
[pid 23112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23112, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22530", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22530", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22530/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22530/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22530/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22530")                        = 0
mkdir("./22531", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23113 attached
, child_tidptr=0x55557a32b650) = 23113
[pid 23113] set_robust_list(0x55557a32b660, 24) = 0
[pid 23113] chdir("./22531")            = 0
[pid 23113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23113] setpgid(0, 0)               = 0
[pid 23113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23113] write(3, "1000", 4)         = 4
[pid 23113] close(3)                    = 0
[pid 23113] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23113] write(1, "executing program\n", 18executing program
) = 18
[pid 23113] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23113] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23113] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23113] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23113] exit_group(0)               = ?
[pid 23113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23113, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22531", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22531", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22531/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22531/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22531/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22531")                        = 0
mkdir("./22532", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23114 attached
, child_tidptr=0x55557a32b650) = 23114
[pid 23114] set_robust_list(0x55557a32b660, 24) = 0
[pid 23114] chdir("./22532")            = 0
[pid 23114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23114] setpgid(0, 0)               = 0
[pid 23114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23114] write(3, "1000", 4)         = 4
[pid 23114] close(3)                    = 0
[pid 23114] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23114] write(1, "executing program\n", 18executing program
) = 18
[pid 23114] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23114] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23114] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23114] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23114] exit_group(0)               = ?
[pid 23114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23114, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22532", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22532", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22532/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22532/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22532/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22532")                        = 0
mkdir("./22533", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23115
./strace-static-x86_64: Process 23115 attached
[pid 23115] set_robust_list(0x55557a32b660, 24) = 0
[pid 23115] chdir("./22533")            = 0
[pid 23115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23115] setpgid(0, 0)               = 0
[pid 23115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23115] write(3, "1000", 4)         = 4
[pid 23115] close(3)                    = 0
[pid 23115] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23115] write(1, "executing program\n", 18executing program
) = 18
[pid 23115] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23115] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23115] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23115] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23115] exit_group(0)               = ?
[pid 23115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23115, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22533", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22533", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22533/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22533/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22533/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22533")                        = 0
mkdir("./22534", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23116
./strace-static-x86_64: Process 23116 attached
[pid 23116] set_robust_list(0x55557a32b660, 24) = 0
[pid 23116] chdir("./22534")            = 0
[pid 23116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23116] setpgid(0, 0)               = 0
[pid 23116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23116] write(3, "1000", 4)         = 4
[pid 23116] close(3)                    = 0
[pid 23116] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23116] write(1, "executing program\n", 18executing program
) = 18
[pid 23116] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23116] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23116] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23116] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23116] exit_group(0)               = ?
[pid 23116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23116, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22534", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22534", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22534/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22534/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22534/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22534")                        = 0
mkdir("./22535", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23117 attached
, child_tidptr=0x55557a32b650) = 23117
[pid 23117] set_robust_list(0x55557a32b660, 24) = 0
[pid 23117] chdir("./22535")            = 0
[pid 23117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23117] setpgid(0, 0)               = 0
[pid 23117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23117] write(3, "1000", 4)         = 4
[pid 23117] close(3)                    = 0
[pid 23117] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23117] write(1, "executing program\n", 18executing program
) = 18
[pid 23117] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23117] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23117] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23117] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23117] exit_group(0)               = ?
[pid 23117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23117, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22535", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22535", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22535/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22535/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22535/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22535")                        = 0
mkdir("./22536", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23118
./strace-static-x86_64: Process 23118 attached
[pid 23118] set_robust_list(0x55557a32b660, 24) = 0
[pid 23118] chdir("./22536")            = 0
[pid 23118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23118] setpgid(0, 0)               = 0
[pid 23118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23118] write(3, "1000", 4)         = 4
[pid 23118] close(3)                    = 0
[pid 23118] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23118] write(1, "executing program\n", 18executing program
) = 18
[pid 23118] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23118] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23118] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23118] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23118] exit_group(0)               = ?
[pid 23118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23118, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22536", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22536", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22536/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22536/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22536/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22536")                        = 0
mkdir("./22537", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23119
./strace-static-x86_64: Process 23119 attached
[pid 23119] set_robust_list(0x55557a32b660, 24) = 0
[pid 23119] chdir("./22537")            = 0
[pid 23119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23119] setpgid(0, 0)               = 0
[pid 23119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23119] write(3, "1000", 4)         = 4
[pid 23119] close(3)                    = 0
[pid 23119] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23119] write(1, "executing program\n", 18) = 18
[pid 23119] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23119] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23119] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23119] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23119] exit_group(0)               = ?
[pid 23119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23119, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22537", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22537", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22537/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22537/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22537/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22537")                        = 0
mkdir("./22538", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23120 attached
, child_tidptr=0x55557a32b650) = 23120
[pid 23120] set_robust_list(0x55557a32b660, 24) = 0
[pid 23120] chdir("./22538")            = 0
[pid 23120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23120] setpgid(0, 0)               = 0
[pid 23120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23120] write(3, "1000", 4)         = 4
[pid 23120] close(3)                    = 0
[pid 23120] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23120] write(1, "executing program\n", 18executing program
) = 18
[pid 23120] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23120] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23120] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23120] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23120] exit_group(0)               = ?
[pid 23120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23120, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22538", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22538", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22538/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22538/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22538/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22538")                        = 0
mkdir("./22539", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23121
./strace-static-x86_64: Process 23121 attached
[pid 23121] set_robust_list(0x55557a32b660, 24) = 0
[pid 23121] chdir("./22539")            = 0
[pid 23121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23121] setpgid(0, 0)               = 0
[pid 23121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23121] write(3, "1000", 4)         = 4
[pid 23121] close(3)                    = 0
[pid 23121] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23121] write(1, "executing program\n", 18executing program
) = 18
[pid 23121] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23121] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23121] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23121] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23121] exit_group(0)               = ?
[pid 23121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23121, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22539", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22539", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22539/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22539/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22539/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22539")                        = 0
mkdir("./22540", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23122
./strace-static-x86_64: Process 23122 attached
[pid 23122] set_robust_list(0x55557a32b660, 24) = 0
[pid 23122] chdir("./22540")            = 0
[pid 23122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23122] setpgid(0, 0)               = 0
[pid 23122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23122] write(3, "1000", 4)         = 4
[pid 23122] close(3)                    = 0
[pid 23122] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23122] write(1, "executing program\n", 18executing program
) = 18
[pid 23122] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23122] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23122] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23122] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23122] exit_group(0)               = ?
[pid 23122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23122, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22540", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22540", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22540/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22540/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22540/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22540")                        = 0
mkdir("./22541", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23123
./strace-static-x86_64: Process 23123 attached
[pid 23123] set_robust_list(0x55557a32b660, 24) = 0
[pid 23123] chdir("./22541")            = 0
[pid 23123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23123] setpgid(0, 0)               = 0
[pid 23123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23123] write(3, "1000", 4)         = 4
[pid 23123] close(3)                    = 0
[pid 23123] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23123] write(1, "executing program\n", 18executing program
) = 18
[pid 23123] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23123] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23123] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23123] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23123] exit_group(0)               = ?
[pid 23123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23123, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22541", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22541", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22541/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22541/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22541/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22541")                        = 0
mkdir("./22542", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23124
./strace-static-x86_64: Process 23124 attached
[pid 23124] set_robust_list(0x55557a32b660, 24) = 0
[pid 23124] chdir("./22542")            = 0
[pid 23124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23124] setpgid(0, 0)               = 0
[pid 23124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23124] write(3, "1000", 4)         = 4
[pid 23124] close(3)                    = 0
[pid 23124] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23124] write(1, "executing program\n", 18executing program
) = 18
[pid 23124] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23124] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23124] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23124] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23124] exit_group(0)               = ?
[pid 23124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23124, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22542", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22542", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22542/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22542/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22542/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22542")                        = 0
mkdir("./22543", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23125
./strace-static-x86_64: Process 23125 attached
[pid 23125] set_robust_list(0x55557a32b660, 24) = 0
[pid 23125] chdir("./22543")            = 0
[pid 23125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23125] setpgid(0, 0)               = 0
[pid 23125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23125] write(3, "1000", 4)         = 4
[pid 23125] close(3)                    = 0
[pid 23125] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23125] write(1, "executing program\n", 18executing program
) = 18
[pid 23125] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23125] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23125] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23125] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23125] exit_group(0)               = ?
[pid 23125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23125, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22543", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22543", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22543/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22543/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22543/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22543")                        = 0
mkdir("./22544", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23126
./strace-static-x86_64: Process 23126 attached
[pid 23126] set_robust_list(0x55557a32b660, 24) = 0
[pid 23126] chdir("./22544")            = 0
[pid 23126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23126] setpgid(0, 0)               = 0
[pid 23126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23126] write(3, "1000", 4)         = 4
[pid 23126] close(3)                    = 0
[pid 23126] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23126] write(1, "executing program\n", 18executing program
) = 18
[pid 23126] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23126] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23126] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23126] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23126] exit_group(0)               = ?
[pid 23126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23126, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22544", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22544", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22544/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22544/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22544/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22544")                        = 0
mkdir("./22545", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23127 attached
 <unfinished ...>
[pid 23127] set_robust_list(0x55557a32b660, 24) = 0
[pid 23127] chdir("./22545" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23127
[pid 23127] <... chdir resumed>)        = 0
[pid 23127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23127] setpgid(0, 0)               = 0
[pid 23127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23127] write(3, "1000", 4)         = 4
[pid 23127] close(3)                    = 0
[pid 23127] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23127] write(1, "executing program\n", 18) = 18
[pid 23127] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23127] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23127] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23127] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23127] exit_group(0)               = ?
[pid 23127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23127, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22545", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22545", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22545/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22545/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22545/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22545")                        = 0
mkdir("./22546", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23128
./strace-static-x86_64: Process 23128 attached
[pid 23128] set_robust_list(0x55557a32b660, 24) = 0
[pid 23128] chdir("./22546")            = 0
[pid 23128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23128] setpgid(0, 0)               = 0
[pid 23128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23128] write(3, "1000", 4)         = 4
[pid 23128] close(3)                    = 0
[pid 23128] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23128] write(1, "executing program\n", 18executing program
) = 18
[pid 23128] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23128] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23128] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23128] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23128] exit_group(0)               = ?
[pid 23128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23128, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22546", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22546", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22546/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22546/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22546/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22546")                        = 0
mkdir("./22547", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23129
./strace-static-x86_64: Process 23129 attached
[pid 23129] set_robust_list(0x55557a32b660, 24) = 0
[pid 23129] chdir("./22547")            = 0
[pid 23129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23129] setpgid(0, 0)               = 0
[pid 23129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23129] write(3, "1000", 4)         = 4
[pid 23129] close(3)                    = 0
[pid 23129] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23129] write(1, "executing program\n", 18executing program
) = 18
[pid 23129] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23129] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23129] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23129] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23129] exit_group(0)               = ?
[pid 23129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23129, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22547", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22547", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22547/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22547/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22547/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22547")                        = 0
mkdir("./22548", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23130
./strace-static-x86_64: Process 23130 attached
[pid 23130] set_robust_list(0x55557a32b660, 24) = 0
[pid 23130] chdir("./22548")            = 0
[pid 23130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23130] setpgid(0, 0)               = 0
[pid 23130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23130] write(3, "1000", 4)         = 4
[pid 23130] close(3)                    = 0
[pid 23130] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23130] write(1, "executing program\n", 18) = 18
[pid 23130] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23130] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23130] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23130] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23130] exit_group(0)               = ?
[pid 23130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22548", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22548", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22548/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22548/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22548/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22548")                        = 0
mkdir("./22549", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23131 attached
, child_tidptr=0x55557a32b650) = 23131
[pid 23131] set_robust_list(0x55557a32b660, 24) = 0
[pid 23131] chdir("./22549")            = 0
[pid 23131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23131] setpgid(0, 0)               = 0
[pid 23131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23131] write(3, "1000", 4)         = 4
[pid 23131] close(3)                    = 0
[pid 23131] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23131] write(1, "executing program\n", 18executing program
) = 18
[pid 23131] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23131] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23131] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23131] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23131] exit_group(0)               = ?
[pid 23131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23131, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22549", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22549", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22549/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22549/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22549/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22549")                        = 0
mkdir("./22550", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23132
./strace-static-x86_64: Process 23132 attached
[pid 23132] set_robust_list(0x55557a32b660, 24) = 0
[pid 23132] chdir("./22550")            = 0
[pid 23132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23132] setpgid(0, 0)               = 0
[pid 23132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23132] write(3, "1000", 4)         = 4
[pid 23132] close(3)                    = 0
[pid 23132] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23132] write(1, "executing program\n", 18) = 18
[pid 23132] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23132] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23132] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23132] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23132] exit_group(0)               = ?
[pid 23132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23132, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22550", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22550", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22550/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22550/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22550/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22550")                        = 0
mkdir("./22551", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23134
./strace-static-x86_64: Process 23134 attached
[pid 23134] set_robust_list(0x55557a32b660, 24) = 0
[pid 23134] chdir("./22551")            = 0
[pid 23134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23134] setpgid(0, 0)               = 0
[pid 23134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23134] write(3, "1000", 4)         = 4
[pid 23134] close(3)                    = 0
[pid 23134] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23134] write(1, "executing program\n", 18executing program
) = 18
[pid 23134] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23134] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23134] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23134] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23134] exit_group(0)               = ?
[pid 23134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22551", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22551", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22551/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22551/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22551/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22551")                        = 0
mkdir("./22552", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23135
./strace-static-x86_64: Process 23135 attached
[pid 23135] set_robust_list(0x55557a32b660, 24) = 0
[pid 23135] chdir("./22552")            = 0
[pid 23135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23135] setpgid(0, 0)               = 0
[pid 23135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23135] write(3, "1000", 4)         = 4
[pid 23135] close(3)                    = 0
[pid 23135] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23135] write(1, "executing program\n", 18) = 18
[pid 23135] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23135] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23135] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23135] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23135] exit_group(0)               = ?
[pid 23135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23135, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22552", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22552", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22552/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22552/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22552/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22552")                        = 0
mkdir("./22553", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23136
./strace-static-x86_64: Process 23136 attached
[pid 23136] set_robust_list(0x55557a32b660, 24) = 0
[pid 23136] chdir("./22553")            = 0
[pid 23136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23136] setpgid(0, 0)               = 0
[pid 23136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23136] write(3, "1000", 4)         = 4
[pid 23136] close(3)                    = 0
[pid 23136] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23136] write(1, "executing program\n", 18executing program
) = 18
[pid 23136] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23136] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23136] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23136] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23136] exit_group(0)               = ?
[pid 23136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23136, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22553", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22553", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22553/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22553/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22553/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22553")                        = 0
mkdir("./22554", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23137
./strace-static-x86_64: Process 23137 attached
[pid 23137] set_robust_list(0x55557a32b660, 24) = 0
[pid 23137] chdir("./22554")            = 0
[pid 23137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23137] setpgid(0, 0)               = 0
[pid 23137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23137] write(3, "1000", 4)         = 4
[pid 23137] close(3)                    = 0
[pid 23137] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23137] write(1, "executing program\n", 18executing program
) = 18
[pid 23137] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23137] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23137] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23137] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23137] exit_group(0)               = ?
[pid 23137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23137, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22554", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22554", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22554/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22554/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22554/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22554")                        = 0
mkdir("./22555", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23138
./strace-static-x86_64: Process 23138 attached
[pid 23138] set_robust_list(0x55557a32b660, 24) = 0
[pid 23138] chdir("./22555")            = 0
[pid 23138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23138] setpgid(0, 0)               = 0
[pid 23138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23138] write(3, "1000", 4)         = 4
[pid 23138] close(3)                    = 0
[pid 23138] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23138] write(1, "executing program\n", 18executing program
) = 18
[pid 23138] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23138] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23138] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23138] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23138] exit_group(0)               = ?
[pid 23138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22555", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22555", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22555/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22555/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22555/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22555")                        = 0
mkdir("./22556", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23139
./strace-static-x86_64: Process 23139 attached
[pid 23139] set_robust_list(0x55557a32b660, 24) = 0
[pid 23139] chdir("./22556")            = 0
[pid 23139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23139] setpgid(0, 0)               = 0
[pid 23139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23139] write(3, "1000", 4)         = 4
[pid 23139] close(3)                    = 0
[pid 23139] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23139] write(1, "executing program\n", 18executing program
) = 18
[pid 23139] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23139] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23139] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23139] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23139] exit_group(0)               = ?
[pid 23139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23139, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22556", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22556", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22556/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22556/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22556/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22556")                        = 0
mkdir("./22557", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23140
./strace-static-x86_64: Process 23140 attached
[pid 23140] set_robust_list(0x55557a32b660, 24) = 0
[pid 23140] chdir("./22557")            = 0
[pid 23140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23140] setpgid(0, 0)               = 0
[pid 23140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23140] write(3, "1000", 4)         = 4
[pid 23140] close(3)                    = 0
[pid 23140] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23140] write(1, "executing program\n", 18executing program
) = 18
[pid 23140] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23140] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23140] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23140] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23140] exit_group(0)               = ?
[pid 23140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22557", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22557", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22557/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22557/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22557/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22557")                        = 0
mkdir("./22558", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23141
./strace-static-x86_64: Process 23141 attached
[pid 23141] set_robust_list(0x55557a32b660, 24) = 0
[pid 23141] chdir("./22558")            = 0
[pid 23141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23141] setpgid(0, 0)               = 0
[pid 23141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23141] write(3, "1000", 4)         = 4
[pid 23141] close(3)                    = 0
[pid 23141] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23141] write(1, "executing program\n", 18executing program
) = 18
[pid 23141] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23141] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23141] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23141] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23141] exit_group(0)               = ?
[pid 23141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23141, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22558", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22558", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22558/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22558/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22558/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22558")                        = 0
mkdir("./22559", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23142 attached
, child_tidptr=0x55557a32b650) = 23142
[pid 23142] set_robust_list(0x55557a32b660, 24) = 0
[pid 23142] chdir("./22559")            = 0
[pid 23142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23142] setpgid(0, 0)               = 0
[pid 23142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23142] write(3, "1000", 4)         = 4
[pid 23142] close(3)                    = 0
[pid 23142] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23142] write(1, "executing program\n", 18executing program
) = 18
[pid 23142] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23142] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23142] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23142] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23142] exit_group(0)               = ?
[pid 23142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23142, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22559", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22559", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22559/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22559/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22559/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22559")                        = 0
mkdir("./22560", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23143
./strace-static-x86_64: Process 23143 attached
[pid 23143] set_robust_list(0x55557a32b660, 24) = 0
[pid 23143] chdir("./22560")            = 0
[pid 23143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23143] setpgid(0, 0)               = 0
[pid 23143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23143] write(3, "1000", 4)         = 4
[pid 23143] close(3)                    = 0
[pid 23143] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23143] write(1, "executing program\n", 18executing program
) = 18
[pid 23143] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23143] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23143] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23143] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23143] exit_group(0)               = ?
[pid 23143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23143, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22560", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22560", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22560/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22560/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22560/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22560")                        = 0
mkdir("./22561", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23144
./strace-static-x86_64: Process 23144 attached
[pid 23144] set_robust_list(0x55557a32b660, 24) = 0
[pid 23144] chdir("./22561")            = 0
[pid 23144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23144] setpgid(0, 0)               = 0
[pid 23144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23144] write(3, "1000", 4)         = 4
[pid 23144] close(3)                    = 0
[pid 23144] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23144] write(1, "executing program\n", 18executing program
) = 18
[pid 23144] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23144] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23144] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23144] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23144] exit_group(0)               = ?
[pid 23144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22561", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22561", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22561/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22561/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22561/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22561")                        = 0
mkdir("./22562", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23145
./strace-static-x86_64: Process 23145 attached
[pid 23145] set_robust_list(0x55557a32b660, 24) = 0
[pid 23145] chdir("./22562")            = 0
[pid 23145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23145] setpgid(0, 0)               = 0
[pid 23145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23145] write(3, "1000", 4)         = 4
[pid 23145] close(3)                    = 0
[pid 23145] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23145] write(1, "executing program\n", 18executing program
) = 18
[pid 23145] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23145] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23145] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23145] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23145] exit_group(0)               = ?
[pid 23145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23145, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22562", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22562", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22562/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22562/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22562/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22562")                        = 0
mkdir("./22563", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23146
./strace-static-x86_64: Process 23146 attached
[pid 23146] set_robust_list(0x55557a32b660, 24) = 0
[pid 23146] chdir("./22563")            = 0
[pid 23146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23146] setpgid(0, 0)               = 0
[pid 23146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23146] write(3, "1000", 4)         = 4
[pid 23146] close(3)                    = 0
[pid 23146] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23146] write(1, "executing program\n", 18executing program
) = 18
[pid 23146] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23146] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23146] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23146] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23146] exit_group(0)               = ?
[pid 23146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23146, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22563", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22563", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22563/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22563/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22563/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22563")                        = 0
mkdir("./22564", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23147
./strace-static-x86_64: Process 23147 attached
[pid 23147] set_robust_list(0x55557a32b660, 24) = 0
[pid 23147] chdir("./22564")            = 0
[pid 23147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23147] setpgid(0, 0)               = 0
[pid 23147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23147] write(3, "1000", 4)         = 4
[pid 23147] close(3)                    = 0
[pid 23147] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23147] write(1, "executing program\n", 18executing program
) = 18
[pid 23147] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23147] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23147] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23147] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23147] exit_group(0)               = ?
[pid 23147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23147, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22564", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22564", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22564/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22564/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22564/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22564")                        = 0
mkdir("./22565", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23148 attached
, child_tidptr=0x55557a32b650) = 23148
[pid 23148] set_robust_list(0x55557a32b660, 24) = 0
[pid 23148] chdir("./22565")            = 0
[pid 23148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23148] setpgid(0, 0)               = 0
[pid 23148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23148] write(3, "1000", 4)         = 4
[pid 23148] close(3)                    = 0
[pid 23148] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23148] write(1, "executing program\n", 18executing program
) = 18
[pid 23148] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23148] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23148] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23148] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23148] exit_group(0)               = ?
[pid 23148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23148, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22565", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22565", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22565/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22565/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22565/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22565")                        = 0
mkdir("./22566", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23149
./strace-static-x86_64: Process 23149 attached
[pid 23149] set_robust_list(0x55557a32b660, 24) = 0
[pid 23149] chdir("./22566")            = 0
[pid 23149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23149] setpgid(0, 0)               = 0
[pid 23149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23149] write(3, "1000", 4)         = 4
[pid 23149] close(3)                    = 0
[pid 23149] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23149] write(1, "executing program\n", 18executing program
) = 18
[pid 23149] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23149] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23149] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23149] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23149] exit_group(0)               = ?
[pid 23149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23149, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22566", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22566", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22566/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22566/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22566/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22566")                        = 0
mkdir("./22567", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23150
./strace-static-x86_64: Process 23150 attached
[pid 23150] set_robust_list(0x55557a32b660, 24) = 0
[pid 23150] chdir("./22567")            = 0
[pid 23150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23150] setpgid(0, 0)               = 0
[pid 23150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23150] write(3, "1000", 4)         = 4
[pid 23150] close(3)                    = 0
[pid 23150] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23150] write(1, "executing program\n", 18executing program
) = 18
[pid 23150] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23150] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23150] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23150] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23150] exit_group(0)               = ?
[pid 23150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22567", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22567", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22567/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22567/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22567/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22567")                        = 0
mkdir("./22568", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23151 attached
, child_tidptr=0x55557a32b650) = 23151
[pid 23151] set_robust_list(0x55557a32b660, 24) = 0
[pid 23151] chdir("./22568")            = 0
[pid 23151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23151] setpgid(0, 0)               = 0
[pid 23151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23151] write(3, "1000", 4)         = 4
[pid 23151] close(3)                    = 0
[pid 23151] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23151] write(1, "executing program\n", 18executing program
) = 18
[pid 23151] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23151] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23151] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23151] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23151] exit_group(0)               = ?
[pid 23151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23151, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22568", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22568", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22568/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22568/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22568/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22568")                        = 0
mkdir("./22569", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23152 attached
, child_tidptr=0x55557a32b650) = 23152
[pid 23152] set_robust_list(0x55557a32b660, 24) = 0
[pid 23152] chdir("./22569")            = 0
[pid 23152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23152] setpgid(0, 0)               = 0
[pid 23152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23152] write(3, "1000", 4)         = 4
[pid 23152] close(3)                    = 0
[pid 23152] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23152] write(1, "executing program\n", 18) = 18
[pid 23152] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23152] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23152] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23152] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23152] exit_group(0)               = ?
[pid 23152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23152, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22569", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22569", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22569/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22569/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22569/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22569")                        = 0
mkdir("./22570", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23153
./strace-static-x86_64: Process 23153 attached
[pid 23153] set_robust_list(0x55557a32b660, 24) = 0
[pid 23153] chdir("./22570")            = 0
[pid 23153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23153] setpgid(0, 0)               = 0
[pid 23153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23153] write(3, "1000", 4)         = 4
[pid 23153] close(3)                    = 0
[pid 23153] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23153] write(1, "executing program\n", 18) = 18
[pid 23153] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23153] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23153] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23153] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23153] exit_group(0)               = ?
[pid 23153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23153, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22570", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22570", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22570/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22570/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22570/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22570")                        = 0
mkdir("./22571", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23154 attached
, child_tidptr=0x55557a32b650) = 23154
[pid 23154] set_robust_list(0x55557a32b660, 24) = 0
[pid 23154] chdir("./22571")            = 0
[pid 23154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23154] setpgid(0, 0)               = 0
[pid 23154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23154] write(3, "1000", 4)         = 4
[pid 23154] close(3)                    = 0
[pid 23154] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23154] write(1, "executing program\n", 18executing program
) = 18
[pid 23154] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23154] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23154] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23154] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23154] exit_group(0)               = ?
[pid 23154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22571", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22571", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22571/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22571/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22571/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22571")                        = 0
mkdir("./22572", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23155 attached
, child_tidptr=0x55557a32b650) = 23155
[pid 23155] set_robust_list(0x55557a32b660, 24) = 0
[pid 23155] chdir("./22572")            = 0
[pid 23155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23155] setpgid(0, 0)               = 0
[pid 23155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23155] write(3, "1000", 4)         = 4
[pid 23155] close(3)                    = 0
[pid 23155] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23155] write(1, "executing program\n", 18executing program
) = 18
[pid 23155] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23155] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23155] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23155] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23155] exit_group(0)               = ?
[pid 23155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23155, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22572", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22572", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22572/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22572/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22572/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22572")                        = 0
mkdir("./22573", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23156
./strace-static-x86_64: Process 23156 attached
[pid 23156] set_robust_list(0x55557a32b660, 24) = 0
[pid 23156] chdir("./22573")            = 0
[pid 23156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23156] setpgid(0, 0)               = 0
[pid 23156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23156] write(3, "1000", 4)         = 4
[pid 23156] close(3)                    = 0
[pid 23156] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23156] write(1, "executing program\n", 18executing program
) = 18
[pid 23156] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23156] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23156] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23156] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23156] exit_group(0)               = ?
[pid 23156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23156, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22573", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22573", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22573/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22573/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22573/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22573")                        = 0
mkdir("./22574", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23157
./strace-static-x86_64: Process 23157 attached
[pid 23157] set_robust_list(0x55557a32b660, 24) = 0
[pid 23157] chdir("./22574")            = 0
[pid 23157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23157] setpgid(0, 0)               = 0
[pid 23157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23157] write(3, "1000", 4)         = 4
[pid 23157] close(3)                    = 0
[pid 23157] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23157] write(1, "executing program\n", 18) = 18
[pid 23157] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23157] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23157] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23157] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23157] exit_group(0)               = ?
[pid 23157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23157, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22574", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22574", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22574/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22574/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22574/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22574")                        = 0
mkdir("./22575", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23158
./strace-static-x86_64: Process 23158 attached
[pid 23158] set_robust_list(0x55557a32b660, 24) = 0
[pid 23158] chdir("./22575")            = 0
[pid 23158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23158] setpgid(0, 0)               = 0
[pid 23158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23158] write(3, "1000", 4)         = 4
[pid 23158] close(3)                    = 0
executing program
[pid 23158] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23158] write(1, "executing program\n", 18) = 18
[pid 23158] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23158] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23158] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23158] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23158] exit_group(0)               = ?
[pid 23158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22575", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22575", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22575/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22575/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22575/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22575")                        = 0
mkdir("./22576", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23159
./strace-static-x86_64: Process 23159 attached
[pid 23159] set_robust_list(0x55557a32b660, 24) = 0
[pid 23159] chdir("./22576")            = 0
[pid 23159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23159] setpgid(0, 0)               = 0
[pid 23159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23159] write(3, "1000", 4)         = 4
[pid 23159] close(3)                    = 0
[pid 23159] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23159] write(1, "executing program\n", 18executing program
) = 18
[pid 23159] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23159] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23159] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23159] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23159] exit_group(0)               = ?
[pid 23159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23159, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22576", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22576", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22576/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22576/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22576/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22576")                        = 0
mkdir("./22577", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23160 attached
, child_tidptr=0x55557a32b650) = 23160
[pid 23160] set_robust_list(0x55557a32b660, 24) = 0
[pid 23160] chdir("./22577")            = 0
[pid 23160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23160] setpgid(0, 0)               = 0
[pid 23160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23160] write(3, "1000", 4)         = 4
[pid 23160] close(3)                    = 0
[pid 23160] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23160] write(1, "executing program\n", 18executing program
) = 18
[pid 23160] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23160] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23160] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23160] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23160] exit_group(0)               = ?
[pid 23160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23160, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22577", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22577", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22577/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22577/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22577/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22577")                        = 0
mkdir("./22578", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23161
./strace-static-x86_64: Process 23161 attached
[pid 23161] set_robust_list(0x55557a32b660, 24) = 0
[pid 23161] chdir("./22578")            = 0
[pid 23161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23161] setpgid(0, 0)               = 0
[pid 23161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23161] write(3, "1000", 4)         = 4
[pid 23161] close(3)                    = 0
[pid 23161] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23161] write(1, "executing program\n", 18) = 18
[pid 23161] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23161] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23161] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23161] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23161] exit_group(0)               = ?
[pid 23161] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23161, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22578", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22578", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22578/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22578/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22578/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22578")                        = 0
mkdir("./22579", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23162 attached
, child_tidptr=0x55557a32b650) = 23162
[pid 23162] set_robust_list(0x55557a32b660, 24) = 0
[pid 23162] chdir("./22579")            = 0
[pid 23162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23162] setpgid(0, 0)               = 0
[pid 23162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23162] write(3, "1000", 4)         = 4
[pid 23162] close(3)                    = 0
[pid 23162] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23162] write(1, "executing program\n", 18executing program
) = 18
[pid 23162] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23162] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23162] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23162] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23162] exit_group(0)               = ?
[pid 23162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23162, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22579", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22579", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22579/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22579/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22579/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22579")                        = 0
mkdir("./22580", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23163 attached
, child_tidptr=0x55557a32b650) = 23163
[pid 23163] set_robust_list(0x55557a32b660, 24) = 0
[pid 23163] chdir("./22580")            = 0
[pid 23163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23163] setpgid(0, 0)               = 0
[pid 23163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23163] write(3, "1000", 4)         = 4
[pid 23163] close(3)                    = 0
[pid 23163] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23163] write(1, "executing program\n", 18executing program
) = 18
[pid 23163] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23163] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23163] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23163] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23163] exit_group(0)               = ?
[pid 23163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23163, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22580", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22580", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22580/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22580/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22580/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22580")                        = 0
mkdir("./22581", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23164
./strace-static-x86_64: Process 23164 attached
[pid 23164] set_robust_list(0x55557a32b660, 24) = 0
[pid 23164] chdir("./22581")            = 0
[pid 23164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23164] setpgid(0, 0)               = 0
[pid 23164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23164] write(3, "1000", 4)         = 4
[pid 23164] close(3)                    = 0
[pid 23164] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23164] write(1, "executing program\n", 18executing program
) = 18
[pid 23164] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23164] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23164] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23164] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23164] exit_group(0)               = ?
[pid 23164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22581", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22581", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22581/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22581/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22581/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22581")                        = 0
mkdir("./22582", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23165 attached
, child_tidptr=0x55557a32b650) = 23165
[pid 23165] set_robust_list(0x55557a32b660, 24) = 0
[pid 23165] chdir("./22582")            = 0
[pid 23165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23165] setpgid(0, 0)               = 0
[pid 23165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23165] write(3, "1000", 4)         = 4
[pid 23165] close(3)                    = 0
[pid 23165] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23165] write(1, "executing program\n", 18executing program
) = 18
[pid 23165] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23165] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23165] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23165] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23165] exit_group(0)               = ?
[pid 23165] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23165, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22582", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22582", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22582/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22582/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22582/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22582")                        = 0
mkdir("./22583", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23166 attached
, child_tidptr=0x55557a32b650) = 23166
[pid 23166] set_robust_list(0x55557a32b660, 24) = 0
[pid 23166] chdir("./22583")            = 0
[pid 23166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23166] setpgid(0, 0)               = 0
[pid 23166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23166] write(3, "1000", 4)         = 4
[pid 23166] close(3)                    = 0
[pid 23166] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23166] write(1, "executing program\n", 18executing program
) = 18
[pid 23166] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23166] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23166] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23166] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23166] exit_group(0)               = ?
[pid 23166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23166, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22583", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22583", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22583/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22583/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22583/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22583")                        = 0
mkdir("./22584", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23167
./strace-static-x86_64: Process 23167 attached
[pid 23167] set_robust_list(0x55557a32b660, 24) = 0
[pid 23167] chdir("./22584")            = 0
[pid 23167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23167] setpgid(0, 0)               = 0
[pid 23167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23167] write(3, "1000", 4)         = 4
[pid 23167] close(3)                    = 0
[pid 23167] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23167] write(1, "executing program\n", 18executing program
) = 18
[pid 23167] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23167] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23167] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23167] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23167] exit_group(0)               = ?
[pid 23167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23167, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22584", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22584", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22584/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22584/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22584/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22584")                        = 0
mkdir("./22585", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23168
./strace-static-x86_64: Process 23168 attached
[pid 23168] set_robust_list(0x55557a32b660, 24) = 0
[pid 23168] chdir("./22585")            = 0
[pid 23168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23168] setpgid(0, 0)               = 0
[pid 23168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23168] write(3, "1000", 4)         = 4
[pid 23168] close(3)                    = 0
[pid 23168] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23168] write(1, "executing program\n", 18executing program
) = 18
[pid 23168] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23168] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23168] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23168] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23168] exit_group(0)               = ?
[pid 23168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22585", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22585", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22585/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22585/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22585/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22585")                        = 0
mkdir("./22586", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23169
./strace-static-x86_64: Process 23169 attached
[pid 23169] set_robust_list(0x55557a32b660, 24) = 0
[pid 23169] chdir("./22586")            = 0
[pid 23169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23169] setpgid(0, 0)               = 0
[pid 23169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23169] write(3, "1000", 4)         = 4
[pid 23169] close(3)                    = 0
[pid 23169] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23169] write(1, "executing program\n", 18) = 18
[pid 23169] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23169] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23169] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23169] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23169] exit_group(0)               = ?
[pid 23169] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23169, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22586", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22586", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22586/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22586/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22586/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22586")                        = 0
mkdir("./22587", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23170
./strace-static-x86_64: Process 23170 attached
[pid 23170] set_robust_list(0x55557a32b660, 24) = 0
[pid 23170] chdir("./22587")            = 0
[pid 23170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23170] setpgid(0, 0)               = 0
[pid 23170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23170] write(3, "1000", 4)         = 4
[pid 23170] close(3)                    = 0
[pid 23170] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23170] write(1, "executing program\n", 18) = 18
[pid 23170] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23170] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23170] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23170] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23170] exit_group(0)               = ?
[pid 23170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23170, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22587", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22587", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22587/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22587/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22587/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22587")                        = 0
mkdir("./22588", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23171
./strace-static-x86_64: Process 23171 attached
[pid 23171] set_robust_list(0x55557a32b660, 24) = 0
[pid 23171] chdir("./22588")            = 0
[pid 23171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23171] setpgid(0, 0)               = 0
[pid 23171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23171] write(3, "1000", 4)         = 4
[pid 23171] close(3)                    = 0
[pid 23171] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23171] write(1, "executing program\n", 18) = 18
[pid 23171] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23171] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23171] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23171] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23171] exit_group(0)               = ?
[pid 23171] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23171, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22588", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22588", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22588/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22588/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22588/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22588")                        = 0
mkdir("./22589", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23172
./strace-static-x86_64: Process 23172 attached
[pid 23172] set_robust_list(0x55557a32b660, 24) = 0
[pid 23172] chdir("./22589")            = 0
[pid 23172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23172] setpgid(0, 0)               = 0
[pid 23172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23172] write(3, "1000", 4)         = 4
[pid 23172] close(3)                    = 0
[pid 23172] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23172] write(1, "executing program\n", 18) = 18
[pid 23172] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23172] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23172] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23172] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23172] exit_group(0)               = ?
[pid 23172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23172, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22589", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22589", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22589/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22589/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22589/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22589")                        = 0
mkdir("./22590", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23173
./strace-static-x86_64: Process 23173 attached
[pid 23173] set_robust_list(0x55557a32b660, 24) = 0
[pid 23173] chdir("./22590")            = 0
[pid 23173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23173] setpgid(0, 0)               = 0
[pid 23173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23173] write(3, "1000", 4)         = 4
[pid 23173] close(3)                    = 0
[pid 23173] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23173] write(1, "executing program\n", 18executing program
) = 18
[pid 23173] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23173] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23173] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23173] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23173] exit_group(0)               = ?
[pid 23173] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23173, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22590", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22590", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22590/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22590/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22590/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22590")                        = 0
mkdir("./22591", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23174 attached
, child_tidptr=0x55557a32b650) = 23174
[pid 23174] set_robust_list(0x55557a32b660, 24) = 0
[pid 23174] chdir("./22591")            = 0
[pid 23174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23174] setpgid(0, 0)               = 0
[pid 23174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23174] write(3, "1000", 4)         = 4
[pid 23174] close(3)                    = 0
[pid 23174] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23174] write(1, "executing program\n", 18executing program
) = 18
[pid 23174] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23174] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23174] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23174] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23174] exit_group(0)               = ?
[pid 23174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23174, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22591", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22591", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22591/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22591/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22591/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22591")                        = 0
mkdir("./22592", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23175
./strace-static-x86_64: Process 23175 attached
[pid 23175] set_robust_list(0x55557a32b660, 24) = 0
[pid 23175] chdir("./22592")            = 0
[pid 23175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23175] setpgid(0, 0)               = 0
[pid 23175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23175] write(3, "1000", 4)         = 4
[pid 23175] close(3)                    = 0
[pid 23175] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23175] write(1, "executing program\n", 18executing program
) = 18
[pid 23175] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23175] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23175] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23175] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23175] exit_group(0)               = ?
[pid 23175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23175, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22592", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22592", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22592/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22592/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22592/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22592")                        = 0
mkdir("./22593", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23176 attached
, child_tidptr=0x55557a32b650) = 23176
[pid 23176] set_robust_list(0x55557a32b660, 24) = 0
[pid 23176] chdir("./22593")            = 0
[pid 23176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23176] setpgid(0, 0)               = 0
[pid 23176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23176] write(3, "1000", 4)         = 4
[pid 23176] close(3)                    = 0
[pid 23176] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23176] write(1, "executing program\n", 18executing program
) = 18
[pid 23176] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23176] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23176] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23176] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23176] exit_group(0)               = ?
[pid 23176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23176, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22593", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22593", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22593/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22593/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22593/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22593")                        = 0
mkdir("./22594", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23177
./strace-static-x86_64: Process 23177 attached
[pid 23177] set_robust_list(0x55557a32b660, 24) = 0
[pid 23177] chdir("./22594")            = 0
[pid 23177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23177] setpgid(0, 0)               = 0
[pid 23177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23177] write(3, "1000", 4)         = 4
[pid 23177] close(3)                    = 0
[pid 23177] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23177] write(1, "executing program\n", 18executing program
) = 18
[pid 23177] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23177] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23177] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23177] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23177] exit_group(0)               = ?
[pid 23177] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23177, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22594", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22594", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22594/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22594/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22594/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22594")                        = 0
mkdir("./22595", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23178
./strace-static-x86_64: Process 23178 attached
[pid 23178] set_robust_list(0x55557a32b660, 24) = 0
[pid 23178] chdir("./22595")            = 0
[pid 23178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23178] setpgid(0, 0)               = 0
[pid 23178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23178] write(3, "1000", 4)         = 4
[pid 23178] close(3)                    = 0
[pid 23178] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23178] write(1, "executing program\n", 18executing program
) = 18
[pid 23178] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23178] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23178] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23178] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23178] exit_group(0)               = ?
[pid 23178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23178, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22595", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22595", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22595/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22595/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22595/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22595")                        = 0
mkdir("./22596", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23179
./strace-static-x86_64: Process 23179 attached
[pid 23179] set_robust_list(0x55557a32b660, 24) = 0
[pid 23179] chdir("./22596")            = 0
[pid 23179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23179] setpgid(0, 0)               = 0
[pid 23179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23179] write(3, "1000", 4)         = 4
[pid 23179] close(3)                    = 0
[pid 23179] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23179] write(1, "executing program\n", 18executing program
) = 18
[pid 23179] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23179] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23179] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23179] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23179] exit_group(0)               = ?
[pid 23179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23179, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22596", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22596", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22596/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22596/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22596/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22596")                        = 0
mkdir("./22597", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23180 attached
, child_tidptr=0x55557a32b650) = 23180
[pid 23180] set_robust_list(0x55557a32b660, 24) = 0
[pid 23180] chdir("./22597")            = 0
[pid 23180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23180] setpgid(0, 0)               = 0
[pid 23180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23180] write(3, "1000", 4)         = 4
[pid 23180] close(3)                    = 0
[pid 23180] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23180] write(1, "executing program\n", 18) = 18
[pid 23180] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23180] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23180] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23180] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23180] exit_group(0)               = ?
[pid 23180] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23180, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22597", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22597", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22597/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22597/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22597/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22597")                        = 0
mkdir("./22598", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23181
./strace-static-x86_64: Process 23181 attached
[pid 23181] set_robust_list(0x55557a32b660, 24) = 0
[pid 23181] chdir("./22598")            = 0
[pid 23181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23181] setpgid(0, 0)               = 0
[pid 23181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23181] write(3, "1000", 4)         = 4
[pid 23181] close(3)                    = 0
[pid 23181] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23181] write(1, "executing program\n", 18executing program
) = 18
[pid 23181] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23181] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23181] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23181] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23181] exit_group(0)               = ?
[pid 23181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23181, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22598", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22598", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22598/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22598/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22598/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22598")                        = 0
mkdir("./22599", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23182 attached
, child_tidptr=0x55557a32b650) = 23182
[pid 23182] set_robust_list(0x55557a32b660, 24) = 0
[pid 23182] chdir("./22599")            = 0
[pid 23182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23182] setpgid(0, 0)               = 0
[pid 23182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23182] write(3, "1000", 4)         = 4
[pid 23182] close(3)                    = 0
[pid 23182] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23182] write(1, "executing program\n", 18executing program
) = 18
[pid 23182] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23182] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23182] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23182] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23182] exit_group(0)               = ?
[pid 23182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23182, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22599", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22599", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22599/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22599/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22599/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22599")                        = 0
mkdir("./22600", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23183
./strace-static-x86_64: Process 23183 attached
[pid 23183] set_robust_list(0x55557a32b660, 24) = 0
[pid 23183] chdir("./22600")            = 0
[pid 23183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23183] setpgid(0, 0)               = 0
[pid 23183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23183] write(3, "1000", 4)         = 4
[pid 23183] close(3)                    = 0
[pid 23183] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23183] write(1, "executing program\n", 18executing program
) = 18
[pid 23183] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23183] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23183] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23183] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23183] exit_group(0)               = ?
[pid 23183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23183, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22600", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22600", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22600/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22600/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22600/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22600")                        = 0
mkdir("./22601", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23184
./strace-static-x86_64: Process 23184 attached
[pid 23184] set_robust_list(0x55557a32b660, 24) = 0
[pid 23184] chdir("./22601")            = 0
[pid 23184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23184] setpgid(0, 0)               = 0
[pid 23184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23184] write(3, "1000", 4)         = 4
[pid 23184] close(3)                    = 0
[pid 23184] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23184] write(1, "executing program\n", 18executing program
) = 18
[pid 23184] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23184] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23184] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23184] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23184] exit_group(0)               = ?
[pid 23184] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23184, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22601", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22601", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22601/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22601/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22601/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22601")                        = 0
mkdir("./22602", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23185
./strace-static-x86_64: Process 23185 attached
[pid 23185] set_robust_list(0x55557a32b660, 24) = 0
[pid 23185] chdir("./22602")            = 0
[pid 23185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23185] setpgid(0, 0)               = 0
[pid 23185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23185] write(3, "1000", 4)         = 4
[pid 23185] close(3)                    = 0
[pid 23185] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23185] write(1, "executing program\n", 18executing program
) = 18
[pid 23185] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23185] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23185] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23185] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23185] exit_group(0)               = ?
[pid 23185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23185, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22602", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22602", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22602/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22602/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22602/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22602")                        = 0
mkdir("./22603", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23186
./strace-static-x86_64: Process 23186 attached
[pid 23186] set_robust_list(0x55557a32b660, 24) = 0
[pid 23186] chdir("./22603")            = 0
[pid 23186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23186] setpgid(0, 0)               = 0
[pid 23186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23186] write(3, "1000", 4)         = 4
[pid 23186] close(3)                    = 0
[pid 23186] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23186] write(1, "executing program\n", 18executing program
) = 18
[pid 23186] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23186] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23186] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23186] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23186] exit_group(0)               = ?
[pid 23186] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23186, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22603", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22603", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22603/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22603/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22603/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22603")                        = 0
mkdir("./22604", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23187
./strace-static-x86_64: Process 23187 attached
[pid 23187] set_robust_list(0x55557a32b660, 24) = 0
[pid 23187] chdir("./22604")            = 0
[pid 23187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23187] setpgid(0, 0)               = 0
[pid 23187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23187] write(3, "1000", 4)         = 4
[pid 23187] close(3)                    = 0
[pid 23187] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23187] write(1, "executing program\n", 18executing program
) = 18
[pid 23187] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23187] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23187] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23187] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23187] exit_group(0)               = ?
[pid 23187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23187, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22604", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22604", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22604/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22604/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22604/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22604")                        = 0
mkdir("./22605", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23188 attached
, child_tidptr=0x55557a32b650) = 23188
[pid 23188] set_robust_list(0x55557a32b660, 24) = 0
[pid 23188] chdir("./22605")            = 0
[pid 23188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23188] setpgid(0, 0)               = 0
[pid 23188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23188] write(3, "1000", 4)         = 4
[pid 23188] close(3)                    = 0
[pid 23188] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23188] write(1, "executing program\n", 18executing program
) = 18
[pid 23188] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23188] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23188] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23188] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23188] exit_group(0)               = ?
[pid 23188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23188, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22605", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22605", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22605/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22605/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22605/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22605")                        = 0
mkdir("./22606", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23189 attached
, child_tidptr=0x55557a32b650) = 23189
[pid 23189] set_robust_list(0x55557a32b660, 24) = 0
[pid 23189] chdir("./22606")            = 0
[pid 23189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23189] setpgid(0, 0)               = 0
[pid 23189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23189] write(3, "1000", 4)         = 4
[pid 23189] close(3)                    = 0
[pid 23189] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23189] write(1, "executing program\n", 18executing program
) = 18
[pid 23189] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23189] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23189] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23189] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23189] exit_group(0)               = ?
[pid 23189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23189, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22606", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22606", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22606/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22606/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22606/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22606")                        = 0
mkdir("./22607", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23190
./strace-static-x86_64: Process 23190 attached
[pid 23190] set_robust_list(0x55557a32b660, 24) = 0
[pid 23190] chdir("./22607")            = 0
[pid 23190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23190] setpgid(0, 0)               = 0
[pid 23190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23190] write(3, "1000", 4)         = 4
[pid 23190] close(3)                    = 0
[pid 23190] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23190] write(1, "executing program\n", 18executing program
) = 18
[pid 23190] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23190] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23190] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23190] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23190] exit_group(0)               = ?
[pid 23190] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23190, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22607", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22607", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22607/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22607/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22607/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22607")                        = 0
mkdir("./22608", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23191
./strace-static-x86_64: Process 23191 attached
[pid 23191] set_robust_list(0x55557a32b660, 24) = 0
[pid 23191] chdir("./22608")            = 0
[pid 23191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23191] setpgid(0, 0)               = 0
[pid 23191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23191] write(3, "1000", 4)         = 4
[pid 23191] close(3)                    = 0
[pid 23191] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23191] write(1, "executing program\n", 18executing program
) = 18
[pid 23191] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23191] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23191] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23191] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23191] exit_group(0)               = ?
[pid 23191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23191, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22608", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22608", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22608/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22608/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22608/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22608")                        = 0
mkdir("./22609", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23192
./strace-static-x86_64: Process 23192 attached
[pid 23192] set_robust_list(0x55557a32b660, 24) = 0
[pid 23192] chdir("./22609")            = 0
[pid 23192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23192] setpgid(0, 0)               = 0
[pid 23192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23192] write(3, "1000", 4)         = 4
[pid 23192] close(3)                    = 0
[pid 23192] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23192] write(1, "executing program\n", 18) = 18
[pid 23192] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23192] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23192] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23192] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23192] exit_group(0)               = ?
[pid 23192] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23192, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22609", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22609", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22609/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22609/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22609/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22609")                        = 0
mkdir("./22610", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23193
./strace-static-x86_64: Process 23193 attached
[pid 23193] set_robust_list(0x55557a32b660, 24) = 0
[pid 23193] chdir("./22610")            = 0
[pid 23193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23193] setpgid(0, 0)               = 0
[pid 23193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23193] write(3, "1000", 4)         = 4
[pid 23193] close(3)                    = 0
[pid 23193] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23193] write(1, "executing program\n", 18executing program
) = 18
[pid 23193] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23193] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23193] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23193] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23193] exit_group(0)               = ?
[pid 23193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23193, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22610", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22610", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22610/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22610/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22610/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22610")                        = 0
mkdir("./22611", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23194
./strace-static-x86_64: Process 23194 attached
[pid 23194] set_robust_list(0x55557a32b660, 24) = 0
[pid 23194] chdir("./22611")            = 0
[pid 23194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23194] setpgid(0, 0)               = 0
[pid 23194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23194] write(3, "1000", 4)         = 4
[pid 23194] close(3)                    = 0
[pid 23194] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23194] write(1, "executing program\n", 18) = 18
[pid 23194] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23194] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23194] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23194] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23194] exit_group(0)               = ?
[pid 23194] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23194, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22611", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22611", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22611/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22611/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22611/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22611")                        = 0
mkdir("./22612", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23195 attached
, child_tidptr=0x55557a32b650) = 23195
[pid 23195] set_robust_list(0x55557a32b660, 24) = 0
[pid 23195] chdir("./22612")            = 0
[pid 23195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23195] setpgid(0, 0)               = 0
[pid 23195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23195] write(3, "1000", 4)         = 4
[pid 23195] close(3)                    = 0
[pid 23195] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23195] write(1, "executing program\n", 18executing program
) = 18
[pid 23195] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23195] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23195] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23195] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23195] exit_group(0)               = ?
[pid 23195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23195, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22612", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22612", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22612/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22612/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22612/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22612")                        = 0
mkdir("./22613", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23196 attached
, child_tidptr=0x55557a32b650) = 23196
[pid 23196] set_robust_list(0x55557a32b660, 24) = 0
[pid 23196] chdir("./22613")            = 0
[pid 23196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23196] setpgid(0, 0)               = 0
[pid 23196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23196] write(3, "1000", 4)         = 4
[pid 23196] close(3)                    = 0
[pid 23196] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23196] write(1, "executing program\n", 18executing program
) = 18
[pid 23196] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23196] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23196] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23196] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23196] exit_group(0)               = ?
[pid 23196] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23196, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22613", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22613", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22613/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22613/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22613/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22613")                        = 0
mkdir("./22614", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23197
./strace-static-x86_64: Process 23197 attached
[pid 23197] set_robust_list(0x55557a32b660, 24) = 0
[pid 23197] chdir("./22614")            = 0
[pid 23197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23197] setpgid(0, 0)               = 0
[pid 23197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23197] write(3, "1000", 4)         = 4
[pid 23197] close(3)                    = 0
[pid 23197] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23197] write(1, "executing program\n", 18executing program
) = 18
[pid 23197] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23197] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23197] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23197] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23197] exit_group(0)               = ?
[pid 23197] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23197, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22614", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22614", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22614/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22614/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22614/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22614")                        = 0
mkdir("./22615", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23198 attached
 <unfinished ...>
[pid 23198] set_robust_list(0x55557a32b660, 24) = 0
[pid 23198] chdir("./22615")            = 0
[pid 23198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23198] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23198
[pid 23198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23198] write(3, "1000", 4)         = 4
[pid 23198] close(3)                    = 0
[pid 23198] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23198] write(1, "executing program\n", 18executing program
) = 18
[pid 23198] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23198] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23198] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23198] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23198] exit_group(0)               = ?
[pid 23198] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23198, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22615", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22615", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22615/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22615/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22615/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22615")                        = 0
mkdir("./22616", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23199
./strace-static-x86_64: Process 23199 attached
[pid 23199] set_robust_list(0x55557a32b660, 24) = 0
[pid 23199] chdir("./22616")            = 0
[pid 23199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23199] setpgid(0, 0)               = 0
[pid 23199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23199] write(3, "1000", 4)         = 4
[pid 23199] close(3)                    = 0
[pid 23199] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23199] write(1, "executing program\n", 18executing program
) = 18
[pid 23199] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23199] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23199] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23199] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23199] exit_group(0)               = ?
[pid 23199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23199, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22616", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22616", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22616/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22616/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22616/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22616")                        = 0
mkdir("./22617", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23200
./strace-static-x86_64: Process 23200 attached
[pid 23200] set_robust_list(0x55557a32b660, 24) = 0
[pid 23200] chdir("./22617")            = 0
[pid 23200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23200] setpgid(0, 0)               = 0
[pid 23200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23200] write(3, "1000", 4)         = 4
[pid 23200] close(3)                    = 0
[pid 23200] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23200] write(1, "executing program\n", 18executing program
) = 18
[pid 23200] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23200] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23200] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23200] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23200] exit_group(0)               = ?
[pid 23200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23200, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22617", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22617", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22617/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22617/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22617/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22617")                        = 0
mkdir("./22618", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23201
./strace-static-x86_64: Process 23201 attached
[pid 23201] set_robust_list(0x55557a32b660, 24) = 0
[pid 23201] chdir("./22618")            = 0
[pid 23201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23201] setpgid(0, 0)               = 0
[pid 23201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23201] write(3, "1000", 4)         = 4
[pid 23201] close(3)                    = 0
[pid 23201] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23201] write(1, "executing program\n", 18) = 18
[pid 23201] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23201] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23201] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23201] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23201] exit_group(0)               = ?
[pid 23201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23201, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22618", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22618", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22618/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22618/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22618/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22618")                        = 0
mkdir("./22619", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23202
./strace-static-x86_64: Process 23202 attached
[pid 23202] set_robust_list(0x55557a32b660, 24) = 0
[pid 23202] chdir("./22619")            = 0
[pid 23202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23202] setpgid(0, 0)               = 0
[pid 23202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23202] write(3, "1000", 4)         = 4
[pid 23202] close(3)                    = 0
executing program
[pid 23202] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23202] write(1, "executing program\n", 18) = 18
[pid 23202] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23202] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23202] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23202] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23202] exit_group(0)               = ?
[pid 23202] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23202, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22619", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22619", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22619/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22619/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22619/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22619")                        = 0
mkdir("./22620", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23203 attached
, child_tidptr=0x55557a32b650) = 23203
[pid 23203] set_robust_list(0x55557a32b660, 24) = 0
[pid 23203] chdir("./22620")            = 0
[pid 23203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23203] setpgid(0, 0)               = 0
[pid 23203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23203] write(3, "1000", 4)         = 4
[pid 23203] close(3)                    = 0
[pid 23203] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23203] write(1, "executing program\n", 18executing program
) = 18
[pid 23203] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23203] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23203] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23203] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23203] exit_group(0)               = ?
[pid 23203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23203, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22620", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22620", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22620/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22620/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22620/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22620")                        = 0
mkdir("./22621", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23204 attached
, child_tidptr=0x55557a32b650) = 23204
[pid 23204] set_robust_list(0x55557a32b660, 24) = 0
[pid 23204] chdir("./22621")            = 0
[pid 23204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23204] setpgid(0, 0)               = 0
[pid 23204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23204] write(3, "1000", 4)         = 4
[pid 23204] close(3)                    = 0
[pid 23204] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23204] write(1, "executing program\n", 18executing program
) = 18
[pid 23204] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23204] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23204] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23204] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23204] exit_group(0)               = ?
[pid 23204] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23204, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22621", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22621", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22621/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22621/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22621/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22621")                        = 0
mkdir("./22622", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23205
./strace-static-x86_64: Process 23205 attached
[pid 23205] set_robust_list(0x55557a32b660, 24) = 0
[pid 23205] chdir("./22622")            = 0
[pid 23205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23205] setpgid(0, 0)               = 0
[pid 23205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23205] write(3, "1000", 4)         = 4
[pid 23205] close(3)                    = 0
[pid 23205] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23205] write(1, "executing program\n", 18executing program
) = 18
[pid 23205] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23205] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23205] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23205] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23205] exit_group(0)               = ?
[pid 23205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23205, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22622", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22622", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22622/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22622/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22622/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22622")                        = 0
mkdir("./22623", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23206
./strace-static-x86_64: Process 23206 attached
[pid 23206] set_robust_list(0x55557a32b660, 24) = 0
[pid 23206] chdir("./22623")            = 0
[pid 23206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23206] setpgid(0, 0)               = 0
[pid 23206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23206] write(3, "1000", 4)         = 4
[pid 23206] close(3)                    = 0
[pid 23206] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23206] write(1, "executing program\n", 18executing program
) = 18
[pid 23206] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23206] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23206] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23206] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23206] exit_group(0)               = ?
[pid 23206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23206, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22623", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22623", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22623/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22623/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22623/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22623")                        = 0
mkdir("./22624", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23207
./strace-static-x86_64: Process 23207 attached
[pid 23207] set_robust_list(0x55557a32b660, 24) = 0
[pid 23207] chdir("./22624")            = 0
[pid 23207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23207] setpgid(0, 0)               = 0
[pid 23207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23207] write(3, "1000", 4)         = 4
[pid 23207] close(3)                    = 0
[pid 23207] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23207] write(1, "executing program\n", 18executing program
) = 18
[pid 23207] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23207] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23207] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23207] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23207] exit_group(0)               = ?
[pid 23207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23207, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22624", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22624", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22624/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22624/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22624/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22624")                        = 0
mkdir("./22625", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23208 attached
 <unfinished ...>
[pid 23208] set_robust_list(0x55557a32b660, 24) = 0
[pid 23208] chdir("./22625" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23208
[pid 23208] <... chdir resumed>)        = 0
[pid 23208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23208] setpgid(0, 0)               = 0
[pid 23208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23208] write(3, "1000", 4)         = 4
[pid 23208] close(3)                    = 0
[pid 23208] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23208] write(1, "executing program\n", 18executing program
) = 18
[pid 23208] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23208] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23208] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23208] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23208] exit_group(0)               = ?
[pid 23208] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23208, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22625", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22625", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22625/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22625/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22625/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22625")                        = 0
mkdir("./22626", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23209 attached
 <unfinished ...>
[pid 23209] set_robust_list(0x55557a32b660, 24) = 0
[pid 23209] chdir("./22626")            = 0
[pid 23209] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23209
[pid 23209] <... prctl resumed>)        = 0
[pid 23209] setpgid(0, 0)               = 0
[pid 23209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23209] write(3, "1000", 4)         = 4
[pid 23209] close(3)                    = 0
[pid 23209] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23209] write(1, "executing program\n", 18executing program
) = 18
[pid 23209] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23209] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23209] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23209] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23209] exit_group(0)               = ?
[pid 23209] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23209, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22626", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22626", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22626/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22626/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22626/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22626")                        = 0
mkdir("./22627", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23210 attached
, child_tidptr=0x55557a32b650) = 23210
[pid 23210] set_robust_list(0x55557a32b660, 24) = 0
[pid 23210] chdir("./22627")            = 0
[pid 23210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23210] setpgid(0, 0)               = 0
[pid 23210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23210] write(3, "1000", 4)         = 4
[pid 23210] close(3)                    = 0
[pid 23210] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23210] write(1, "executing program\n", 18executing program
) = 18
[pid 23210] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23210] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23210] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23210] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23210] exit_group(0)               = ?
[pid 23210] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23210, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22627", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22627", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22627/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22627/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22627/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22627")                        = 0
mkdir("./22628", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23212
./strace-static-x86_64: Process 23212 attached
[pid 23212] set_robust_list(0x55557a32b660, 24) = 0
[pid 23212] chdir("./22628")            = 0
[pid 23212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23212] setpgid(0, 0)               = 0
[pid 23212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23212] write(3, "1000", 4)         = 4
[pid 23212] close(3)                    = 0
[pid 23212] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23212] write(1, "executing program\n", 18executing program
) = 18
[pid 23212] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23212] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23212] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23212] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23212] exit_group(0)               = ?
[pid 23212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23212, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22628", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22628", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22628/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22628/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22628/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22628")                        = 0
mkdir("./22629", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23213
./strace-static-x86_64: Process 23213 attached
[pid 23213] set_robust_list(0x55557a32b660, 24) = 0
[pid 23213] chdir("./22629")            = 0
[pid 23213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23213] setpgid(0, 0)               = 0
[pid 23213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23213] write(3, "1000", 4)         = 4
[pid 23213] close(3)                    = 0
[pid 23213] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23213] write(1, "executing program\n", 18executing program
) = 18
[pid 23213] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23213] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23213] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23213] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23213] exit_group(0)               = ?
[pid 23213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23213, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22629", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22629", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22629/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22629/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22629/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22629")                        = 0
mkdir("./22630", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23214
./strace-static-x86_64: Process 23214 attached
[pid 23214] set_robust_list(0x55557a32b660, 24) = 0
[pid 23214] chdir("./22630")            = 0
[pid 23214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23214] setpgid(0, 0)               = 0
[pid 23214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23214] write(3, "1000", 4)         = 4
[pid 23214] close(3)                    = 0
[pid 23214] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23214] write(1, "executing program\n", 18executing program
) = 18
[pid 23214] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23214] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23214] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23214] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23214] exit_group(0)               = ?
[pid 23214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23214, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22630", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22630", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22630/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22630/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22630/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22630")                        = 0
mkdir("./22631", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23215
./strace-static-x86_64: Process 23215 attached
[pid 23215] set_robust_list(0x55557a32b660, 24) = 0
[pid 23215] chdir("./22631")            = 0
[pid 23215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23215] setpgid(0, 0)               = 0
[pid 23215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23215] write(3, "1000", 4)         = 4
[pid 23215] close(3)                    = 0
[pid 23215] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23215] write(1, "executing program\n", 18executing program
) = 18
[pid 23215] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23215] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23215] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23215] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23215] exit_group(0)               = ?
[pid 23215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23215, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22631", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22631", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22631/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22631/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22631/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22631")                        = 0
mkdir("./22632", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23216
./strace-static-x86_64: Process 23216 attached
[pid 23216] set_robust_list(0x55557a32b660, 24) = 0
[pid 23216] chdir("./22632")            = 0
[pid 23216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23216] setpgid(0, 0)               = 0
[pid 23216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23216] write(3, "1000", 4)         = 4
[pid 23216] close(3)                    = 0
[pid 23216] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23216] write(1, "executing program\n", 18) = 18
[pid 23216] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23216] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23216] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23216] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23216] exit_group(0)               = ?
[pid 23216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23216, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22632", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22632", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22632/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22632/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22632/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22632")                        = 0
mkdir("./22633", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23217 attached
, child_tidptr=0x55557a32b650) = 23217
[pid 23217] set_robust_list(0x55557a32b660, 24) = 0
[pid 23217] chdir("./22633")            = 0
[pid 23217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23217] setpgid(0, 0)               = 0
[pid 23217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23217] write(3, "1000", 4)         = 4
[pid 23217] close(3)                    = 0
[pid 23217] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23217] write(1, "executing program\n", 18executing program
) = 18
[pid 23217] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23217] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23217] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23217] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23217] exit_group(0)               = ?
[pid 23217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23217, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22633", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22633", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22633/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22633/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22633/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22633")                        = 0
mkdir("./22634", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23218 attached
 <unfinished ...>
[pid 23218] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23218
[pid 23218] chdir("./22634")            = 0
[pid 23218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23218] setpgid(0, 0)               = 0
[pid 23218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23218] write(3, "1000", 4)         = 4
[pid 23218] close(3)                    = 0
[pid 23218] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23218] write(1, "executing program\n", 18executing program
) = 18
[pid 23218] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23218] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23218] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23218] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23218] exit_group(0)               = ?
[pid 23218] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23218, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22634", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22634", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22634/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22634/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22634/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22634")                        = 0
mkdir("./22635", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23219 attached
, child_tidptr=0x55557a32b650) = 23219
[pid 23219] set_robust_list(0x55557a32b660, 24) = 0
[pid 23219] chdir("./22635")            = 0
[pid 23219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23219] setpgid(0, 0)               = 0
[pid 23219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23219] write(3, "1000", 4)         = 4
[pid 23219] close(3)                    = 0
[pid 23219] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23219] write(1, "executing program\n", 18executing program
) = 18
[pid 23219] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23219] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23219] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23219] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23219] exit_group(0)               = ?
[pid 23219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23219, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22635", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22635", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22635/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22635/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22635/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22635")                        = 0
mkdir("./22636", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23220
./strace-static-x86_64: Process 23220 attached
[pid 23220] set_robust_list(0x55557a32b660, 24) = 0
[pid 23220] chdir("./22636")            = 0
[pid 23220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23220] setpgid(0, 0)               = 0
[pid 23220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23220] write(3, "1000", 4)         = 4
[pid 23220] close(3)                    = 0
[pid 23220] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23220] write(1, "executing program\n", 18executing program
) = 18
[pid 23220] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23220] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23220] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23220] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23220] exit_group(0)               = ?
[pid 23220] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23220, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22636", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22636", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22636/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22636/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22636/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22636")                        = 0
mkdir("./22637", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23221
./strace-static-x86_64: Process 23221 attached
[pid 23221] set_robust_list(0x55557a32b660, 24) = 0
[pid 23221] chdir("./22637")            = 0
[pid 23221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23221] setpgid(0, 0)               = 0
[pid 23221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23221] write(3, "1000", 4)         = 4
[pid 23221] close(3)                    = 0
[pid 23221] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23221] write(1, "executing program\n", 18executing program
) = 18
[pid 23221] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23221] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23221] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23221] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23221] exit_group(0)               = ?
[pid 23221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23221, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22637", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22637", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22637/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22637/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22637/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22637")                        = 0
mkdir("./22638", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23222
./strace-static-x86_64: Process 23222 attached
[pid 23222] set_robust_list(0x55557a32b660, 24) = 0
[pid 23222] chdir("./22638")            = 0
[pid 23222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23222] setpgid(0, 0)               = 0
[pid 23222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23222] write(3, "1000", 4)         = 4
[pid 23222] close(3)                    = 0
[pid 23222] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23222] write(1, "executing program\n", 18executing program
) = 18
[pid 23222] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23222] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23222] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23222] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23222] exit_group(0)               = ?
[pid 23222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23222, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22638", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22638", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22638/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22638/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22638/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22638")                        = 0
mkdir("./22639", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23223 attached
, child_tidptr=0x55557a32b650) = 23223
[pid 23223] set_robust_list(0x55557a32b660, 24) = 0
[pid 23223] chdir("./22639")            = 0
[pid 23223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23223] setpgid(0, 0)               = 0
[pid 23223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23223] write(3, "1000", 4)         = 4
[pid 23223] close(3)                    = 0
[pid 23223] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23223] write(1, "executing program\n", 18executing program
) = 18
[pid 23223] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23223] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23223] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23223] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23223] exit_group(0)               = ?
[pid 23223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23223, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22639", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22639", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22639/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22639/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22639/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22639")                        = 0
mkdir("./22640", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23224
./strace-static-x86_64: Process 23224 attached
[pid 23224] set_robust_list(0x55557a32b660, 24) = 0
[pid 23224] chdir("./22640")            = 0
[pid 23224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23224] setpgid(0, 0)               = 0
[pid 23224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23224] write(3, "1000", 4)         = 4
[pid 23224] close(3)                    = 0
[pid 23224] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23224] write(1, "executing program\n", 18executing program
) = 18
[pid 23224] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23224] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23224] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23224] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23224] exit_group(0)               = ?
[pid 23224] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23224, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22640", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22640", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22640/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22640/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22640/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22640")                        = 0
mkdir("./22641", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23225
./strace-static-x86_64: Process 23225 attached
[pid 23225] set_robust_list(0x55557a32b660, 24) = 0
[pid 23225] chdir("./22641")            = 0
[pid 23225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23225] setpgid(0, 0)               = 0
[pid 23225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23225] write(3, "1000", 4)         = 4
[pid 23225] close(3)                    = 0
[pid 23225] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23225] write(1, "executing program\n", 18executing program
) = 18
[pid 23225] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23225] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23225] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23225] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23225] exit_group(0)               = ?
[pid 23225] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23225, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22641", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22641", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22641/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22641/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22641/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22641")                        = 0
mkdir("./22642", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23226 attached
, child_tidptr=0x55557a32b650) = 23226
[pid 23226] set_robust_list(0x55557a32b660, 24) = 0
[pid 23226] chdir("./22642")            = 0
[pid 23226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23226] setpgid(0, 0)               = 0
[pid 23226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23226] write(3, "1000", 4)         = 4
[pid 23226] close(3)                    = 0
[pid 23226] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23226] write(1, "executing program\n", 18executing program
) = 18
[pid 23226] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23226] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23226] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23226] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23226] exit_group(0)               = ?
[pid 23226] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23226, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22642", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22642", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22642/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22642/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22642/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22642")                        = 0
mkdir("./22643", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23227 attached
, child_tidptr=0x55557a32b650) = 23227
[pid 23227] set_robust_list(0x55557a32b660, 24) = 0
[pid 23227] chdir("./22643")            = 0
[pid 23227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23227] setpgid(0, 0)               = 0
[pid 23227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23227] write(3, "1000", 4)         = 4
[pid 23227] close(3)                    = 0
[pid 23227] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23227] write(1, "executing program\n", 18executing program
) = 18
[pid 23227] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23227] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23227] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23227] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23227] exit_group(0)               = ?
[pid 23227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23227, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22643", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22643", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22643/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22643/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22643/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22643")                        = 0
mkdir("./22644", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23228
./strace-static-x86_64: Process 23228 attached
[pid 23228] set_robust_list(0x55557a32b660, 24) = 0
[pid 23228] chdir("./22644")            = 0
[pid 23228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23228] setpgid(0, 0)               = 0
[pid 23228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23228] write(3, "1000", 4)         = 4
[pid 23228] close(3)                    = 0
[pid 23228] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23228] write(1, "executing program\n", 18executing program
) = 18
[pid 23228] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23228] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23228] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23228] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23228] exit_group(0)               = ?
[pid 23228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23228, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22644", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22644", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22644/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22644/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22644/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22644")                        = 0
mkdir("./22645", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23229 attached
, child_tidptr=0x55557a32b650) = 23229
[pid 23229] set_robust_list(0x55557a32b660, 24) = 0
[pid 23229] chdir("./22645")            = 0
[pid 23229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23229] setpgid(0, 0)               = 0
[pid 23229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23229] write(3, "1000", 4)         = 4
[pid 23229] close(3)                    = 0
[pid 23229] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23229] write(1, "executing program\n", 18executing program
) = 18
[pid 23229] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23229] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23229] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23229] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23229] exit_group(0)               = ?
[pid 23229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23229, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22645", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22645", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22645/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22645/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22645/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22645")                        = 0
mkdir("./22646", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23230
./strace-static-x86_64: Process 23230 attached
[pid 23230] set_robust_list(0x55557a32b660, 24) = 0
[pid 23230] chdir("./22646")            = 0
[pid 23230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23230] setpgid(0, 0)               = 0
[pid 23230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23230] write(3, "1000", 4)         = 4
[pid 23230] close(3)                    = 0
[pid 23230] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23230] write(1, "executing program\n", 18executing program
) = 18
[pid 23230] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23230] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23230] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23230] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23230] exit_group(0)               = ?
[pid 23230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23230, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22646", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22646", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22646/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22646/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22646/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22646")                        = 0
mkdir("./22647", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23231
./strace-static-x86_64: Process 23231 attached
[pid 23231] set_robust_list(0x55557a32b660, 24) = 0
[pid 23231] chdir("./22647")            = 0
[pid 23231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23231] setpgid(0, 0)               = 0
[pid 23231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23231] write(3, "1000", 4)         = 4
[pid 23231] close(3)                    = 0
[pid 23231] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23231] write(1, "executing program\n", 18) = 18
[pid 23231] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23231] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23231] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23231] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23231] exit_group(0)               = ?
[pid 23231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23231, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22647", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22647", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22647/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22647/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22647/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22647")                        = 0
mkdir("./22648", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23232
./strace-static-x86_64: Process 23232 attached
[pid 23232] set_robust_list(0x55557a32b660, 24) = 0
[pid 23232] chdir("./22648")            = 0
[pid 23232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23232] setpgid(0, 0)               = 0
[pid 23232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23232] write(3, "1000", 4)         = 4
[pid 23232] close(3)                    = 0
[pid 23232] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23232] write(1, "executing program\n", 18) = 18
[pid 23232] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23232] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23232] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23232] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23232] exit_group(0)               = ?
[pid 23232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23232, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22648", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22648", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22648/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22648/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22648/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22648")                        = 0
mkdir("./22649", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23233
./strace-static-x86_64: Process 23233 attached
[pid 23233] set_robust_list(0x55557a32b660, 24) = 0
[pid 23233] chdir("./22649")            = 0
[pid 23233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23233] setpgid(0, 0)               = 0
[pid 23233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23233] write(3, "1000", 4)         = 4
[pid 23233] close(3)                    = 0
[pid 23233] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23233] write(1, "executing program\n", 18executing program
) = 18
[pid 23233] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23233] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23233] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23233] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23233] exit_group(0)               = ?
[pid 23233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23233, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22649", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22649", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22649/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22649/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22649/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22649")                        = 0
mkdir("./22650", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23234 attached
 <unfinished ...>
[pid 23234] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23234
[pid 23234] chdir("./22650")            = 0
[pid 23234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23234] setpgid(0, 0)               = 0
[pid 23234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23234] write(3, "1000", 4)         = 4
[pid 23234] close(3)                    = 0
[pid 23234] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23234] write(1, "executing program\n", 18executing program
) = 18
[pid 23234] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23234] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23234] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23234] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23234] exit_group(0)               = ?
[pid 23234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23234, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22650", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22650", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22650/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22650/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22650/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22650")                        = 0
mkdir("./22651", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23235
./strace-static-x86_64: Process 23235 attached
[pid 23235] set_robust_list(0x55557a32b660, 24) = 0
[pid 23235] chdir("./22651")            = 0
[pid 23235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23235] setpgid(0, 0)               = 0
[pid 23235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23235] write(3, "1000", 4)         = 4
[pid 23235] close(3)                    = 0
[pid 23235] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23235] write(1, "executing program\n", 18) = 18
[pid 23235] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23235] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23235] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23235] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23235] exit_group(0)               = ?
[pid 23235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23235, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22651", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22651", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22651/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22651/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22651/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22651")                        = 0
mkdir("./22652", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23236 attached
, child_tidptr=0x55557a32b650) = 23236
[pid 23236] set_robust_list(0x55557a32b660, 24) = 0
[pid 23236] chdir("./22652")            = 0
[pid 23236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23236] setpgid(0, 0)               = 0
[pid 23236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23236] write(3, "1000", 4)         = 4
[pid 23236] close(3)                    = 0
[pid 23236] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23236] write(1, "executing program\n", 18executing program
) = 18
[pid 23236] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23236] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23236] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23236] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23236] exit_group(0)               = ?
[pid 23236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23236, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22652", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22652", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22652/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22652/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22652/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22652")                        = 0
mkdir("./22653", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23237 attached
, child_tidptr=0x55557a32b650) = 23237
[pid 23237] set_robust_list(0x55557a32b660, 24) = 0
[pid 23237] chdir("./22653")            = 0
[pid 23237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23237] setpgid(0, 0)               = 0
[pid 23237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23237] write(3, "1000", 4)         = 4
[pid 23237] close(3)                    = 0
[pid 23237] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23237] write(1, "executing program\n", 18executing program
) = 18
[pid 23237] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23237] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23237] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23237] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23237] exit_group(0)               = ?
[pid 23237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23237, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22653", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22653", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22653/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22653/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22653/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22653")                        = 0
mkdir("./22654", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23238
./strace-static-x86_64: Process 23238 attached
[pid 23238] set_robust_list(0x55557a32b660, 24) = 0
[pid 23238] chdir("./22654")            = 0
[pid 23238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23238] setpgid(0, 0)               = 0
[pid 23238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23238] write(3, "1000", 4)         = 4
[pid 23238] close(3)                    = 0
[pid 23238] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23238] write(1, "executing program\n", 18executing program
) = 18
[pid 23238] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23238] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23238] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23238] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23238] exit_group(0)               = ?
[pid 23238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23238, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22654", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22654", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22654/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22654/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22654/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22654")                        = 0
mkdir("./22655", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23239
./strace-static-x86_64: Process 23239 attached
[pid 23239] set_robust_list(0x55557a32b660, 24) = 0
[pid 23239] chdir("./22655")            = 0
[pid 23239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23239] setpgid(0, 0)               = 0
[pid 23239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23239] write(3, "1000", 4)         = 4
[pid 23239] close(3)                    = 0
[pid 23239] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23239] write(1, "executing program\n", 18executing program
) = 18
[pid 23239] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23239] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23239] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23239] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23239] exit_group(0)               = ?
[pid 23239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23239, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22655", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22655", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22655/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22655/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22655/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22655")                        = 0
mkdir("./22656", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23240
./strace-static-x86_64: Process 23240 attached
[pid 23240] set_robust_list(0x55557a32b660, 24) = 0
[pid 23240] chdir("./22656")            = 0
[pid 23240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23240] setpgid(0, 0)               = 0
[pid 23240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23240] write(3, "1000", 4)         = 4
[pid 23240] close(3)                    = 0
[pid 23240] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23240] write(1, "executing program\n", 18executing program
) = 18
[pid 23240] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23240] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23240] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23240] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23240] exit_group(0)               = ?
[pid 23240] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23240, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22656", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22656", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22656/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22656/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22656/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22656")                        = 0
mkdir("./22657", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23241
./strace-static-x86_64: Process 23241 attached
[pid 23241] set_robust_list(0x55557a32b660, 24) = 0
[pid 23241] chdir("./22657")            = 0
[pid 23241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23241] setpgid(0, 0)               = 0
[pid 23241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23241] write(3, "1000", 4)         = 4
[pid 23241] close(3)                    = 0
[pid 23241] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23241] write(1, "executing program\n", 18executing program
) = 18
[pid 23241] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23241] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23241] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23241] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23241] exit_group(0)               = ?
[pid 23241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23241, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22657", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22657", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22657/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22657/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22657/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22657")                        = 0
mkdir("./22658", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23242
./strace-static-x86_64: Process 23242 attached
[pid 23242] set_robust_list(0x55557a32b660, 24) = 0
[pid 23242] chdir("./22658")            = 0
[pid 23242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23242] setpgid(0, 0)               = 0
[pid 23242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23242] write(3, "1000", 4)         = 4
[pid 23242] close(3)                    = 0
[pid 23242] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23242] write(1, "executing program\n", 18executing program
) = 18
[pid 23242] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23242] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23242] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23242] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23242] exit_group(0)               = ?
[pid 23242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23242, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22658", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22658", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22658/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22658/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22658/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22658")                        = 0
mkdir("./22659", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23243 attached
 <unfinished ...>
[pid 23243] set_robust_list(0x55557a32b660, 24) = 0
[pid 23243] chdir("./22659")            = 0
[pid 23243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23243] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23243
[pid 23243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23243] write(3, "1000", 4)         = 4
[pid 23243] close(3)                    = 0
[pid 23243] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23243] write(1, "executing program\n", 18executing program
) = 18
[pid 23243] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23243] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23243] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23243] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23243] exit_group(0)               = ?
[pid 23243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23243, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22659", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22659", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22659/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22659/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22659/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22659")                        = 0
mkdir("./22660", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23244 attached
, child_tidptr=0x55557a32b650) = 23244
[pid 23244] set_robust_list(0x55557a32b660, 24) = 0
[pid 23244] chdir("./22660")            = 0
[pid 23244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23244] setpgid(0, 0)               = 0
[pid 23244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23244] write(3, "1000", 4)         = 4
[pid 23244] close(3)                    = 0
[pid 23244] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23244] write(1, "executing program\n", 18executing program
) = 18
[pid 23244] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23244] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23244] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23244] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23244] exit_group(0)               = ?
[pid 23244] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23244, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22660", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22660", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22660/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22660/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22660/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22660")                        = 0
mkdir("./22661", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23245
./strace-static-x86_64: Process 23245 attached
[pid 23245] set_robust_list(0x55557a32b660, 24) = 0
[pid 23245] chdir("./22661")            = 0
[pid 23245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23245] setpgid(0, 0)               = 0
[pid 23245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23245] write(3, "1000", 4)         = 4
[pid 23245] close(3)                    = 0
[pid 23245] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23245] write(1, "executing program\n", 18executing program
) = 18
[pid 23245] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23245] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23245] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23245] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23245] exit_group(0)               = ?
[pid 23245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23245, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22661", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22661", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22661/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22661/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22661/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22661")                        = 0
mkdir("./22662", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23246
./strace-static-x86_64: Process 23246 attached
[pid 23246] set_robust_list(0x55557a32b660, 24) = 0
[pid 23246] chdir("./22662")            = 0
[pid 23246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23246] setpgid(0, 0)               = 0
[pid 23246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23246] write(3, "1000", 4)         = 4
[pid 23246] close(3)                    = 0
[pid 23246] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23246] write(1, "executing program\n", 18) = 18
[pid 23246] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23246] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23246] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23246] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23246] exit_group(0)               = ?
[pid 23246] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23246, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22662", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22662", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22662/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22662/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22662/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22662")                        = 0
mkdir("./22663", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23247
./strace-static-x86_64: Process 23247 attached
[pid 23247] set_robust_list(0x55557a32b660, 24) = 0
[pid 23247] chdir("./22663")            = 0
[pid 23247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23247] setpgid(0, 0)               = 0
[pid 23247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23247] write(3, "1000", 4)         = 4
[pid 23247] close(3)                    = 0
[pid 23247] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23247] write(1, "executing program\n", 18executing program
) = 18
[pid 23247] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23247] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23247] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23247] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23247] exit_group(0)               = ?
[pid 23247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23247, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22663", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22663", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22663/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22663/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22663/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22663")                        = 0
mkdir("./22664", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23248
./strace-static-x86_64: Process 23248 attached
[pid 23248] set_robust_list(0x55557a32b660, 24) = 0
[pid 23248] chdir("./22664")            = 0
[pid 23248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23248] setpgid(0, 0)               = 0
[pid 23248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23248] write(3, "1000", 4)         = 4
[pid 23248] close(3)                    = 0
[pid 23248] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23248] write(1, "executing program\n", 18executing program
) = 18
[pid 23248] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23248] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23248] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23248] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23248] exit_group(0)               = ?
[pid 23248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23248, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22664", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22664", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22664/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22664/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22664/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22664")                        = 0
mkdir("./22665", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23249
./strace-static-x86_64: Process 23249 attached
[pid 23249] set_robust_list(0x55557a32b660, 24) = 0
[pid 23249] chdir("./22665")            = 0
[pid 23249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23249] setpgid(0, 0)               = 0
[pid 23249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23249] write(3, "1000", 4)         = 4
[pid 23249] close(3)                    = 0
[pid 23249] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23249] write(1, "executing program\n", 18executing program
) = 18
[pid 23249] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23249] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23249] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23249] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23249] exit_group(0)               = ?
[pid 23249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23249, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22665", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22665", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22665/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22665/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22665/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22665")                        = 0
mkdir("./22666", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23250
./strace-static-x86_64: Process 23250 attached
[pid 23250] set_robust_list(0x55557a32b660, 24) = 0
[pid 23250] chdir("./22666")            = 0
[pid 23250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23250] setpgid(0, 0)               = 0
[pid 23250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23250] write(3, "1000", 4)         = 4
[pid 23250] close(3)                    = 0
[pid 23250] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23250] write(1, "executing program\n", 18executing program
) = 18
[pid 23250] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23250] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23250] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23250] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23250] exit_group(0)               = ?
[pid 23250] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23250, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22666", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22666", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22666/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22666/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22666/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22666")                        = 0
mkdir("./22667", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23251 attached
, child_tidptr=0x55557a32b650) = 23251
[pid 23251] set_robust_list(0x55557a32b660, 24) = 0
[pid 23251] chdir("./22667")            = 0
[pid 23251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23251] setpgid(0, 0)               = 0
[pid 23251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23251] write(3, "1000", 4)         = 4
[pid 23251] close(3)                    = 0
[pid 23251] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23251] write(1, "executing program\n", 18) = 18
[pid 23251] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23251] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23251] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23251] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23251] exit_group(0)               = ?
[pid 23251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23251, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22667", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22667", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22667/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22667/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22667/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22667")                        = 0
mkdir("./22668", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23252 attached
, child_tidptr=0x55557a32b650) = 23252
[pid 23252] set_robust_list(0x55557a32b660, 24) = 0
[pid 23252] chdir("./22668")            = 0
[pid 23252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23252] setpgid(0, 0)               = 0
[pid 23252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23252] write(3, "1000", 4)         = 4
[pid 23252] close(3)                    = 0
[pid 23252] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23252] write(1, "executing program\n", 18executing program
) = 18
[pid 23252] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23252] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23252] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23252] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23252] exit_group(0)               = ?
[pid 23252] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23252, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22668", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22668", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22668/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22668/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22668/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22668")                        = 0
mkdir("./22669", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23253
./strace-static-x86_64: Process 23253 attached
[pid 23253] set_robust_list(0x55557a32b660, 24) = 0
[pid 23253] chdir("./22669")            = 0
[pid 23253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23253] setpgid(0, 0)               = 0
[pid 23253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23253] write(3, "1000", 4)         = 4
[pid 23253] close(3)                    = 0
[pid 23253] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23253] write(1, "executing program\n", 18executing program
) = 18
[pid 23253] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23253] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23253] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23253] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23253] exit_group(0)               = ?
[pid 23253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23253, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22669", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22669", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22669/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22669/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22669/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22669")                        = 0
mkdir("./22670", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23254
./strace-static-x86_64: Process 23254 attached
[pid 23254] set_robust_list(0x55557a32b660, 24) = 0
[pid 23254] chdir("./22670")            = 0
[pid 23254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23254] setpgid(0, 0)               = 0
[pid 23254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23254] write(3, "1000", 4)         = 4
[pid 23254] close(3)                    = 0
[pid 23254] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23254] write(1, "executing program\n", 18executing program
) = 18
[pid 23254] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23254] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23254] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23254] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23254] exit_group(0)               = ?
[pid 23254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23254, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22670", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22670", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22670/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22670/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22670/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22670")                        = 0
mkdir("./22671", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23255
./strace-static-x86_64: Process 23255 attached
[pid 23255] set_robust_list(0x55557a32b660, 24) = 0
[pid 23255] chdir("./22671")            = 0
[pid 23255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23255] setpgid(0, 0)               = 0
[pid 23255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23255] write(3, "1000", 4)         = 4
[pid 23255] close(3)                    = 0
[pid 23255] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23255] write(1, "executing program\n", 18executing program
) = 18
[pid 23255] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23255] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23255] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23255] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23255] exit_group(0)               = ?
[pid 23255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23255, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22671", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22671", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22671/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22671/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22671/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22671")                        = 0
mkdir("./22672", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23256
./strace-static-x86_64: Process 23256 attached
[pid 23256] set_robust_list(0x55557a32b660, 24) = 0
[pid 23256] chdir("./22672")            = 0
[pid 23256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23256] setpgid(0, 0)               = 0
[pid 23256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23256] write(3, "1000", 4)         = 4
[pid 23256] close(3)                    = 0
[pid 23256] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23256] write(1, "executing program\n", 18executing program
) = 18
[pid 23256] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23256] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23256] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23256] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23256] exit_group(0)               = ?
[pid 23256] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23256, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22672", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22672", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22672/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22672/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22672/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22672")                        = 0
mkdir("./22673", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23257
./strace-static-x86_64: Process 23257 attached
[pid 23257] set_robust_list(0x55557a32b660, 24) = 0
[pid 23257] chdir("./22673")            = 0
[pid 23257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23257] setpgid(0, 0)               = 0
[pid 23257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23257] write(3, "1000", 4)         = 4
[pid 23257] close(3)                    = 0
[pid 23257] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23257] write(1, "executing program\n", 18) = 18
[pid 23257] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23257] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23257] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23257] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23257] exit_group(0)               = ?
[pid 23257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23257, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22673", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22673", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22673/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22673/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22673/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22673")                        = 0
mkdir("./22674", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23258 attached
, child_tidptr=0x55557a32b650) = 23258
[pid 23258] set_robust_list(0x55557a32b660, 24) = 0
[pid 23258] chdir("./22674")            = 0
[pid 23258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23258] setpgid(0, 0)               = 0
[pid 23258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23258] write(3, "1000", 4)         = 4
[pid 23258] close(3)                    = 0
[pid 23258] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23258] write(1, "executing program\n", 18executing program
) = 18
[pid 23258] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23258] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23258] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23258] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23258] exit_group(0)               = ?
[pid 23258] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23258, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22674", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22674", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22674/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22674/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22674/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22674")                        = 0
mkdir("./22675", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23259
./strace-static-x86_64: Process 23259 attached
[pid 23259] set_robust_list(0x55557a32b660, 24) = 0
[pid 23259] chdir("./22675")            = 0
[pid 23259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23259] setpgid(0, 0)               = 0
[pid 23259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23259] write(3, "1000", 4)         = 4
[pid 23259] close(3)                    = 0
[pid 23259] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23259] write(1, "executing program\n", 18executing program
) = 18
[pid 23259] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23259] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23259] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23259] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23259] exit_group(0)               = ?
[pid 23259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23259, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22675", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22675", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22675/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22675/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22675/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22675")                        = 0
mkdir("./22676", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23260 attached
, child_tidptr=0x55557a32b650) = 23260
[pid 23260] set_robust_list(0x55557a32b660, 24) = 0
[pid 23260] chdir("./22676")            = 0
[pid 23260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23260] setpgid(0, 0)               = 0
[pid 23260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23260] write(3, "1000", 4)         = 4
[pid 23260] close(3)                    = 0
[pid 23260] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23260] write(1, "executing program\n", 18executing program
) = 18
[pid 23260] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23260] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23260] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23260] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23260] exit_group(0)               = ?
[pid 23260] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23260, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22676", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22676", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22676/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22676/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22676/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22676")                        = 0
mkdir("./22677", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23261
./strace-static-x86_64: Process 23261 attached
[pid 23261] set_robust_list(0x55557a32b660, 24) = 0
[pid 23261] chdir("./22677")            = 0
[pid 23261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23261] setpgid(0, 0)               = 0
[pid 23261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23261] write(3, "1000", 4)         = 4
[pid 23261] close(3)                    = 0
[pid 23261] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23261] write(1, "executing program\n", 18) = 18
[pid 23261] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23261] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23261] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23261] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23261] exit_group(0)               = ?
[pid 23261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23261, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22677", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22677", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22677/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22677/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22677/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22677")                        = 0
mkdir("./22678", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23262
./strace-static-x86_64: Process 23262 attached
[pid 23262] set_robust_list(0x55557a32b660, 24) = 0
[pid 23262] chdir("./22678")            = 0
[pid 23262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23262] setpgid(0, 0)               = 0
[pid 23262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23262] write(3, "1000", 4)         = 4
[pid 23262] close(3)                    = 0
[pid 23262] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23262] write(1, "executing program\n", 18executing program
) = 18
[pid 23262] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23262] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23262] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23262] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23262] exit_group(0)               = ?
[pid 23262] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23262, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22678", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22678", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22678/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22678/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22678/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22678")                        = 0
mkdir("./22679", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23263 attached
, child_tidptr=0x55557a32b650) = 23263
[pid 23263] set_robust_list(0x55557a32b660, 24) = 0
[pid 23263] chdir("./22679")            = 0
[pid 23263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23263] setpgid(0, 0)               = 0
[pid 23263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23263] write(3, "1000", 4)         = 4
[pid 23263] close(3)                    = 0
[pid 23263] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23263] write(1, "executing program\n", 18executing program
) = 18
[pid 23263] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23263] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23263] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23263] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23263] exit_group(0)               = ?
[pid 23263] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23263, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22679", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22679", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22679/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22679/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22679/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22679")                        = 0
mkdir("./22680", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23264 attached
 <unfinished ...>
[pid 23264] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23264
[pid 23264] chdir("./22680")            = 0
[pid 23264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23264] setpgid(0, 0)               = 0
[pid 23264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23264] write(3, "1000", 4)         = 4
[pid 23264] close(3)                    = 0
[pid 23264] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23264] write(1, "executing program\n", 18executing program
) = 18
[pid 23264] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23264] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23264] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23264] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23264] exit_group(0)               = ?
[pid 23264] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23264, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22680", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22680", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22680/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22680/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22680/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22680")                        = 0
mkdir("./22681", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23265
./strace-static-x86_64: Process 23265 attached
[pid 23265] set_robust_list(0x55557a32b660, 24) = 0
[pid 23265] chdir("./22681")            = 0
[pid 23265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23265] setpgid(0, 0)               = 0
[pid 23265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23265] write(3, "1000", 4)         = 4
[pid 23265] close(3)                    = 0
[pid 23265] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23265] write(1, "executing program\n", 18executing program
) = 18
[pid 23265] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23265] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23265] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23265] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23265] exit_group(0)               = ?
[pid 23265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23265, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22681", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22681", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22681/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22681/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22681/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22681")                        = 0
mkdir("./22682", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23266
./strace-static-x86_64: Process 23266 attached
[pid 23266] set_robust_list(0x55557a32b660, 24) = 0
[pid 23266] chdir("./22682")            = 0
[pid 23266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23266] setpgid(0, 0)               = 0
[pid 23266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23266] write(3, "1000", 4)         = 4
[pid 23266] close(3)                    = 0
[pid 23266] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23266] write(1, "executing program\n", 18executing program
) = 18
[pid 23266] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23266] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23266] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23266] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23266] exit_group(0)               = ?
[pid 23266] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23266, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22682", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22682", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22682/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22682/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22682/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22682")                        = 0
mkdir("./22683", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23267
./strace-static-x86_64: Process 23267 attached
[pid 23267] set_robust_list(0x55557a32b660, 24) = 0
[pid 23267] chdir("./22683")            = 0
[pid 23267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23267] setpgid(0, 0)               = 0
[pid 23267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23267] write(3, "1000", 4)         = 4
[pid 23267] close(3)                    = 0
[pid 23267] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23267] write(1, "executing program\n", 18executing program
) = 18
[pid 23267] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23267] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23267] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23267] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23267] exit_group(0)               = ?
[pid 23267] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23267, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22683", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22683", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22683/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22683/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22683/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22683")                        = 0
mkdir("./22684", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23268
./strace-static-x86_64: Process 23268 attached
[pid 23268] set_robust_list(0x55557a32b660, 24) = 0
[pid 23268] chdir("./22684")            = 0
[pid 23268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23268] setpgid(0, 0)               = 0
[pid 23268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23268] write(3, "1000", 4)         = 4
[pid 23268] close(3)                    = 0
[pid 23268] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23268] write(1, "executing program\n", 18executing program
) = 18
[pid 23268] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23268] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23268] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23268] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23268] exit_group(0)               = ?
[pid 23268] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23268, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22684", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22684", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22684/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22684/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22684/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22684")                        = 0
mkdir("./22685", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23269 attached
, child_tidptr=0x55557a32b650) = 23269
[pid 23269] set_robust_list(0x55557a32b660, 24) = 0
[pid 23269] chdir("./22685")            = 0
[pid 23269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23269] setpgid(0, 0)               = 0
[pid 23269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23269] write(3, "1000", 4)         = 4
[pid 23269] close(3)                    = 0
[pid 23269] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23269] write(1, "executing program\n", 18executing program
) = 18
[pid 23269] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23269] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23269] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23269] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23269] exit_group(0)               = ?
[pid 23269] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23269, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22685", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22685", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22685/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22685/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22685/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22685")                        = 0
mkdir("./22686", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23270
./strace-static-x86_64: Process 23270 attached
[pid 23270] set_robust_list(0x55557a32b660, 24) = 0
[pid 23270] chdir("./22686")            = 0
[pid 23270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23270] setpgid(0, 0)               = 0
[pid 23270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23270] write(3, "1000", 4)         = 4
[pid 23270] close(3)                    = 0
[pid 23270] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23270] write(1, "executing program\n", 18executing program
) = 18
[pid 23270] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23270] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23270] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23270] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23270] exit_group(0)               = ?
[pid 23270] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23270, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22686", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22686", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22686/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22686/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22686/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22686")                        = 0
mkdir("./22687", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23271
./strace-static-x86_64: Process 23271 attached
[pid 23271] set_robust_list(0x55557a32b660, 24) = 0
[pid 23271] chdir("./22687")            = 0
[pid 23271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23271] setpgid(0, 0)               = 0
[pid 23271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23271] write(3, "1000", 4)         = 4
[pid 23271] close(3)                    = 0
[pid 23271] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23271] write(1, "executing program\n", 18executing program
) = 18
[pid 23271] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23271] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23271] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23271] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23271] exit_group(0)               = ?
[pid 23271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23271, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22687", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22687", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22687/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22687/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22687/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22687")                        = 0
mkdir("./22688", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23272
./strace-static-x86_64: Process 23272 attached
[pid 23272] set_robust_list(0x55557a32b660, 24) = 0
[pid 23272] chdir("./22688")            = 0
[pid 23272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23272] setpgid(0, 0)               = 0
[pid 23272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23272] write(3, "1000", 4)         = 4
[pid 23272] close(3)                    = 0
[pid 23272] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23272] write(1, "executing program\n", 18executing program
) = 18
[pid 23272] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23272] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23272] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23272] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23272] exit_group(0)               = ?
[pid 23272] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23272, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22688", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22688", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22688/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22688/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22688/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22688")                        = 0
mkdir("./22689", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23273 attached
, child_tidptr=0x55557a32b650) = 23273
[pid 23273] set_robust_list(0x55557a32b660, 24) = 0
[pid 23273] chdir("./22689")            = 0
[pid 23273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23273] setpgid(0, 0)               = 0
[pid 23273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23273] write(3, "1000", 4)         = 4
[pid 23273] close(3)                    = 0
[pid 23273] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23273] write(1, "executing program\n", 18executing program
) = 18
[pid 23273] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23273] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23273] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23273] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23273] exit_group(0)               = ?
[pid 23273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23273, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22689", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22689", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22689/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22689/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22689/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22689")                        = 0
mkdir("./22690", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23274
./strace-static-x86_64: Process 23274 attached
[pid 23274] set_robust_list(0x55557a32b660, 24) = 0
[pid 23274] chdir("./22690")            = 0
[pid 23274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23274] setpgid(0, 0)               = 0
[pid 23274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23274] write(3, "1000", 4)         = 4
[pid 23274] close(3)                    = 0
[pid 23274] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23274] write(1, "executing program\n", 18executing program
) = 18
[pid 23274] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23274] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23274] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23274] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23274] exit_group(0)               = ?
[pid 23274] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23274, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22690", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22690", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22690/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22690/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22690/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22690")                        = 0
mkdir("./22691", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23275
./strace-static-x86_64: Process 23275 attached
[pid 23275] set_robust_list(0x55557a32b660, 24) = 0
[pid 23275] chdir("./22691")            = 0
[pid 23275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23275] setpgid(0, 0)               = 0
[pid 23275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23275] write(3, "1000", 4)         = 4
[pid 23275] close(3)                    = 0
[pid 23275] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23275] write(1, "executing program\n", 18) = 18
[pid 23275] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23275] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23275] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23275] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23275] exit_group(0)               = ?
[pid 23275] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23275, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22691", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22691", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22691/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22691/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22691/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22691")                        = 0
mkdir("./22692", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23276 attached
, child_tidptr=0x55557a32b650) = 23276
[pid 23276] set_robust_list(0x55557a32b660, 24) = 0
[pid 23276] chdir("./22692")            = 0
[pid 23276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23276] setpgid(0, 0)               = 0
[pid 23276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23276] write(3, "1000", 4)         = 4
[pid 23276] close(3)                    = 0
[pid 23276] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23276] write(1, "executing program\n", 18executing program
) = 18
[pid 23276] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23276] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23276] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23276] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23276] exit_group(0)               = ?
[pid 23276] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23276, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22692", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22692", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22692/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22692/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22692/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22692")                        = 0
mkdir("./22693", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23277
./strace-static-x86_64: Process 23277 attached
[pid 23277] set_robust_list(0x55557a32b660, 24) = 0
[pid 23277] chdir("./22693")            = 0
[pid 23277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23277] setpgid(0, 0)               = 0
[pid 23277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23277] write(3, "1000", 4)         = 4
[pid 23277] close(3)                    = 0
[pid 23277] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23277] write(1, "executing program\n", 18executing program
) = 18
[pid 23277] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23277] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23277] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23277] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23277] exit_group(0)               = ?
[pid 23277] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23277, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22693", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22693", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22693/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22693/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22693/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22693")                        = 0
mkdir("./22694", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23278 attached
, child_tidptr=0x55557a32b650) = 23278
[pid 23278] set_robust_list(0x55557a32b660, 24) = 0
[pid 23278] chdir("./22694")            = 0
[pid 23278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23278] setpgid(0, 0)               = 0
[pid 23278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23278] write(3, "1000", 4)         = 4
[pid 23278] close(3)                    = 0
[pid 23278] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23278] write(1, "executing program\n", 18executing program
) = 18
[pid 23278] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23278] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23278] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23278] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23278] exit_group(0)               = ?
[pid 23278] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23278, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22694", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22694", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22694/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22694/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22694/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22694")                        = 0
mkdir("./22695", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23279
./strace-static-x86_64: Process 23279 attached
[pid 23279] set_robust_list(0x55557a32b660, 24) = 0
[pid 23279] chdir("./22695")            = 0
[pid 23279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23279] setpgid(0, 0)               = 0
[pid 23279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23279] write(3, "1000", 4)         = 4
[pid 23279] close(3)                    = 0
[pid 23279] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23279] write(1, "executing program\n", 18executing program
) = 18
[pid 23279] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23279] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23279] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23279] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23279] exit_group(0)               = ?
[pid 23279] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23279, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22695", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22695", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22695/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22695/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22695/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22695")                        = 0
mkdir("./22696", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23280
./strace-static-x86_64: Process 23280 attached
[pid 23280] set_robust_list(0x55557a32b660, 24) = 0
[pid 23280] chdir("./22696")            = 0
[pid 23280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23280] setpgid(0, 0)               = 0
[pid 23280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23280] write(3, "1000", 4)         = 4
[pid 23280] close(3)                    = 0
[pid 23280] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23280] write(1, "executing program\n", 18executing program
) = 18
[pid 23280] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23280] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23280] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23280] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23280] exit_group(0)               = ?
[pid 23280] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23280, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22696", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22696", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22696/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22696/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22696/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22696")                        = 0
mkdir("./22697", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23281
./strace-static-x86_64: Process 23281 attached
[pid 23281] set_robust_list(0x55557a32b660, 24) = 0
[pid 23281] chdir("./22697")            = 0
[pid 23281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23281] setpgid(0, 0)               = 0
[pid 23281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23281] write(3, "1000", 4)         = 4
[pid 23281] close(3)                    = 0
[pid 23281] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23281] write(1, "executing program\n", 18executing program
) = 18
[pid 23281] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23281] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23281] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23281] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23281] exit_group(0)               = ?
[pid 23281] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23281, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22697", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22697", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22697/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22697/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22697/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22697")                        = 0
mkdir("./22698", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23282 attached
, child_tidptr=0x55557a32b650) = 23282
[pid 23282] set_robust_list(0x55557a32b660, 24) = 0
[pid 23282] chdir("./22698")            = 0
[pid 23282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23282] setpgid(0, 0)               = 0
[pid 23282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23282] write(3, "1000", 4)         = 4
[pid 23282] close(3)                    = 0
[pid 23282] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23282] write(1, "executing program\n", 18executing program
) = 18
[pid 23282] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23282] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23282] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23282] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23282] exit_group(0)               = ?
[pid 23282] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23282, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22698", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22698", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22698/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22698/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22698/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22698")                        = 0
mkdir("./22699", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23283
./strace-static-x86_64: Process 23283 attached
[pid 23283] set_robust_list(0x55557a32b660, 24) = 0
[pid 23283] chdir("./22699")            = 0
[pid 23283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23283] setpgid(0, 0)               = 0
[pid 23283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23283] write(3, "1000", 4)         = 4
[pid 23283] close(3)                    = 0
[pid 23283] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23283] write(1, "executing program\n", 18executing program
) = 18
[pid 23283] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23283] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23283] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23283] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23283] exit_group(0)               = ?
[pid 23283] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23283, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22699", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22699", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22699/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22699/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22699/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22699")                        = 0
mkdir("./22700", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23284
./strace-static-x86_64: Process 23284 attached
[pid 23284] set_robust_list(0x55557a32b660, 24) = 0
[pid 23284] chdir("./22700")            = 0
[pid 23284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23284] setpgid(0, 0)               = 0
[pid 23284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23284] write(3, "1000", 4)         = 4
[pid 23284] close(3)                    = 0
[pid 23284] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23284] write(1, "executing program\n", 18executing program
) = 18
[pid 23284] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23284] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23284] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23284] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23284] exit_group(0)               = ?
[pid 23284] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23284, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22700", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22700", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22700/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22700/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22700/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22700")                        = 0
mkdir("./22701", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23285
./strace-static-x86_64: Process 23285 attached
[pid 23285] set_robust_list(0x55557a32b660, 24) = 0
[pid 23285] chdir("./22701")            = 0
[pid 23285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23285] setpgid(0, 0)               = 0
[pid 23285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23285] write(3, "1000", 4)         = 4
[pid 23285] close(3)                    = 0
[pid 23285] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23285] write(1, "executing program\n", 18) = 18
[pid 23285] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23285] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23285] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23285] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23285] exit_group(0)               = ?
[pid 23285] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23285, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22701", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22701", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22701/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22701/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22701/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22701")                        = 0
mkdir("./22702", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23286
./strace-static-x86_64: Process 23286 attached
[pid 23286] set_robust_list(0x55557a32b660, 24) = 0
[pid 23286] chdir("./22702")            = 0
[pid 23286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23286] setpgid(0, 0)               = 0
[pid 23286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23286] write(3, "1000", 4)         = 4
[pid 23286] close(3)                    = 0
[pid 23286] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23286] write(1, "executing program\n", 18executing program
) = 18
[pid 23286] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23286] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23286] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23286] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23286] exit_group(0)               = ?
[pid 23286] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23286, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22702", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22702", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22702/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22702/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22702/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22702")                        = 0
mkdir("./22703", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23287
./strace-static-x86_64: Process 23287 attached
[pid 23287] set_robust_list(0x55557a32b660, 24) = 0
[pid 23287] chdir("./22703")            = 0
[pid 23287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23287] setpgid(0, 0)               = 0
[pid 23287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23287] write(3, "1000", 4)         = 4
[pid 23287] close(3)                    = 0
[pid 23287] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23287] write(1, "executing program\n", 18) = 18
[pid 23287] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23287] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23287] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23287] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23287] exit_group(0)               = ?
[pid 23287] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23287, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22703", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22703", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22703/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22703/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22703/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22703")                        = 0
mkdir("./22704", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23288
./strace-static-x86_64: Process 23288 attached
[pid 23288] set_robust_list(0x55557a32b660, 24) = 0
[pid 23288] chdir("./22704")            = 0
[pid 23288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23288] setpgid(0, 0)               = 0
[pid 23288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23288] write(3, "1000", 4)         = 4
[pid 23288] close(3)                    = 0
[pid 23288] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23288] write(1, "executing program\n", 18) = 18
[pid 23288] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23288] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23288] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23288] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23288] exit_group(0)               = ?
[pid 23288] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23288, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22704", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22704", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22704/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22704/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22704/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22704")                        = 0
mkdir("./22705", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23289 attached
, child_tidptr=0x55557a32b650) = 23289
[pid 23289] set_robust_list(0x55557a32b660, 24) = 0
[pid 23289] chdir("./22705")            = 0
[pid 23289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23289] setpgid(0, 0)               = 0
[pid 23289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23289] write(3, "1000", 4)         = 4
[pid 23289] close(3)                    = 0
[pid 23289] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23289] write(1, "executing program\n", 18executing program
) = 18
[pid 23289] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23289] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23289] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23289] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23289] exit_group(0)               = ?
[pid 23289] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23289, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22705", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22705", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22705/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22705/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22705/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22705")                        = 0
mkdir("./22706", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23291 attached
, child_tidptr=0x55557a32b650) = 23291
[pid 23291] set_robust_list(0x55557a32b660, 24) = 0
[pid 23291] chdir("./22706")            = 0
[pid 23291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23291] setpgid(0, 0)               = 0
[pid 23291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23291] write(3, "1000", 4)         = 4
[pid 23291] close(3)                    = 0
[pid 23291] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23291] write(1, "executing program\n", 18executing program
) = 18
[pid 23291] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23291] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23291] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23291] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23291] exit_group(0)               = ?
[pid 23291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23291, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22706", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22706", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22706/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22706/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22706/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22706")                        = 0
mkdir("./22707", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23292 attached
 <unfinished ...>
[pid 23292] set_robust_list(0x55557a32b660, 24) = 0
[pid 23292] chdir("./22707" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23292
[pid 23292] <... chdir resumed>)        = 0
[pid 23292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23292] setpgid(0, 0)               = 0
[pid 23292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23292] write(3, "1000", 4)         = 4
[pid 23292] close(3)                    = 0
[pid 23292] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23292] write(1, "executing program\n", 18executing program
) = 18
[pid 23292] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23292] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23292] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23292] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23292] exit_group(0)               = ?
[pid 23292] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23292, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22707", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22707", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22707/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22707/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22707/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22707")                        = 0
mkdir("./22708", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23293 attached
 <unfinished ...>
[pid 23293] set_robust_list(0x55557a32b660, 24) = 0
[pid 23293] chdir("./22708")            = 0
[pid 23293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23293] setpgid(0, 0)               = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23293
[pid 23293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23293] write(3, "1000", 4)         = 4
[pid 23293] close(3)                    = 0
[pid 23293] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23293] write(1, "executing program\n", 18) = 18
[pid 23293] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23293] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23293] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23293] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23293] exit_group(0)               = ?
[pid 23293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23293, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22708", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22708", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22708/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22708/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22708/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22708")                        = 0
mkdir("./22709", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23294
./strace-static-x86_64: Process 23294 attached
[pid 23294] set_robust_list(0x55557a32b660, 24) = 0
[pid 23294] chdir("./22709")            = 0
[pid 23294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23294] setpgid(0, 0)               = 0
[pid 23294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23294] write(3, "1000", 4)         = 4
[pid 23294] close(3)                    = 0
[pid 23294] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23294] write(1, "executing program\n", 18) = 18
[pid 23294] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23294] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23294] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23294] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23294] exit_group(0)               = ?
[pid 23294] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23294, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22709", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22709", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22709/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22709/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22709/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22709")                        = 0
mkdir("./22710", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23295
./strace-static-x86_64: Process 23295 attached
[pid 23295] set_robust_list(0x55557a32b660, 24) = 0
[pid 23295] chdir("./22710")            = 0
[pid 23295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23295] setpgid(0, 0)               = 0
[pid 23295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23295] write(3, "1000", 4)         = 4
[pid 23295] close(3)                    = 0
[pid 23295] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23295] write(1, "executing program\n", 18executing program
) = 18
[pid 23295] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23295] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23295] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23295] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23295] exit_group(0)               = ?
[pid 23295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23295, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22710", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22710", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22710/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22710/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22710/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22710")                        = 0
mkdir("./22711", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23296 attached
, child_tidptr=0x55557a32b650) = 23296
[pid 23296] set_robust_list(0x55557a32b660, 24) = 0
[pid 23296] chdir("./22711")            = 0
[pid 23296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23296] setpgid(0, 0)               = 0
[pid 23296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23296] write(3, "1000", 4)         = 4
[pid 23296] close(3)                    = 0
[pid 23296] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23296] write(1, "executing program\n", 18executing program
) = 18
[pid 23296] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23296] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23296] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23296] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23296] exit_group(0)               = ?
[pid 23296] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23296, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22711", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22711", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22711/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22711/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22711/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22711")                        = 0
mkdir("./22712", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23297
./strace-static-x86_64: Process 23297 attached
[pid 23297] set_robust_list(0x55557a32b660, 24) = 0
[pid 23297] chdir("./22712")            = 0
[pid 23297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23297] setpgid(0, 0)               = 0
[pid 23297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23297] write(3, "1000", 4)         = 4
[pid 23297] close(3)                    = 0
[pid 23297] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23297] write(1, "executing program\n", 18executing program
) = 18
[pid 23297] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23297] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23297] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23297] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23297] exit_group(0)               = ?
[pid 23297] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23297, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22712", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22712", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22712/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22712/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22712/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22712")                        = 0
mkdir("./22713", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23298 attached
, child_tidptr=0x55557a32b650) = 23298
[pid 23298] set_robust_list(0x55557a32b660, 24) = 0
[pid 23298] chdir("./22713")            = 0
[pid 23298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23298] setpgid(0, 0)               = 0
[pid 23298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23298] write(3, "1000", 4)         = 4
[pid 23298] close(3)                    = 0
[pid 23298] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23298] write(1, "executing program\n", 18executing program
) = 18
[pid 23298] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23298] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23298] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23298] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23298] exit_group(0)               = ?
[pid 23298] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23298, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22713", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22713", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22713/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22713/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22713/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22713")                        = 0
mkdir("./22714", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23299
./strace-static-x86_64: Process 23299 attached
[pid 23299] set_robust_list(0x55557a32b660, 24) = 0
[pid 23299] chdir("./22714")            = 0
[pid 23299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23299] setpgid(0, 0)               = 0
[pid 23299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23299] write(3, "1000", 4)         = 4
[pid 23299] close(3)                    = 0
[pid 23299] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23299] write(1, "executing program\n", 18executing program
) = 18
[pid 23299] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23299] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23299] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23299] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23299] exit_group(0)               = ?
[pid 23299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23299, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22714", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22714", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22714/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22714/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22714/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22714")                        = 0
mkdir("./22715", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23300
./strace-static-x86_64: Process 23300 attached
[pid 23300] set_robust_list(0x55557a32b660, 24) = 0
[pid 23300] chdir("./22715")            = 0
[pid 23300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23300] setpgid(0, 0)               = 0
[pid 23300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23300] write(3, "1000", 4)         = 4
[pid 23300] close(3)                    = 0
[pid 23300] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23300] write(1, "executing program\n", 18executing program
) = 18
[pid 23300] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23300] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23300] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23300] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23300] exit_group(0)               = ?
[pid 23300] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23300, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22715", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22715", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22715/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22715/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22715/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22715")                        = 0
mkdir("./22716", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23301
./strace-static-x86_64: Process 23301 attached
[pid 23301] set_robust_list(0x55557a32b660, 24) = 0
[pid 23301] chdir("./22716")            = 0
[pid 23301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23301] setpgid(0, 0)               = 0
[pid 23301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23301] write(3, "1000", 4)         = 4
[pid 23301] close(3)                    = 0
[pid 23301] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23301] write(1, "executing program\n", 18executing program
) = 18
[pid 23301] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23301] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23301] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23301] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23301] exit_group(0)               = ?
[pid 23301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23301, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22716", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22716", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22716/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22716/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22716/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22716")                        = 0
mkdir("./22717", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23302
./strace-static-x86_64: Process 23302 attached
[pid 23302] set_robust_list(0x55557a32b660, 24) = 0
[pid 23302] chdir("./22717")            = 0
[pid 23302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23302] setpgid(0, 0)               = 0
[pid 23302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23302] write(3, "1000", 4)         = 4
[pid 23302] close(3)                    = 0
[pid 23302] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23302] write(1, "executing program\n", 18executing program
) = 18
[pid 23302] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23302] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23302] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23302] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23302] exit_group(0)               = ?
[pid 23302] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23302, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22717", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22717", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22717/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22717/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22717/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22717")                        = 0
mkdir("./22718", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23303
./strace-static-x86_64: Process 23303 attached
[pid 23303] set_robust_list(0x55557a32b660, 24) = 0
[pid 23303] chdir("./22718")            = 0
[pid 23303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23303] setpgid(0, 0)               = 0
[pid 23303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23303] write(3, "1000", 4)         = 4
[pid 23303] close(3)                    = 0
[pid 23303] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23303] write(1, "executing program\n", 18executing program
) = 18
[pid 23303] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23303] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23303] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23303] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23303] exit_group(0)               = ?
[pid 23303] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23303, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22718", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22718", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22718/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22718/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22718/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22718")                        = 0
mkdir("./22719", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23304 attached
, child_tidptr=0x55557a32b650) = 23304
[pid 23304] set_robust_list(0x55557a32b660, 24) = 0
[pid 23304] chdir("./22719")            = 0
[pid 23304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23304] setpgid(0, 0)               = 0
[pid 23304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23304] write(3, "1000", 4)         = 4
[pid 23304] close(3)                    = 0
[pid 23304] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23304] write(1, "executing program\n", 18executing program
) = 18
[pid 23304] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23304] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23304] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23304] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23304] exit_group(0)               = ?
[pid 23304] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23304, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22719", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22719", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22719/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22719/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22719/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22719")                        = 0
mkdir("./22720", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23305
./strace-static-x86_64: Process 23305 attached
[pid 23305] set_robust_list(0x55557a32b660, 24) = 0
[pid 23305] chdir("./22720")            = 0
[pid 23305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23305] setpgid(0, 0)               = 0
[pid 23305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23305] write(3, "1000", 4)         = 4
[pid 23305] close(3)                    = 0
[pid 23305] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23305] write(1, "executing program\n", 18executing program
) = 18
[pid 23305] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23305] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23305] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23305] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23305] exit_group(0)               = ?
[pid 23305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23305, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22720", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22720", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22720/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22720/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22720/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22720")                        = 0
mkdir("./22721", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23306 attached
, child_tidptr=0x55557a32b650) = 23306
[pid 23306] set_robust_list(0x55557a32b660, 24) = 0
[pid 23306] chdir("./22721")            = 0
[pid 23306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23306] setpgid(0, 0)               = 0
[pid 23306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23306] write(3, "1000", 4)         = 4
[pid 23306] close(3)                    = 0
[pid 23306] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23306] write(1, "executing program\n", 18executing program
) = 18
[pid 23306] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23306] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23306] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23306] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23306] exit_group(0)               = ?
[pid 23306] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23306, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22721", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22721", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22721/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22721/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22721/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22721")                        = 0
mkdir("./22722", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23307
./strace-static-x86_64: Process 23307 attached
[pid 23307] set_robust_list(0x55557a32b660, 24) = 0
[pid 23307] chdir("./22722")            = 0
[pid 23307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23307] setpgid(0, 0)               = 0
[pid 23307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23307] write(3, "1000", 4)         = 4
[pid 23307] close(3)                    = 0
[pid 23307] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23307] write(1, "executing program\n", 18executing program
) = 18
[pid 23307] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23307] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23307] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23307] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23307] exit_group(0)               = ?
[pid 23307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23307, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22722", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22722", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22722/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22722/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22722/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22722")                        = 0
mkdir("./22723", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23308 attached
, child_tidptr=0x55557a32b650) = 23308
[pid 23308] set_robust_list(0x55557a32b660, 24) = 0
[pid 23308] chdir("./22723")            = 0
[pid 23308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23308] setpgid(0, 0)               = 0
[pid 23308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23308] write(3, "1000", 4)         = 4
[pid 23308] close(3)                    = 0
[pid 23308] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23308] write(1, "executing program\n", 18executing program
) = 18
[pid 23308] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23308] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23308] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23308] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23308] exit_group(0)               = ?
[pid 23308] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23308, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22723", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22723", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22723/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22723/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22723/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22723")                        = 0
mkdir("./22724", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23309
./strace-static-x86_64: Process 23309 attached
[pid 23309] set_robust_list(0x55557a32b660, 24) = 0
[pid 23309] chdir("./22724")            = 0
[pid 23309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23309] setpgid(0, 0)               = 0
[pid 23309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23309] write(3, "1000", 4)         = 4
[pid 23309] close(3)                    = 0
[pid 23309] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23309] write(1, "executing program\n", 18executing program
) = 18
[pid 23309] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23309] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23309] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23309] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23309] exit_group(0)               = ?
[pid 23309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23309, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22724", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22724", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22724/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22724/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22724/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22724")                        = 0
mkdir("./22725", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23310
./strace-static-x86_64: Process 23310 attached
[pid 23310] set_robust_list(0x55557a32b660, 24) = 0
[pid 23310] chdir("./22725")            = 0
[pid 23310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23310] setpgid(0, 0)               = 0
[pid 23310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23310] write(3, "1000", 4)         = 4
[pid 23310] close(3)                    = 0
[pid 23310] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23310] write(1, "executing program\n", 18executing program
) = 18
[pid 23310] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23310] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23310] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23310] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23310] exit_group(0)               = ?
[pid 23310] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23310, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22725", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22725", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22725/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22725/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22725/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22725")                        = 0
mkdir("./22726", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23311
./strace-static-x86_64: Process 23311 attached
[pid 23311] set_robust_list(0x55557a32b660, 24) = 0
[pid 23311] chdir("./22726")            = 0
[pid 23311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23311] setpgid(0, 0)               = 0
[pid 23311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23311] write(3, "1000", 4)         = 4
[pid 23311] close(3)                    = 0
[pid 23311] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23311] write(1, "executing program\n", 18executing program
) = 18
[pid 23311] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23311] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23311] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23311] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23311] exit_group(0)               = ?
[pid 23311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23311, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22726", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22726", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22726/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22726/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22726/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22726")                        = 0
mkdir("./22727", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23312 attached
, child_tidptr=0x55557a32b650) = 23312
[pid 23312] set_robust_list(0x55557a32b660, 24) = 0
[pid 23312] chdir("./22727")            = 0
[pid 23312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23312] setpgid(0, 0)               = 0
[pid 23312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23312] write(3, "1000", 4)         = 4
[pid 23312] close(3)                    = 0
[pid 23312] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23312] write(1, "executing program\n", 18executing program
) = 18
[pid 23312] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23312] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23312] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23312] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23312] exit_group(0)               = ?
[pid 23312] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23312, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22727", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22727", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22727/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22727/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22727/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22727")                        = 0
mkdir("./22728", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23313
./strace-static-x86_64: Process 23313 attached
[pid 23313] set_robust_list(0x55557a32b660, 24) = 0
[pid 23313] chdir("./22728")            = 0
[pid 23313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23313] setpgid(0, 0)               = 0
[pid 23313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23313] write(3, "1000", 4)         = 4
[pid 23313] close(3)                    = 0
[pid 23313] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23313] write(1, "executing program\n", 18executing program
) = 18
[pid 23313] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23313] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23313] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23313] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23313] exit_group(0)               = ?
[pid 23313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23313, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22728", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22728", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22728/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22728/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22728/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22728")                        = 0
mkdir("./22729", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23314
./strace-static-x86_64: Process 23314 attached
[pid 23314] set_robust_list(0x55557a32b660, 24) = 0
[pid 23314] chdir("./22729")            = 0
[pid 23314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23314] setpgid(0, 0)               = 0
[pid 23314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23314] write(3, "1000", 4)         = 4
[pid 23314] close(3)                    = 0
[pid 23314] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23314] write(1, "executing program\n", 18executing program
) = 18
[pid 23314] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23314] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23314] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23314] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23314] exit_group(0)               = ?
[pid 23314] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23314, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22729", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22729", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22729/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22729/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22729/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22729")                        = 0
mkdir("./22730", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23315 attached
 <unfinished ...>
[pid 23315] set_robust_list(0x55557a32b660, 24) = 0
[pid 23315] chdir("./22730" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23315
[pid 23315] <... chdir resumed>)        = 0
[pid 23315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23315] setpgid(0, 0)               = 0
[pid 23315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23315] write(3, "1000", 4)         = 4
[pid 23315] close(3)                    = 0
[pid 23315] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23315] write(1, "executing program\n", 18) = 18
[pid 23315] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23315] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23315] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23315] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23315] exit_group(0)               = ?
[pid 23315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23315, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22730", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22730", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22730/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22730/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22730/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22730")                        = 0
mkdir("./22731", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23316
./strace-static-x86_64: Process 23316 attached
[pid 23316] set_robust_list(0x55557a32b660, 24) = 0
[pid 23316] chdir("./22731")            = 0
[pid 23316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23316] setpgid(0, 0)               = 0
[pid 23316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23316] write(3, "1000", 4)         = 4
[pid 23316] close(3)                    = 0
[pid 23316] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23316] write(1, "executing program\n", 18executing program
) = 18
[pid 23316] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23316] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23316] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23316] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23316] exit_group(0)               = ?
[pid 23316] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23316, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22731", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22731", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22731/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22731/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22731/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22731")                        = 0
mkdir("./22732", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23317
./strace-static-x86_64: Process 23317 attached
[pid 23317] set_robust_list(0x55557a32b660, 24) = 0
[pid 23317] chdir("./22732")            = 0
[pid 23317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23317] setpgid(0, 0)               = 0
[pid 23317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23317] write(3, "1000", 4)         = 4
[pid 23317] close(3)                    = 0
[pid 23317] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23317] write(1, "executing program\n", 18executing program
) = 18
[pid 23317] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23317] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23317] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23317] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23317] exit_group(0)               = ?
[pid 23317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23317, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22732", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22732", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22732/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22732/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22732/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22732")                        = 0
mkdir("./22733", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23318
./strace-static-x86_64: Process 23318 attached
[pid 23318] set_robust_list(0x55557a32b660, 24) = 0
[pid 23318] chdir("./22733")            = 0
[pid 23318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23318] setpgid(0, 0)               = 0
[pid 23318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23318] write(3, "1000", 4)         = 4
[pid 23318] close(3)                    = 0
[pid 23318] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23318] write(1, "executing program\n", 18executing program
) = 18
[pid 23318] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23318] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23318] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23318] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23318] exit_group(0)               = ?
[pid 23318] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23318, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22733", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22733", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22733/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22733/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22733/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22733")                        = 0
mkdir("./22734", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23319
./strace-static-x86_64: Process 23319 attached
[pid 23319] set_robust_list(0x55557a32b660, 24) = 0
[pid 23319] chdir("./22734")            = 0
[pid 23319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23319] setpgid(0, 0)               = 0
[pid 23319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23319] write(3, "1000", 4)         = 4
[pid 23319] close(3)                    = 0
[pid 23319] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23319] write(1, "executing program\n", 18) = 18
[pid 23319] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23319] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23319] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23319] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23319] exit_group(0)               = ?
[pid 23319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23319, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22734", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22734", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22734/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22734/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22734/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22734")                        = 0
mkdir("./22735", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23320
./strace-static-x86_64: Process 23320 attached
[pid 23320] set_robust_list(0x55557a32b660, 24) = 0
[pid 23320] chdir("./22735")            = 0
[pid 23320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23320] setpgid(0, 0)               = 0
[pid 23320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23320] write(3, "1000", 4)         = 4
[pid 23320] close(3)                    = 0
[pid 23320] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23320] write(1, "executing program\n", 18executing program
) = 18
[pid 23320] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23320] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23320] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23320] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23320] exit_group(0)               = ?
[pid 23320] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23320, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22735", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22735", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22735/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22735/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22735/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22735")                        = 0
mkdir("./22736", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23321
./strace-static-x86_64: Process 23321 attached
[pid 23321] set_robust_list(0x55557a32b660, 24) = 0
[pid 23321] chdir("./22736")            = 0
[pid 23321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23321] setpgid(0, 0)               = 0
[pid 23321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23321] write(3, "1000", 4)         = 4
[pid 23321] close(3)                    = 0
[pid 23321] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23321] write(1, "executing program\n", 18executing program
) = 18
[pid 23321] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23321] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23321] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23321] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23321] exit_group(0)               = ?
[pid 23321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23321, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22736", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22736", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22736/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22736/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22736/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22736")                        = 0
mkdir("./22737", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23322 attached
, child_tidptr=0x55557a32b650) = 23322
[pid 23322] set_robust_list(0x55557a32b660, 24) = 0
[pid 23322] chdir("./22737")            = 0
[pid 23322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23322] setpgid(0, 0)               = 0
[pid 23322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23322] write(3, "1000", 4)         = 4
[pid 23322] close(3)                    = 0
[pid 23322] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23322] write(1, "executing program\n", 18executing program
) = 18
[pid 23322] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23322] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23322] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23322] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23322] exit_group(0)               = ?
[pid 23322] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23322, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22737", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22737", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22737/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22737/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22737/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22737")                        = 0
mkdir("./22738", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23323 attached
, child_tidptr=0x55557a32b650) = 23323
[pid 23323] set_robust_list(0x55557a32b660, 24) = 0
[pid 23323] chdir("./22738")            = 0
[pid 23323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23323] setpgid(0, 0)               = 0
[pid 23323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23323] write(3, "1000", 4)         = 4
[pid 23323] close(3)                    = 0
[pid 23323] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23323] write(1, "executing program\n", 18executing program
) = 18
[pid 23323] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23323] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23323] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23323] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23323] exit_group(0)               = ?
[pid 23323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23323, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22738", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22738", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22738/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22738/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22738/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22738")                        = 0
mkdir("./22739", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23324 attached
, child_tidptr=0x55557a32b650) = 23324
[pid 23324] set_robust_list(0x55557a32b660, 24) = 0
[pid 23324] chdir("./22739")            = 0
[pid 23324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23324] setpgid(0, 0)               = 0
[pid 23324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23324] write(3, "1000", 4)         = 4
[pid 23324] close(3)                    = 0
[pid 23324] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23324] write(1, "executing program\n", 18executing program
) = 18
[pid 23324] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23324] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23324] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23324] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23324] exit_group(0)               = ?
[pid 23324] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23324, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22739", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22739", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22739/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22739/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22739/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22739")                        = 0
mkdir("./22740", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23325
./strace-static-x86_64: Process 23325 attached
[pid 23325] set_robust_list(0x55557a32b660, 24) = 0
[pid 23325] chdir("./22740")            = 0
[pid 23325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23325] setpgid(0, 0)               = 0
[pid 23325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23325] write(3, "1000", 4)         = 4
[pid 23325] close(3)                    = 0
[pid 23325] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23325] write(1, "executing program\n", 18) = 18
[pid 23325] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23325] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23325] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23325] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23325] exit_group(0)               = ?
[pid 23325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23325, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22740", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22740", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22740/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22740/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22740/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22740")                        = 0
mkdir("./22741", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23326
./strace-static-x86_64: Process 23326 attached
[pid 23326] set_robust_list(0x55557a32b660, 24) = 0
[pid 23326] chdir("./22741")            = 0
[pid 23326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23326] setpgid(0, 0)               = 0
[pid 23326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23326] write(3, "1000", 4)         = 4
[pid 23326] close(3)                    = 0
[pid 23326] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23326] write(1, "executing program\n", 18executing program
) = 18
[pid 23326] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23326] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23326] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23326] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23326] exit_group(0)               = ?
[pid 23326] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23326, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22741", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22741", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22741/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22741/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22741/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22741")                        = 0
mkdir("./22742", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23327
./strace-static-x86_64: Process 23327 attached
[pid 23327] set_robust_list(0x55557a32b660, 24) = 0
[pid 23327] chdir("./22742")            = 0
[pid 23327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23327] setpgid(0, 0)               = 0
[pid 23327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23327] write(3, "1000", 4)         = 4
[pid 23327] close(3)                    = 0
[pid 23327] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23327] write(1, "executing program\n", 18executing program
) = 18
[pid 23327] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23327] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23327] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23327] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23327] exit_group(0)               = ?
[pid 23327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23327, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22742", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22742", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22742/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22742/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22742/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22742")                        = 0
mkdir("./22743", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23328
./strace-static-x86_64: Process 23328 attached
[pid 23328] set_robust_list(0x55557a32b660, 24) = 0
[pid 23328] chdir("./22743")            = 0
[pid 23328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23328] setpgid(0, 0)               = 0
[pid 23328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23328] write(3, "1000", 4)         = 4
[pid 23328] close(3)                    = 0
[pid 23328] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23328] write(1, "executing program\n", 18executing program
) = 18
[pid 23328] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23328] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23328] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23328] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23328] exit_group(0)               = ?
[pid 23328] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23328, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22743", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22743", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22743/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22743/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22743/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22743")                        = 0
mkdir("./22744", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23329 attached
, child_tidptr=0x55557a32b650) = 23329
[pid 23329] set_robust_list(0x55557a32b660, 24) = 0
[pid 23329] chdir("./22744")            = 0
[pid 23329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23329] setpgid(0, 0)               = 0
[pid 23329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23329] write(3, "1000", 4)         = 4
[pid 23329] close(3)                    = 0
[pid 23329] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23329] write(1, "executing program\n", 18executing program
) = 18
[pid 23329] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23329] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23329] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23329] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23329] exit_group(0)               = ?
[pid 23329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23329, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22744", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22744", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22744/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22744/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22744/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22744")                        = 0
mkdir("./22745", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23330 attached
, child_tidptr=0x55557a32b650) = 23330
[pid 23330] set_robust_list(0x55557a32b660, 24) = 0
[pid 23330] chdir("./22745")            = 0
[pid 23330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23330] setpgid(0, 0)               = 0
[pid 23330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23330] write(3, "1000", 4)         = 4
[pid 23330] close(3)                    = 0
[pid 23330] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23330] write(1, "executing program\n", 18executing program
) = 18
[pid 23330] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23330] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23330] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23330] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23330] exit_group(0)               = ?
[pid 23330] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23330, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22745", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22745", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22745/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22745/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22745/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22745")                        = 0
mkdir("./22746", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23331
./strace-static-x86_64: Process 23331 attached
[pid 23331] set_robust_list(0x55557a32b660, 24) = 0
[pid 23331] chdir("./22746")            = 0
[pid 23331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23331] setpgid(0, 0)               = 0
[pid 23331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23331] write(3, "1000", 4)         = 4
[pid 23331] close(3)                    = 0
[pid 23331] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23331] write(1, "executing program\n", 18executing program
) = 18
[pid 23331] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23331] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23331] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23331] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23331] exit_group(0)               = ?
[pid 23331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23331, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22746", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22746", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22746/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22746/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22746/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22746")                        = 0
mkdir("./22747", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23332
./strace-static-x86_64: Process 23332 attached
[pid 23332] set_robust_list(0x55557a32b660, 24) = 0
[pid 23332] chdir("./22747")            = 0
[pid 23332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23332] setpgid(0, 0)               = 0
[pid 23332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23332] write(3, "1000", 4)         = 4
[pid 23332] close(3)                    = 0
[pid 23332] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23332] write(1, "executing program\n", 18executing program
) = 18
[pid 23332] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23332] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23332] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23332] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23332] exit_group(0)               = ?
[pid 23332] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23332, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22747", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22747", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22747/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22747/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22747/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22747")                        = 0
mkdir("./22748", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23333
./strace-static-x86_64: Process 23333 attached
[pid 23333] set_robust_list(0x55557a32b660, 24) = 0
[pid 23333] chdir("./22748")            = 0
[pid 23333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23333] setpgid(0, 0)               = 0
[pid 23333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23333] write(3, "1000", 4)         = 4
[pid 23333] close(3)                    = 0
[pid 23333] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23333] write(1, "executing program\n", 18) = 18
[pid 23333] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23333] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23333] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23333] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23333] exit_group(0)               = ?
[pid 23333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23333, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22748", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22748", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22748/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22748/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22748/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22748")                        = 0
mkdir("./22749", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23334
./strace-static-x86_64: Process 23334 attached
[pid 23334] set_robust_list(0x55557a32b660, 24) = 0
[pid 23334] chdir("./22749")            = 0
[pid 23334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23334] setpgid(0, 0)               = 0
[pid 23334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23334] write(3, "1000", 4)         = 4
[pid 23334] close(3)                    = 0
[pid 23334] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23334] write(1, "executing program\n", 18) = 18
executing program
[pid 23334] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23334] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23334] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23334] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23334] exit_group(0)               = ?
[pid 23334] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23334, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22749", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22749", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22749/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22749/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22749/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22749")                        = 0
mkdir("./22750", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23335
./strace-static-x86_64: Process 23335 attached
[pid 23335] set_robust_list(0x55557a32b660, 24) = 0
[pid 23335] chdir("./22750")            = 0
[pid 23335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23335] setpgid(0, 0)               = 0
[pid 23335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23335] write(3, "1000", 4)         = 4
[pid 23335] close(3)                    = 0
[pid 23335] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23335] write(1, "executing program\n", 18executing program
) = 18
[pid 23335] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23335] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23335] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23335] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23335] exit_group(0)               = ?
[pid 23335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23335, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22750", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22750", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22750/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22750/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22750/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22750")                        = 0
mkdir("./22751", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23336 attached
, child_tidptr=0x55557a32b650) = 23336
[pid 23336] set_robust_list(0x55557a32b660, 24) = 0
[pid 23336] chdir("./22751")            = 0
[pid 23336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23336] setpgid(0, 0)               = 0
[pid 23336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23336] write(3, "1000", 4)         = 4
[pid 23336] close(3)                    = 0
[pid 23336] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23336] write(1, "executing program\n", 18executing program
) = 18
[pid 23336] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23336] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23336] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23336] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23336] exit_group(0)               = ?
[pid 23336] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23336, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22751", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22751", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22751/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22751/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22751/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22751")                        = 0
mkdir("./22752", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23337
./strace-static-x86_64: Process 23337 attached
[pid 23337] set_robust_list(0x55557a32b660, 24) = 0
[pid 23337] chdir("./22752")            = 0
[pid 23337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23337] setpgid(0, 0)               = 0
[pid 23337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23337] write(3, "1000", 4)         = 4
[pid 23337] close(3)                    = 0
[pid 23337] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23337] write(1, "executing program\n", 18executing program
) = 18
[pid 23337] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23337] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23337] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23337] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23337] exit_group(0)               = ?
[pid 23337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23337, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22752", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22752", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22752/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22752/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22752/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22752")                        = 0
mkdir("./22753", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23338
./strace-static-x86_64: Process 23338 attached
[pid 23338] set_robust_list(0x55557a32b660, 24) = 0
[pid 23338] chdir("./22753")            = 0
[pid 23338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23338] setpgid(0, 0)               = 0
[pid 23338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23338] write(3, "1000", 4)         = 4
[pid 23338] close(3)                    = 0
[pid 23338] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23338] write(1, "executing program\n", 18executing program
) = 18
[pid 23338] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23338] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23338] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23338] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23338] exit_group(0)               = ?
[pid 23338] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23338, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22753", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22753", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22753/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22753/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22753/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22753")                        = 0
mkdir("./22754", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23339 attached
, child_tidptr=0x55557a32b650) = 23339
[pid 23339] set_robust_list(0x55557a32b660, 24) = 0
[pid 23339] chdir("./22754")            = 0
[pid 23339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23339] setpgid(0, 0)               = 0
[pid 23339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23339] write(3, "1000", 4)         = 4
[pid 23339] close(3)                    = 0
[pid 23339] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23339] write(1, "executing program\n", 18executing program
) = 18
[pid 23339] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23339] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23339] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23339] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23339] exit_group(0)               = ?
[pid 23339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23339, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22754", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22754", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22754/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22754/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22754/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22754")                        = 0
mkdir("./22755", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23340 attached
, child_tidptr=0x55557a32b650) = 23340
[pid 23340] set_robust_list(0x55557a32b660, 24) = 0
[pid 23340] chdir("./22755")            = 0
[pid 23340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23340] setpgid(0, 0)               = 0
[pid 23340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23340] write(3, "1000", 4)         = 4
[pid 23340] close(3)                    = 0
[pid 23340] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23340] write(1, "executing program\n", 18executing program
) = 18
[pid 23340] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23340] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23340] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23340] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23340] exit_group(0)               = ?
[pid 23340] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23340, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22755", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22755", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22755/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22755/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22755/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22755")                        = 0
mkdir("./22756", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23341
./strace-static-x86_64: Process 23341 attached
[pid 23341] set_robust_list(0x55557a32b660, 24) = 0
[pid 23341] chdir("./22756")            = 0
[pid 23341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23341] setpgid(0, 0)               = 0
[pid 23341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23341] write(3, "1000", 4)         = 4
[pid 23341] close(3)                    = 0
[pid 23341] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23341] write(1, "executing program\n", 18executing program
) = 18
[pid 23341] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23341] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23341] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23341] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23341] exit_group(0)               = ?
[pid 23341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23341, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22756", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22756", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22756/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22756/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22756/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22756")                        = 0
mkdir("./22757", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23342 attached
, child_tidptr=0x55557a32b650) = 23342
[pid 23342] set_robust_list(0x55557a32b660, 24) = 0
[pid 23342] chdir("./22757")            = 0
[pid 23342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23342] setpgid(0, 0)               = 0
[pid 23342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23342] write(3, "1000", 4)         = 4
[pid 23342] close(3)                    = 0
[pid 23342] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23342] write(1, "executing program\n", 18executing program
) = 18
[pid 23342] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23342] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23342] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23342] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23342] exit_group(0)               = ?
[pid 23342] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23342, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22757", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22757", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22757/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22757/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22757/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22757")                        = 0
mkdir("./22758", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23343
./strace-static-x86_64: Process 23343 attached
[pid 23343] set_robust_list(0x55557a32b660, 24) = 0
[pid 23343] chdir("./22758")            = 0
[pid 23343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23343] setpgid(0, 0)               = 0
[pid 23343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23343] write(3, "1000", 4)         = 4
[pid 23343] close(3)                    = 0
[pid 23343] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23343] write(1, "executing program\n", 18) = 18
[pid 23343] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23343] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23343] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23343] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23343] exit_group(0)               = ?
[pid 23343] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23343, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22758", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22758", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22758/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22758/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22758/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22758")                        = 0
mkdir("./22759", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23344 attached
, child_tidptr=0x55557a32b650) = 23344
[pid 23344] set_robust_list(0x55557a32b660, 24) = 0
[pid 23344] chdir("./22759")            = 0
[pid 23344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23344] setpgid(0, 0)               = 0
[pid 23344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23344] write(3, "1000", 4)         = 4
[pid 23344] close(3)                    = 0
[pid 23344] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23344] write(1, "executing program\n", 18executing program
) = 18
[pid 23344] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23344] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23344] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23344] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23344] exit_group(0)               = ?
[pid 23344] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23344, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22759", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22759", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22759/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22759/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22759/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22759")                        = 0
mkdir("./22760", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23345
./strace-static-x86_64: Process 23345 attached
[pid 23345] set_robust_list(0x55557a32b660, 24) = 0
[pid 23345] chdir("./22760")            = 0
[pid 23345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23345] setpgid(0, 0)               = 0
[pid 23345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23345] write(3, "1000", 4)         = 4
[pid 23345] close(3)                    = 0
[pid 23345] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23345] write(1, "executing program\n", 18executing program
) = 18
[pid 23345] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23345] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23345] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23345] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23345] exit_group(0)               = ?
[pid 23345] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23345, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22760", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22760", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22760/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22760/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22760/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22760")                        = 0
mkdir("./22761", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23346 attached
, child_tidptr=0x55557a32b650) = 23346
[pid 23346] set_robust_list(0x55557a32b660, 24) = 0
[pid 23346] chdir("./22761")            = 0
[pid 23346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23346] setpgid(0, 0)               = 0
[pid 23346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23346] write(3, "1000", 4)         = 4
[pid 23346] close(3)                    = 0
[pid 23346] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23346] write(1, "executing program\n", 18executing program
) = 18
[pid 23346] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23346] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23346] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23346] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23346] exit_group(0)               = ?
[pid 23346] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23346, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22761", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22761", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22761/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22761/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22761/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22761")                        = 0
mkdir("./22762", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23347
./strace-static-x86_64: Process 23347 attached
[pid 23347] set_robust_list(0x55557a32b660, 24) = 0
[pid 23347] chdir("./22762")            = 0
[pid 23347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23347] setpgid(0, 0)               = 0
[pid 23347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23347] write(3, "1000", 4)         = 4
[pid 23347] close(3)                    = 0
[pid 23347] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23347] write(1, "executing program\n", 18executing program
) = 18
[pid 23347] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23347] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23347] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23347] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23347] exit_group(0)               = ?
[pid 23347] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23347, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22762", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22762", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22762/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22762/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22762/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22762")                        = 0
mkdir("./22763", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23348
./strace-static-x86_64: Process 23348 attached
[pid 23348] set_robust_list(0x55557a32b660, 24) = 0
[pid 23348] chdir("./22763")            = 0
[pid 23348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23348] setpgid(0, 0)               = 0
[pid 23348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23348] write(3, "1000", 4)         = 4
[pid 23348] close(3)                    = 0
[pid 23348] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23348] write(1, "executing program\n", 18executing program
) = 18
[pid 23348] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23348] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23348] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23348] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23348] exit_group(0)               = ?
[pid 23348] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23348, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22763", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22763", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22763/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22763/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22763/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22763")                        = 0
mkdir("./22764", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23349
./strace-static-x86_64: Process 23349 attached
[pid 23349] set_robust_list(0x55557a32b660, 24) = 0
[pid 23349] chdir("./22764")            = 0
[pid 23349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23349] setpgid(0, 0)               = 0
[pid 23349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23349] write(3, "1000", 4)         = 4
[pid 23349] close(3)                    = 0
[pid 23349] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23349] write(1, "executing program\n", 18) = 18
[pid 23349] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23349] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23349] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23349] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23349] exit_group(0)               = ?
[pid 23349] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23349, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22764", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22764", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22764/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22764/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22764/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22764")                        = 0
mkdir("./22765", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23350
./strace-static-x86_64: Process 23350 attached
[pid 23350] set_robust_list(0x55557a32b660, 24) = 0
[pid 23350] chdir("./22765")            = 0
[pid 23350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23350] setpgid(0, 0)               = 0
[pid 23350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23350] write(3, "1000", 4)         = 4
[pid 23350] close(3)                    = 0
[pid 23350] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23350] write(1, "executing program\n", 18) = 18
[pid 23350] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23350] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23350] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23350] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23350] exit_group(0)               = ?
[pid 23350] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23350, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22765", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22765", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22765/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22765/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22765/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22765")                        = 0
mkdir("./22766", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23351
./strace-static-x86_64: Process 23351 attached
[pid 23351] set_robust_list(0x55557a32b660, 24) = 0
[pid 23351] chdir("./22766")            = 0
[pid 23351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23351] setpgid(0, 0)               = 0
[pid 23351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23351] write(3, "1000", 4)         = 4
[pid 23351] close(3)                    = 0
[pid 23351] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23351] write(1, "executing program\n", 18executing program
) = 18
[pid 23351] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23351] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23351] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23351] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23351] exit_group(0)               = ?
[pid 23351] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23351, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22766", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22766", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22766/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22766/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22766/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22766")                        = 0
mkdir("./22767", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23352
./strace-static-x86_64: Process 23352 attached
[pid 23352] set_robust_list(0x55557a32b660, 24) = 0
[pid 23352] chdir("./22767")            = 0
[pid 23352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23352] setpgid(0, 0)               = 0
[pid 23352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23352] write(3, "1000", 4)         = 4
[pid 23352] close(3)                    = 0
[pid 23352] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23352] write(1, "executing program\n", 18executing program
) = 18
[pid 23352] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23352] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23352] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23352] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23352] exit_group(0)               = ?
[pid 23352] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23352, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22767", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22767", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22767/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22767/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22767/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22767")                        = 0
mkdir("./22768", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23353 attached
, child_tidptr=0x55557a32b650) = 23353
[pid 23353] set_robust_list(0x55557a32b660, 24) = 0
[pid 23353] chdir("./22768")            = 0
[pid 23353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23353] setpgid(0, 0)               = 0
[pid 23353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23353] write(3, "1000", 4)         = 4
[pid 23353] close(3)                    = 0
[pid 23353] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23353] write(1, "executing program\n", 18executing program
) = 18
[pid 23353] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23353] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23353] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23353] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23353] exit_group(0)               = ?
[pid 23353] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23353, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22768", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22768", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22768/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22768/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22768/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22768")                        = 0
mkdir("./22769", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23354
./strace-static-x86_64: Process 23354 attached
[pid 23354] set_robust_list(0x55557a32b660, 24) = 0
[pid 23354] chdir("./22769")            = 0
[pid 23354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23354] setpgid(0, 0)               = 0
[pid 23354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23354] write(3, "1000", 4)         = 4
[pid 23354] close(3)                    = 0
[pid 23354] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23354] write(1, "executing program\n", 18executing program
) = 18
[pid 23354] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23354] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23354] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23354] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23354] exit_group(0)               = ?
[pid 23354] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23354, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22769", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22769", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22769/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22769/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22769/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22769")                        = 0
mkdir("./22770", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23355 attached
, child_tidptr=0x55557a32b650) = 23355
[pid 23355] set_robust_list(0x55557a32b660, 24) = 0
[pid 23355] chdir("./22770")            = 0
[pid 23355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23355] setpgid(0, 0)               = 0
[pid 23355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23355] write(3, "1000", 4)         = 4
[pid 23355] close(3)                    = 0
[pid 23355] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23355] write(1, "executing program\n", 18executing program
) = 18
[pid 23355] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23355] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23355] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23355] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23355] exit_group(0)               = ?
[pid 23355] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23355, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22770", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22770", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22770/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22770/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22770/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22770")                        = 0
mkdir("./22771", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23356 attached
, child_tidptr=0x55557a32b650) = 23356
[pid 23356] set_robust_list(0x55557a32b660, 24) = 0
[pid 23356] chdir("./22771")            = 0
[pid 23356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23356] setpgid(0, 0)               = 0
[pid 23356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23356] write(3, "1000", 4)         = 4
[pid 23356] close(3)                    = 0
[pid 23356] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23356] write(1, "executing program\n", 18executing program
) = 18
[pid 23356] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23356] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23356] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23356] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23356] exit_group(0)               = ?
[pid 23356] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23356, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22771", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22771", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22771/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22771/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22771/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22771")                        = 0
mkdir("./22772", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23357
./strace-static-x86_64: Process 23357 attached
[pid 23357] set_robust_list(0x55557a32b660, 24) = 0
[pid 23357] chdir("./22772")            = 0
[pid 23357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23357] setpgid(0, 0)               = 0
[pid 23357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23357] write(3, "1000", 4)         = 4
[pid 23357] close(3)                    = 0
[pid 23357] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23357] write(1, "executing program\n", 18executing program
) = 18
[pid 23357] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23357] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23357] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23357] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23357] exit_group(0)               = ?
[pid 23357] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23357, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22772", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22772", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22772/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22772/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22772/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22772")                        = 0
mkdir("./22773", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23358 attached
, child_tidptr=0x55557a32b650) = 23358
[pid 23358] set_robust_list(0x55557a32b660, 24) = 0
[pid 23358] chdir("./22773")            = 0
[pid 23358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23358] setpgid(0, 0)               = 0
[pid 23358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23358] write(3, "1000", 4)         = 4
[pid 23358] close(3)                    = 0
[pid 23358] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23358] write(1, "executing program\n", 18executing program
) = 18
[pid 23358] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23358] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23358] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23358] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23358] exit_group(0)               = ?
[pid 23358] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23358, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22773", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22773", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22773/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22773/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22773/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22773")                        = 0
mkdir("./22774", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23359
./strace-static-x86_64: Process 23359 attached
[pid 23359] set_robust_list(0x55557a32b660, 24) = 0
[pid 23359] chdir("./22774")            = 0
[pid 23359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23359] setpgid(0, 0)               = 0
[pid 23359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23359] write(3, "1000", 4)         = 4
[pid 23359] close(3)                    = 0
[pid 23359] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23359] write(1, "executing program\n", 18executing program
) = 18
[pid 23359] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23359] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23359] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23359] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23359] exit_group(0)               = ?
[pid 23359] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23359, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22774", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22774", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22774/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22774/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22774/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22774")                        = 0
mkdir("./22775", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23360 attached
, child_tidptr=0x55557a32b650) = 23360
[pid 23360] set_robust_list(0x55557a32b660, 24) = 0
[pid 23360] chdir("./22775")            = 0
[pid 23360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23360] setpgid(0, 0)               = 0
[pid 23360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23360] write(3, "1000", 4)         = 4
[pid 23360] close(3)                    = 0
[pid 23360] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23360] write(1, "executing program\n", 18executing program
) = 18
[pid 23360] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23360] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23360] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23360] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23360] exit_group(0)               = ?
[pid 23360] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23360, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22775", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22775", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22775/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22775/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22775/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22775")                        = 0
mkdir("./22776", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23361
./strace-static-x86_64: Process 23361 attached
[pid 23361] set_robust_list(0x55557a32b660, 24) = 0
[pid 23361] chdir("./22776")            = 0
[pid 23361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23361] setpgid(0, 0)               = 0
[pid 23361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23361] write(3, "1000", 4)         = 4
[pid 23361] close(3)                    = 0
[pid 23361] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23361] write(1, "executing program\n", 18) = 18
[pid 23361] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23361] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23361] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23361] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23361] exit_group(0)               = ?
[pid 23361] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23361, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22776", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22776", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22776/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22776/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22776/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22776")                        = 0
mkdir("./22777", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23362
./strace-static-x86_64: Process 23362 attached
[pid 23362] set_robust_list(0x55557a32b660, 24) = 0
[pid 23362] chdir("./22777")            = 0
[pid 23362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23362] setpgid(0, 0)               = 0
[pid 23362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23362] write(3, "1000", 4)         = 4
[pid 23362] close(3)                    = 0
[pid 23362] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23362] write(1, "executing program\n", 18executing program
) = 18
[pid 23362] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23362] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23362] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23362] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23362] exit_group(0)               = ?
[pid 23362] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23362, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22777", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22777", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22777/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22777/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22777/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22777")                        = 0
mkdir("./22778", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23363
./strace-static-x86_64: Process 23363 attached
[pid 23363] set_robust_list(0x55557a32b660, 24) = 0
[pid 23363] chdir("./22778")            = 0
[pid 23363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23363] setpgid(0, 0)               = 0
[pid 23363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23363] write(3, "1000", 4)         = 4
[pid 23363] close(3)                    = 0
[pid 23363] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23363] write(1, "executing program\n", 18) = 18
[pid 23363] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23363] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23363] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23363] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23363] exit_group(0)               = ?
[pid 23363] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23363, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22778", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22778", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22778/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22778/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22778/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22778")                        = 0
mkdir("./22779", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23364
./strace-static-x86_64: Process 23364 attached
[pid 23364] set_robust_list(0x55557a32b660, 24) = 0
[pid 23364] chdir("./22779")            = 0
[pid 23364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23364] setpgid(0, 0)               = 0
[pid 23364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23364] write(3, "1000", 4)         = 4
[pid 23364] close(3)                    = 0
[pid 23364] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23364] write(1, "executing program\n", 18) = 18
[pid 23364] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23364] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23364] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23364] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23364] exit_group(0)               = ?
[pid 23364] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23364, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22779", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22779", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22779/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22779/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22779/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22779")                        = 0
mkdir("./22780", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23365 attached
, child_tidptr=0x55557a32b650) = 23365
[pid 23365] set_robust_list(0x55557a32b660, 24) = 0
[pid 23365] chdir("./22780")            = 0
[pid 23365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23365] setpgid(0, 0)               = 0
[pid 23365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23365] write(3, "1000", 4)         = 4
[pid 23365] close(3)                    = 0
[pid 23365] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23365] write(1, "executing program\n", 18executing program
) = 18
[pid 23365] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23365] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23365] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23365] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23365] exit_group(0)               = ?
[pid 23365] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23365, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22780", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22780", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22780/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22780/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22780/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22780")                        = 0
mkdir("./22781", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23366 attached
, child_tidptr=0x55557a32b650) = 23366
[pid 23366] set_robust_list(0x55557a32b660, 24) = 0
[pid 23366] chdir("./22781")            = 0
[pid 23366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23366] setpgid(0, 0)               = 0
[pid 23366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23366] write(3, "1000", 4)         = 4
[pid 23366] close(3)                    = 0
[pid 23366] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23366] write(1, "executing program\n", 18executing program
) = 18
[pid 23366] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23366] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23366] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23366] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23366] exit_group(0)               = ?
[pid 23366] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23366, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22781", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22781", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22781/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22781/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22781/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22781")                        = 0
mkdir("./22782", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23367
./strace-static-x86_64: Process 23367 attached
[pid 23367] set_robust_list(0x55557a32b660, 24) = 0
[pid 23367] chdir("./22782")            = 0
[pid 23367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23367] setpgid(0, 0)               = 0
[pid 23367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23367] write(3, "1000", 4)         = 4
[pid 23367] close(3)                    = 0
[pid 23367] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23367] write(1, "executing program\n", 18executing program
) = 18
[pid 23367] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23367] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23367] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23367] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23367] exit_group(0)               = ?
[pid 23367] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23367, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22782", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22782", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22782/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22782/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22782/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22782")                        = 0
mkdir("./22783", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23368
./strace-static-x86_64: Process 23368 attached
[pid 23368] set_robust_list(0x55557a32b660, 24) = 0
[pid 23368] chdir("./22783")            = 0
[pid 23368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23368] setpgid(0, 0)               = 0
[pid 23368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23368] write(3, "1000", 4)         = 4
[pid 23368] close(3)                    = 0
[pid 23368] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23368] write(1, "executing program\n", 18executing program
) = 18
[pid 23368] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23368] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23368] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23368] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23368] exit_group(0)               = ?
[pid 23368] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23368, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22783", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22783", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22783/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22783/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22783/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22783")                        = 0
mkdir("./22784", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23370
./strace-static-x86_64: Process 23370 attached
[pid 23370] set_robust_list(0x55557a32b660, 24) = 0
[pid 23370] chdir("./22784")            = 0
[pid 23370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23370] setpgid(0, 0)               = 0
executing program
[pid 23370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23370] write(3, "1000", 4)         = 4
[pid 23370] close(3)                    = 0
[pid 23370] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23370] write(1, "executing program\n", 18) = 18
[pid 23370] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23370] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23370] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23370] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23370] exit_group(0)               = ?
[pid 23370] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23370, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22784", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22784", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22784/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22784/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22784/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22784")                        = 0
mkdir("./22785", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23371 attached
, child_tidptr=0x55557a32b650) = 23371
[pid 23371] set_robust_list(0x55557a32b660, 24) = 0
[pid 23371] chdir("./22785")            = 0
[pid 23371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23371] setpgid(0, 0)               = 0
[pid 23371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23371] write(3, "1000", 4)         = 4
[pid 23371] close(3)                    = 0
[pid 23371] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23371] write(1, "executing program\n", 18executing program
) = 18
[pid 23371] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23371] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23371] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23371] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23371] exit_group(0)               = ?
[pid 23371] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23371, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22785", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22785", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22785/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22785/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22785/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22785")                        = 0
mkdir("./22786", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23372 attached
, child_tidptr=0x55557a32b650) = 23372
[pid 23372] set_robust_list(0x55557a32b660, 24) = 0
[pid 23372] chdir("./22786")            = 0
[pid 23372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23372] setpgid(0, 0)               = 0
[pid 23372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23372] write(3, "1000", 4)         = 4
[pid 23372] close(3)                    = 0
[pid 23372] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23372] write(1, "executing program\n", 18executing program
) = 18
[pid 23372] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23372] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23372] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23372] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23372] exit_group(0)               = ?
[pid 23372] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23372, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22786", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22786", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22786/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22786/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22786/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22786")                        = 0
mkdir("./22787", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23373
./strace-static-x86_64: Process 23373 attached
[pid 23373] set_robust_list(0x55557a32b660, 24) = 0
[pid 23373] chdir("./22787")            = 0
[pid 23373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23373] setpgid(0, 0)               = 0
[pid 23373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23373] write(3, "1000", 4)         = 4
[pid 23373] close(3)                    = 0
[pid 23373] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23373] write(1, "executing program\n", 18executing program
) = 18
[pid 23373] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23373] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23373] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23373] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23373] exit_group(0)               = ?
[pid 23373] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23373, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22787", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22787", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22787/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22787/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22787/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22787")                        = 0
mkdir("./22788", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23374
./strace-static-x86_64: Process 23374 attached
[pid 23374] set_robust_list(0x55557a32b660, 24) = 0
[pid 23374] chdir("./22788")            = 0
[pid 23374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23374] setpgid(0, 0)               = 0
[pid 23374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23374] write(3, "1000", 4)         = 4
[pid 23374] close(3)                    = 0
[pid 23374] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23374] write(1, "executing program\n", 18executing program
) = 18
[pid 23374] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23374] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23374] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23374] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23374] exit_group(0)               = ?
[pid 23374] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23374, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22788", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22788", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22788/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22788/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22788/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22788")                        = 0
mkdir("./22789", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23375
./strace-static-x86_64: Process 23375 attached
[pid 23375] set_robust_list(0x55557a32b660, 24) = 0
[pid 23375] chdir("./22789")            = 0
[pid 23375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23375] setpgid(0, 0)               = 0
[pid 23375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23375] write(3, "1000", 4)         = 4
[pid 23375] close(3)                    = 0
[pid 23375] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23375] write(1, "executing program\n", 18executing program
) = 18
[pid 23375] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23375] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23375] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23375] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23375] exit_group(0)               = ?
[pid 23375] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23375, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22789", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22789", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22789/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22789/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22789/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22789")                        = 0
mkdir("./22790", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23376
./strace-static-x86_64: Process 23376 attached
[pid 23376] set_robust_list(0x55557a32b660, 24) = 0
[pid 23376] chdir("./22790")            = 0
[pid 23376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23376] setpgid(0, 0)               = 0
[pid 23376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23376] write(3, "1000", 4)         = 4
[pid 23376] close(3)                    = 0
[pid 23376] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23376] write(1, "executing program\n", 18executing program
) = 18
[pid 23376] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23376] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23376] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23376] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23376] exit_group(0)               = ?
[pid 23376] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23376, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22790", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22790", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22790/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22790/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22790/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22790")                        = 0
mkdir("./22791", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23377
./strace-static-x86_64: Process 23377 attached
[pid 23377] set_robust_list(0x55557a32b660, 24) = 0
[pid 23377] chdir("./22791")            = 0
[pid 23377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23377] setpgid(0, 0)               = 0
[pid 23377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23377] write(3, "1000", 4)         = 4
[pid 23377] close(3)                    = 0
[pid 23377] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23377] write(1, "executing program\n", 18executing program
) = 18
[pid 23377] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23377] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23377] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23377] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23377] exit_group(0)               = ?
[pid 23377] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23377, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22791", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22791", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22791/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22791/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22791/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22791")                        = 0
mkdir("./22792", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23378
./strace-static-x86_64: Process 23378 attached
[pid 23378] set_robust_list(0x55557a32b660, 24) = 0
[pid 23378] chdir("./22792")            = 0
[pid 23378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23378] setpgid(0, 0)               = 0
[pid 23378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23378] write(3, "1000", 4)         = 4
[pid 23378] close(3)                    = 0
[pid 23378] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23378] write(1, "executing program\n", 18executing program
) = 18
[pid 23378] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23378] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23378] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23378] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23378] exit_group(0)               = ?
[pid 23378] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23378, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22792", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22792", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22792/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22792/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22792/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22792")                        = 0
mkdir("./22793", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23379
./strace-static-x86_64: Process 23379 attached
[pid 23379] set_robust_list(0x55557a32b660, 24) = 0
[pid 23379] chdir("./22793")            = 0
[pid 23379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23379] setpgid(0, 0)               = 0
[pid 23379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23379] write(3, "1000", 4)         = 4
[pid 23379] close(3)                    = 0
[pid 23379] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23379] write(1, "executing program\n", 18executing program
) = 18
[pid 23379] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23379] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23379] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23379] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23379] exit_group(0)               = ?
[pid 23379] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23379, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22793", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22793", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22793/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22793/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22793/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22793")                        = 0
mkdir("./22794", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23380 attached
, child_tidptr=0x55557a32b650) = 23380
[pid 23380] set_robust_list(0x55557a32b660, 24) = 0
[pid 23380] chdir("./22794")            = 0
[pid 23380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23380] setpgid(0, 0)               = 0
[pid 23380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23380] write(3, "1000", 4)         = 4
[pid 23380] close(3)                    = 0
[pid 23380] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23380] write(1, "executing program\n", 18executing program
) = 18
[pid 23380] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23380] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23380] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23380] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23380] exit_group(0)               = ?
[pid 23380] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23380, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22794", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22794", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22794/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22794/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22794/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22794")                        = 0
mkdir("./22795", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23381 attached
 <unfinished ...>
[pid 23381] set_robust_list(0x55557a32b660, 24) = 0
[pid 23381] chdir("./22795" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23381
[pid 23381] <... chdir resumed>)        = 0
[pid 23381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23381] setpgid(0, 0)               = 0
[pid 23381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23381] write(3, "1000", 4)         = 4
[pid 23381] close(3)                    = 0
[pid 23381] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23381] write(1, "executing program\n", 18) = 18
[pid 23381] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23381] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23381] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23381] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23381] exit_group(0)               = ?
[pid 23381] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23381, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22795", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22795", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22795/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22795/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22795/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22795")                        = 0
mkdir("./22796", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23382 attached
, child_tidptr=0x55557a32b650) = 23382
[pid 23382] set_robust_list(0x55557a32b660, 24) = 0
[pid 23382] chdir("./22796")            = 0
[pid 23382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23382] setpgid(0, 0)               = 0
[pid 23382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23382] write(3, "1000", 4)         = 4
[pid 23382] close(3)                    = 0
[pid 23382] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23382] write(1, "executing program\n", 18executing program
) = 18
[pid 23382] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23382] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23382] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23382] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23382] exit_group(0)               = ?
[pid 23382] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23382, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22796", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22796", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22796/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22796/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22796/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22796")                        = 0
mkdir("./22797", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23383 attached
, child_tidptr=0x55557a32b650) = 23383
[pid 23383] set_robust_list(0x55557a32b660, 24) = 0
[pid 23383] chdir("./22797")            = 0
[pid 23383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23383] setpgid(0, 0)               = 0
[pid 23383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23383] write(3, "1000", 4)         = 4
[pid 23383] close(3)                    = 0
[pid 23383] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23383] write(1, "executing program\n", 18executing program
) = 18
[pid 23383] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23383] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23383] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23383] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23383] exit_group(0)               = ?
[pid 23383] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23383, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22797", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22797", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22797/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22797/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22797/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22797")                        = 0
mkdir("./22798", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23384
./strace-static-x86_64: Process 23384 attached
[pid 23384] set_robust_list(0x55557a32b660, 24) = 0
[pid 23384] chdir("./22798")            = 0
[pid 23384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23384] setpgid(0, 0)               = 0
[pid 23384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23384] write(3, "1000", 4)         = 4
[pid 23384] close(3)                    = 0
executing program
[pid 23384] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23384] write(1, "executing program\n", 18) = 18
[pid 23384] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23384] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23384] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23384] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23384] exit_group(0)               = ?
[pid 23384] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23384, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22798", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22798", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22798/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22798/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22798/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22798")                        = 0
mkdir("./22799", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23385
./strace-static-x86_64: Process 23385 attached
[pid 23385] set_robust_list(0x55557a32b660, 24) = 0
[pid 23385] chdir("./22799")            = 0
[pid 23385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23385] setpgid(0, 0)               = 0
[pid 23385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23385] write(3, "1000", 4)         = 4
[pid 23385] close(3)                    = 0
[pid 23385] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23385] write(1, "executing program\n", 18executing program
) = 18
[pid 23385] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23385] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23385] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23385] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23385] exit_group(0)               = ?
[pid 23385] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23385, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22799", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22799", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22799/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22799/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22799/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22799")                        = 0
mkdir("./22800", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23386
./strace-static-x86_64: Process 23386 attached
[pid 23386] set_robust_list(0x55557a32b660, 24) = 0
[pid 23386] chdir("./22800")            = 0
[pid 23386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23386] setpgid(0, 0)               = 0
[pid 23386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23386] write(3, "1000", 4)         = 4
[pid 23386] close(3)                    = 0
[pid 23386] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23386] write(1, "executing program\n", 18executing program
) = 18
[pid 23386] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23386] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23386] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23386] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23386] exit_group(0)               = ?
[pid 23386] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23386, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22800", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22800", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22800/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22800/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22800/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22800")                        = 0
mkdir("./22801", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23387
./strace-static-x86_64: Process 23387 attached
[pid 23387] set_robust_list(0x55557a32b660, 24) = 0
[pid 23387] chdir("./22801")            = 0
[pid 23387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23387] setpgid(0, 0)               = 0
[pid 23387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23387] write(3, "1000", 4)         = 4
[pid 23387] close(3)                    = 0
[pid 23387] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23387] write(1, "executing program\n", 18executing program
) = 18
[pid 23387] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23387] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23387] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23387] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23387] exit_group(0)               = ?
[pid 23387] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23387, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22801", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22801", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22801/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22801/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22801/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22801")                        = 0
mkdir("./22802", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23388 attached
, child_tidptr=0x55557a32b650) = 23388
[pid 23388] set_robust_list(0x55557a32b660, 24) = 0
[pid 23388] chdir("./22802")            = 0
[pid 23388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23388] setpgid(0, 0)               = 0
[pid 23388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23388] write(3, "1000", 4)         = 4
[pid 23388] close(3)                    = 0
[pid 23388] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23388] write(1, "executing program\n", 18executing program
) = 18
[pid 23388] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23388] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23388] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23388] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23388] exit_group(0)               = ?
[pid 23388] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23388, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22802", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22802", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22802/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22802/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22802/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22802")                        = 0
mkdir("./22803", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23389
./strace-static-x86_64: Process 23389 attached
[pid 23389] set_robust_list(0x55557a32b660, 24) = 0
[pid 23389] chdir("./22803")            = 0
[pid 23389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23389] setpgid(0, 0)               = 0
[pid 23389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23389] write(3, "1000", 4)         = 4
[pid 23389] close(3)                    = 0
[pid 23389] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23389] write(1, "executing program\n", 18executing program
) = 18
[pid 23389] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23389] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23389] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23389] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23389] exit_group(0)               = ?
[pid 23389] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23389, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22803", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22803", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22803/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22803/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22803/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22803")                        = 0
mkdir("./22804", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23390
./strace-static-x86_64: Process 23390 attached
[pid 23390] set_robust_list(0x55557a32b660, 24) = 0
[pid 23390] chdir("./22804")            = 0
[pid 23390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23390] setpgid(0, 0)               = 0
[pid 23390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23390] write(3, "1000", 4)         = 4
[pid 23390] close(3)                    = 0
[pid 23390] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23390] write(1, "executing program\n", 18executing program
) = 18
[pid 23390] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23390] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23390] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23390] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23390] exit_group(0)               = ?
[pid 23390] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23390, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22804", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22804", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22804/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22804/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22804/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22804")                        = 0
mkdir("./22805", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23391
./strace-static-x86_64: Process 23391 attached
[pid 23391] set_robust_list(0x55557a32b660, 24) = 0
[pid 23391] chdir("./22805")            = 0
[pid 23391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23391] setpgid(0, 0)               = 0
[pid 23391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23391] write(3, "1000", 4)         = 4
[pid 23391] close(3)                    = 0
[pid 23391] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23391] write(1, "executing program\n", 18executing program
) = 18
[pid 23391] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23391] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23391] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23391] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23391] exit_group(0)               = ?
[pid 23391] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23391, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22805", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22805", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22805/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22805/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22805/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22805")                        = 0
mkdir("./22806", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23392
./strace-static-x86_64: Process 23392 attached
[pid 23392] set_robust_list(0x55557a32b660, 24) = 0
[pid 23392] chdir("./22806")            = 0
[pid 23392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23392] setpgid(0, 0)               = 0
[pid 23392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23392] write(3, "1000", 4)         = 4
[pid 23392] close(3)                    = 0
[pid 23392] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23392] write(1, "executing program\n", 18executing program
) = 18
[pid 23392] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23392] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23392] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23392] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23392] exit_group(0)               = ?
[pid 23392] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23392, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22806", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22806", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22806/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22806/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22806/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22806")                        = 0
mkdir("./22807", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23393
./strace-static-x86_64: Process 23393 attached
[pid 23393] set_robust_list(0x55557a32b660, 24) = 0
[pid 23393] chdir("./22807")            = 0
[pid 23393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23393] setpgid(0, 0)               = 0
[pid 23393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23393] write(3, "1000", 4)         = 4
[pid 23393] close(3)                    = 0
[pid 23393] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23393] write(1, "executing program\n", 18executing program
) = 18
[pid 23393] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23393] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23393] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23393] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23393] exit_group(0)               = ?
[pid 23393] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23393, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22807", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22807", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22807/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22807/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22807/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22807")                        = 0
mkdir("./22808", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23394 attached
, child_tidptr=0x55557a32b650) = 23394
[pid 23394] set_robust_list(0x55557a32b660, 24) = 0
[pid 23394] chdir("./22808")            = 0
[pid 23394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23394] setpgid(0, 0)               = 0
[pid 23394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23394] write(3, "1000", 4)         = 4
[pid 23394] close(3)                    = 0
[pid 23394] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23394] write(1, "executing program\n", 18executing program
) = 18
[pid 23394] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23394] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23394] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23394] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23394] exit_group(0)               = ?
[pid 23394] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23394, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22808", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22808", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22808/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22808/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22808/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22808")                        = 0
mkdir("./22809", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23395 attached
, child_tidptr=0x55557a32b650) = 23395
[pid 23395] set_robust_list(0x55557a32b660, 24) = 0
[pid 23395] chdir("./22809")            = 0
[pid 23395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23395] setpgid(0, 0)               = 0
[pid 23395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23395] write(3, "1000", 4)         = 4
[pid 23395] close(3)                    = 0
[pid 23395] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23395] write(1, "executing program\n", 18executing program
) = 18
[pid 23395] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23395] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23395] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23395] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23395] exit_group(0)               = ?
[pid 23395] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23395, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22809", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22809", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22809/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22809/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22809/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22809")                        = 0
mkdir("./22810", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23396
./strace-static-x86_64: Process 23396 attached
[pid 23396] set_robust_list(0x55557a32b660, 24) = 0
[pid 23396] chdir("./22810")            = 0
[pid 23396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23396] setpgid(0, 0)               = 0
[pid 23396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23396] write(3, "1000", 4)         = 4
[pid 23396] close(3)                    = 0
[pid 23396] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23396] write(1, "executing program\n", 18executing program
) = 18
[pid 23396] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23396] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23396] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23396] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23396] exit_group(0)               = ?
[pid 23396] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23396, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22810", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22810", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22810/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22810/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22810/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22810")                        = 0
mkdir("./22811", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23397 attached
, child_tidptr=0x55557a32b650) = 23397
[pid 23397] set_robust_list(0x55557a32b660, 24) = 0
[pid 23397] chdir("./22811")            = 0
[pid 23397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23397] setpgid(0, 0)               = 0
[pid 23397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23397] write(3, "1000", 4)         = 4
[pid 23397] close(3)                    = 0
[pid 23397] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23397] write(1, "executing program\n", 18executing program
) = 18
[pid 23397] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23397] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23397] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23397] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23397] exit_group(0)               = ?
[pid 23397] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23397, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22811", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22811", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22811/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22811/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22811/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22811")                        = 0
mkdir("./22812", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23398
./strace-static-x86_64: Process 23398 attached
[pid 23398] set_robust_list(0x55557a32b660, 24) = 0
[pid 23398] chdir("./22812")            = 0
[pid 23398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23398] setpgid(0, 0)               = 0
[pid 23398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23398] write(3, "1000", 4)         = 4
[pid 23398] close(3)                    = 0
[pid 23398] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23398] write(1, "executing program\n", 18executing program
) = 18
[pid 23398] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23398] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23398] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23398] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23398] exit_group(0)               = ?
[pid 23398] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23398, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22812", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22812", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22812/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22812/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22812/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22812")                        = 0
mkdir("./22813", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23399
./strace-static-x86_64: Process 23399 attached
[pid 23399] set_robust_list(0x55557a32b660, 24) = 0
[pid 23399] chdir("./22813")            = 0
[pid 23399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23399] setpgid(0, 0)               = 0
[pid 23399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23399] write(3, "1000", 4)         = 4
[pid 23399] close(3)                    = 0
[pid 23399] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23399] write(1, "executing program\n", 18executing program
) = 18
[pid 23399] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23399] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23399] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23399] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23399] exit_group(0)               = ?
[pid 23399] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23399, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22813", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22813", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22813/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22813/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22813/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22813")                        = 0
mkdir("./22814", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23400
./strace-static-x86_64: Process 23400 attached
[pid 23400] set_robust_list(0x55557a32b660, 24) = 0
[pid 23400] chdir("./22814")            = 0
[pid 23400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23400] setpgid(0, 0)               = 0
[pid 23400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23400] write(3, "1000", 4)         = 4
[pid 23400] close(3)                    = 0
[pid 23400] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23400] write(1, "executing program\n", 18) = 18
[pid 23400] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23400] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23400] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23400] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23400] exit_group(0)               = ?
[pid 23400] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23400, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22814", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22814", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22814/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22814/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22814/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22814")                        = 0
mkdir("./22815", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23401
./strace-static-x86_64: Process 23401 attached
[pid 23401] set_robust_list(0x55557a32b660, 24) = 0
[pid 23401] chdir("./22815")            = 0
[pid 23401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23401] setpgid(0, 0)               = 0
[pid 23401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23401] write(3, "1000", 4)         = 4
[pid 23401] close(3)                    = 0
[pid 23401] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23401] write(1, "executing program\n", 18executing program
) = 18
[pid 23401] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23401] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23401] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23401] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23401] exit_group(0)               = ?
[pid 23401] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23401, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22815", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22815", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22815/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22815/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22815/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22815")                        = 0
mkdir("./22816", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23402
./strace-static-x86_64: Process 23402 attached
[pid 23402] set_robust_list(0x55557a32b660, 24) = 0
[pid 23402] chdir("./22816")            = 0
[pid 23402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23402] setpgid(0, 0)               = 0
[pid 23402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23402] write(3, "1000", 4)         = 4
[pid 23402] close(3)                    = 0
[pid 23402] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23402] write(1, "executing program\n", 18executing program
) = 18
[pid 23402] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23402] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23402] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23402] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23402] exit_group(0)               = ?
[pid 23402] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23402, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22816", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22816", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22816/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22816/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22816/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22816")                        = 0
mkdir("./22817", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23403 attached
, child_tidptr=0x55557a32b650) = 23403
[pid 23403] set_robust_list(0x55557a32b660, 24) = 0
[pid 23403] chdir("./22817")            = 0
[pid 23403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23403] setpgid(0, 0)               = 0
[pid 23403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23403] write(3, "1000", 4)         = 4
[pid 23403] close(3)                    = 0
[pid 23403] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23403] write(1, "executing program\n", 18executing program
) = 18
[pid 23403] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23403] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23403] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23403] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23403] exit_group(0)               = ?
[pid 23403] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23403, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22817", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22817", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22817/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22817/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22817/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22817")                        = 0
mkdir("./22818", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23404
./strace-static-x86_64: Process 23404 attached
[pid 23404] set_robust_list(0x55557a32b660, 24) = 0
[pid 23404] chdir("./22818")            = 0
[pid 23404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23404] setpgid(0, 0)               = 0
[pid 23404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23404] write(3, "1000", 4)         = 4
[pid 23404] close(3)                    = 0
[pid 23404] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23404] write(1, "executing program\n", 18executing program
) = 18
[pid 23404] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23404] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23404] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23404] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23404] exit_group(0)               = ?
[pid 23404] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23404, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22818", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22818", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22818/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22818/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22818/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22818")                        = 0
mkdir("./22819", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23405
./strace-static-x86_64: Process 23405 attached
[pid 23405] set_robust_list(0x55557a32b660, 24) = 0
[pid 23405] chdir("./22819")            = 0
[pid 23405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23405] setpgid(0, 0)               = 0
[pid 23405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23405] write(3, "1000", 4)         = 4
[pid 23405] close(3)                    = 0
[pid 23405] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23405] write(1, "executing program\n", 18executing program
) = 18
[pid 23405] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23405] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23405] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23405] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23405] exit_group(0)               = ?
[pid 23405] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23405, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22819", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22819", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22819/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22819/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22819/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22819")                        = 0
mkdir("./22820", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23406
./strace-static-x86_64: Process 23406 attached
[pid 23406] set_robust_list(0x55557a32b660, 24) = 0
[pid 23406] chdir("./22820")            = 0
[pid 23406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23406] setpgid(0, 0)               = 0
[pid 23406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23406] write(3, "1000", 4)         = 4
[pid 23406] close(3)                    = 0
[pid 23406] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23406] write(1, "executing program\n", 18executing program
) = 18
[pid 23406] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23406] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23406] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23406] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23406] exit_group(0)               = ?
[pid 23406] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23406, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22820", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22820", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22820/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22820/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22820/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22820")                        = 0
mkdir("./22821", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23407
./strace-static-x86_64: Process 23407 attached
[pid 23407] set_robust_list(0x55557a32b660, 24) = 0
[pid 23407] chdir("./22821")            = 0
[pid 23407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23407] setpgid(0, 0)               = 0
[pid 23407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23407] write(3, "1000", 4)         = 4
[pid 23407] close(3)                    = 0
[pid 23407] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23407] write(1, "executing program\n", 18executing program
) = 18
[pid 23407] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23407] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23407] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23407] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23407] exit_group(0)               = ?
[pid 23407] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23407, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22821", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22821", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22821/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22821/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22821/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22821")                        = 0
mkdir("./22822", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23408 attached
, child_tidptr=0x55557a32b650) = 23408
[pid 23408] set_robust_list(0x55557a32b660, 24) = 0
[pid 23408] chdir("./22822")            = 0
[pid 23408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23408] setpgid(0, 0)               = 0
[pid 23408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23408] write(3, "1000", 4)         = 4
[pid 23408] close(3)                    = 0
[pid 23408] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23408] write(1, "executing program\n", 18executing program
) = 18
[pid 23408] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23408] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23408] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23408] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23408] exit_group(0)               = ?
[pid 23408] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23408, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22822", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22822", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22822/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22822/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22822/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22822")                        = 0
mkdir("./22823", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23409 attached
, child_tidptr=0x55557a32b650) = 23409
[pid 23409] set_robust_list(0x55557a32b660, 24) = 0
[pid 23409] chdir("./22823")            = 0
[pid 23409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23409] setpgid(0, 0)               = 0
[pid 23409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23409] write(3, "1000", 4)         = 4
[pid 23409] close(3)                    = 0
[pid 23409] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23409] write(1, "executing program\n", 18executing program
) = 18
[pid 23409] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23409] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23409] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23409] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23409] exit_group(0)               = ?
[pid 23409] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23409, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22823", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22823", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22823/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22823/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22823/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22823")                        = 0
mkdir("./22824", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23410 attached
, child_tidptr=0x55557a32b650) = 23410
[pid 23410] set_robust_list(0x55557a32b660, 24) = 0
[pid 23410] chdir("./22824")            = 0
[pid 23410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23410] setpgid(0, 0)               = 0
[pid 23410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23410] write(3, "1000", 4)         = 4
[pid 23410] close(3)                    = 0
[pid 23410] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23410] write(1, "executing program\n", 18executing program
) = 18
[pid 23410] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23410] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23410] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23410] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23410] exit_group(0)               = ?
[pid 23410] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22824", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22824", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22824/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22824/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22824/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22824")                        = 0
mkdir("./22825", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23411 attached
, child_tidptr=0x55557a32b650) = 23411
[pid 23411] set_robust_list(0x55557a32b660, 24) = 0
[pid 23411] chdir("./22825")            = 0
[pid 23411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23411] setpgid(0, 0)               = 0
[pid 23411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23411] write(3, "1000", 4)         = 4
[pid 23411] close(3)                    = 0
[pid 23411] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23411] write(1, "executing program\n", 18executing program
) = 18
[pid 23411] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23411] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23411] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23411] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23411] exit_group(0)               = ?
[pid 23411] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23411, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22825", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22825", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22825/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22825/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22825/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22825")                        = 0
mkdir("./22826", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23412
./strace-static-x86_64: Process 23412 attached
[pid 23412] set_robust_list(0x55557a32b660, 24) = 0
[pid 23412] chdir("./22826")            = 0
[pid 23412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23412] setpgid(0, 0)               = 0
[pid 23412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23412] write(3, "1000", 4)         = 4
[pid 23412] close(3)                    = 0
[pid 23412] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23412] write(1, "executing program\n", 18) = 18
[pid 23412] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23412] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23412] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23412] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23412] exit_group(0)               = ?
[pid 23412] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23412, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22826", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22826", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22826/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22826/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22826/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22826")                        = 0
mkdir("./22827", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23413
./strace-static-x86_64: Process 23413 attached
[pid 23413] set_robust_list(0x55557a32b660, 24) = 0
[pid 23413] chdir("./22827")            = 0
[pid 23413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23413] setpgid(0, 0)               = 0
[pid 23413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23413] write(3, "1000", 4)         = 4
[pid 23413] close(3)                    = 0
[pid 23413] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23413] write(1, "executing program\n", 18executing program
) = 18
[pid 23413] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23413] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23413] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23413] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23413] exit_group(0)               = ?
[pid 23413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23413, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22827", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22827", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22827/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22827/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22827/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22827")                        = 0
mkdir("./22828", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23414 attached
, child_tidptr=0x55557a32b650) = 23414
[pid 23414] set_robust_list(0x55557a32b660, 24) = 0
[pid 23414] chdir("./22828")            = 0
[pid 23414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23414] setpgid(0, 0)               = 0
[pid 23414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23414] write(3, "1000", 4)         = 4
[pid 23414] close(3)                    = 0
[pid 23414] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23414] write(1, "executing program\n", 18executing program
) = 18
[pid 23414] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23414] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23414] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23414] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23414] exit_group(0)               = ?
[pid 23414] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23414, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22828", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22828", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22828/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22828/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22828/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22828")                        = 0
mkdir("./22829", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23415 attached
, child_tidptr=0x55557a32b650) = 23415
[pid 23415] set_robust_list(0x55557a32b660, 24) = 0
[pid 23415] chdir("./22829")            = 0
[pid 23415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23415] setpgid(0, 0)               = 0
[pid 23415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23415] write(3, "1000", 4)         = 4
[pid 23415] close(3)                    = 0
[pid 23415] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23415] write(1, "executing program\n", 18executing program
) = 18
[pid 23415] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23415] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23415] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23415] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23415] exit_group(0)               = ?
[pid 23415] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23415, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22829", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22829", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22829/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22829/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22829/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22829")                        = 0
mkdir("./22830", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23416 attached
 <unfinished ...>
[pid 23416] set_robust_list(0x55557a32b660, 24) = 0
[pid 23416] chdir("./22830" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23416
[pid 23416] <... chdir resumed>)        = 0
[pid 23416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23416] setpgid(0, 0)               = 0
[pid 23416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23416] write(3, "1000", 4)         = 4
[pid 23416] close(3)                    = 0
[pid 23416] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23416] write(1, "executing program\n", 18executing program
) = 18
[pid 23416] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23416] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23416] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23416] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23416] exit_group(0)               = ?
[pid 23416] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23416, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22830", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22830", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22830/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22830/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22830/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22830")                        = 0
mkdir("./22831", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23417 attached
, child_tidptr=0x55557a32b650) = 23417
[pid 23417] set_robust_list(0x55557a32b660, 24) = 0
[pid 23417] chdir("./22831")            = 0
[pid 23417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23417] setpgid(0, 0)               = 0
[pid 23417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23417] write(3, "1000", 4)         = 4
[pid 23417] close(3)                    = 0
[pid 23417] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23417] write(1, "executing program\n", 18executing program
) = 18
[pid 23417] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23417] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23417] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23417] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23417] exit_group(0)               = ?
[pid 23417] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23417, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22831", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22831", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22831/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22831/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22831/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22831")                        = 0
mkdir("./22832", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23418
./strace-static-x86_64: Process 23418 attached
[pid 23418] set_robust_list(0x55557a32b660, 24) = 0
[pid 23418] chdir("./22832")            = 0
[pid 23418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23418] setpgid(0, 0)               = 0
[pid 23418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23418] write(3, "1000", 4)         = 4
[pid 23418] close(3)                    = 0
[pid 23418] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23418] write(1, "executing program\n", 18executing program
) = 18
[pid 23418] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23418] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23418] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23418] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23418] exit_group(0)               = ?
[pid 23418] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23418, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22832", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22832", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22832/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22832/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22832/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22832")                        = 0
mkdir("./22833", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23419
./strace-static-x86_64: Process 23419 attached
[pid 23419] set_robust_list(0x55557a32b660, 24) = 0
[pid 23419] chdir("./22833")            = 0
[pid 23419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23419] setpgid(0, 0)               = 0
[pid 23419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23419] write(3, "1000", 4)         = 4
[pid 23419] close(3)                    = 0
[pid 23419] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23419] write(1, "executing program\n", 18executing program
) = 18
[pid 23419] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23419] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23419] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23419] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23419] exit_group(0)               = ?
[pid 23419] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23419, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22833", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22833", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22833/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22833/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22833/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22833")                        = 0
mkdir("./22834", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23420
./strace-static-x86_64: Process 23420 attached
[pid 23420] set_robust_list(0x55557a32b660, 24) = 0
[pid 23420] chdir("./22834")            = 0
[pid 23420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23420] setpgid(0, 0)               = 0
[pid 23420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23420] write(3, "1000", 4)         = 4
[pid 23420] close(3)                    = 0
[pid 23420] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23420] write(1, "executing program\n", 18executing program
) = 18
[pid 23420] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23420] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23420] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23420] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23420] exit_group(0)               = ?
[pid 23420] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23420, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22834", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22834", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22834/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22834/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22834/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22834")                        = 0
mkdir("./22835", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23421
./strace-static-x86_64: Process 23421 attached
[pid 23421] set_robust_list(0x55557a32b660, 24) = 0
[pid 23421] chdir("./22835")            = 0
[pid 23421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23421] setpgid(0, 0)               = 0
[pid 23421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23421] write(3, "1000", 4)         = 4
[pid 23421] close(3)                    = 0
[pid 23421] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23421] write(1, "executing program\n", 18executing program
) = 18
[pid 23421] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23421] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23421] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23421] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23421] exit_group(0)               = ?
[pid 23421] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23421, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22835", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22835", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22835/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22835/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22835/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22835")                        = 0
mkdir("./22836", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23422 attached
, child_tidptr=0x55557a32b650) = 23422
[pid 23422] set_robust_list(0x55557a32b660, 24) = 0
[pid 23422] chdir("./22836")            = 0
[pid 23422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23422] setpgid(0, 0)               = 0
[pid 23422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23422] write(3, "1000", 4)         = 4
[pid 23422] close(3)                    = 0
[pid 23422] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23422] write(1, "executing program\n", 18executing program
) = 18
[pid 23422] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23422] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23422] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23422] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23422] exit_group(0)               = ?
[pid 23422] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23422, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22836", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22836", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22836/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22836/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22836/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22836")                        = 0
mkdir("./22837", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23423
./strace-static-x86_64: Process 23423 attached
[pid 23423] set_robust_list(0x55557a32b660, 24) = 0
[pid 23423] chdir("./22837")            = 0
[pid 23423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23423] setpgid(0, 0)               = 0
[pid 23423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23423] write(3, "1000", 4)         = 4
[pid 23423] close(3)                    = 0
[pid 23423] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23423] write(1, "executing program\n", 18executing program
) = 18
[pid 23423] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23423] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23423] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23423] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23423] exit_group(0)               = ?
[pid 23423] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23423, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22837", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22837", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22837/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22837/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22837/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22837")                        = 0
mkdir("./22838", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23424 attached
 <unfinished ...>
[pid 23424] set_robust_list(0x55557a32b660, 24) = 0
[pid 23424] chdir("./22838" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23424
[pid 23424] <... chdir resumed>)        = 0
[pid 23424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23424] setpgid(0, 0)               = 0
[pid 23424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23424] write(3, "1000", 4)         = 4
[pid 23424] close(3)                    = 0
[pid 23424] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23424] write(1, "executing program\n", 18executing program
) = 18
[pid 23424] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23424] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23424] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23424] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23424] exit_group(0)               = ?
[pid 23424] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23424, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22838", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22838", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22838/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22838/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22838/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22838")                        = 0
mkdir("./22839", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23425
./strace-static-x86_64: Process 23425 attached
[pid 23425] set_robust_list(0x55557a32b660, 24) = 0
[pid 23425] chdir("./22839")            = 0
[pid 23425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23425] setpgid(0, 0)               = 0
[pid 23425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23425] write(3, "1000", 4)         = 4
[pid 23425] close(3)                    = 0
[pid 23425] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23425] write(1, "executing program\n", 18executing program
) = 18
[pid 23425] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23425] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23425] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23425] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23425] exit_group(0)               = ?
[pid 23425] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23425, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22839", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22839", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22839/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22839/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22839/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22839")                        = 0
mkdir("./22840", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23426
./strace-static-x86_64: Process 23426 attached
[pid 23426] set_robust_list(0x55557a32b660, 24) = 0
[pid 23426] chdir("./22840")            = 0
[pid 23426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23426] setpgid(0, 0)               = 0
[pid 23426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23426] write(3, "1000", 4)         = 4
[pid 23426] close(3)                    = 0
[pid 23426] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23426] write(1, "executing program\n", 18executing program
) = 18
[pid 23426] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23426] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23426] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23426] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23426] exit_group(0)               = ?
[pid 23426] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23426, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22840", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22840", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22840/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22840/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22840/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22840")                        = 0
mkdir("./22841", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23427
./strace-static-x86_64: Process 23427 attached
[pid 23427] set_robust_list(0x55557a32b660, 24) = 0
[pid 23427] chdir("./22841")            = 0
[pid 23427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23427] setpgid(0, 0)               = 0
[pid 23427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23427] write(3, "1000", 4)         = 4
[pid 23427] close(3)                    = 0
[pid 23427] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23427] write(1, "executing program\n", 18executing program
) = 18
[pid 23427] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23427] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23427] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23427] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23427] exit_group(0)               = ?
[pid 23427] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23427, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22841", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22841", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22841/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22841/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22841/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22841")                        = 0
mkdir("./22842", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23428
./strace-static-x86_64: Process 23428 attached
[pid 23428] set_robust_list(0x55557a32b660, 24) = 0
[pid 23428] chdir("./22842")            = 0
[pid 23428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23428] setpgid(0, 0)               = 0
[pid 23428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23428] write(3, "1000", 4)         = 4
[pid 23428] close(3)                    = 0
[pid 23428] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23428] write(1, "executing program\n", 18) = 18
[pid 23428] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23428] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23428] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23428] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23428] exit_group(0)               = ?
[pid 23428] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23428, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22842", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22842", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22842/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22842/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22842/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22842")                        = 0
mkdir("./22843", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23429 attached
, child_tidptr=0x55557a32b650) = 23429
[pid 23429] set_robust_list(0x55557a32b660, 24) = 0
[pid 23429] chdir("./22843")            = 0
[pid 23429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23429] setpgid(0, 0)               = 0
[pid 23429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23429] write(3, "1000", 4)         = 4
[pid 23429] close(3)                    = 0
[pid 23429] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23429] write(1, "executing program\n", 18executing program
) = 18
[pid 23429] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23429] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23429] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23429] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23429] exit_group(0)               = ?
[pid 23429] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23429, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22843", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22843", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22843/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22843/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22843/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22843")                        = 0
mkdir("./22844", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23430
./strace-static-x86_64: Process 23430 attached
[pid 23430] set_robust_list(0x55557a32b660, 24) = 0
[pid 23430] chdir("./22844")            = 0
[pid 23430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23430] setpgid(0, 0)               = 0
[pid 23430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23430] write(3, "1000", 4)         = 4
[pid 23430] close(3)                    = 0
[pid 23430] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23430] write(1, "executing program\n", 18) = 18
[pid 23430] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23430] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23430] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23430] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23430] exit_group(0)               = ?
[pid 23430] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23430, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22844", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22844", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22844/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22844/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22844/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22844")                        = 0
mkdir("./22845", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23431
./strace-static-x86_64: Process 23431 attached
[pid 23431] set_robust_list(0x55557a32b660, 24) = 0
[pid 23431] chdir("./22845")            = 0
[pid 23431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23431] setpgid(0, 0)               = 0
[pid 23431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23431] write(3, "1000", 4)         = 4
[pid 23431] close(3)                    = 0
[pid 23431] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23431] write(1, "executing program\n", 18executing program
) = 18
[pid 23431] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23431] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23431] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23431] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23431] exit_group(0)               = ?
[pid 23431] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23431, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22845", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22845", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22845/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22845/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22845/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22845")                        = 0
mkdir("./22846", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23432
./strace-static-x86_64: Process 23432 attached
[pid 23432] set_robust_list(0x55557a32b660, 24) = 0
[pid 23432] chdir("./22846")            = 0
[pid 23432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23432] setpgid(0, 0)               = 0
[pid 23432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23432] write(3, "1000", 4)         = 4
[pid 23432] close(3)                    = 0
[pid 23432] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23432] write(1, "executing program\n", 18) = 18
[pid 23432] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23432] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23432] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23432] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23432] exit_group(0)               = ?
[pid 23432] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23432, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22846", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22846", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22846/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22846/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22846/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22846")                        = 0
mkdir("./22847", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23433
./strace-static-x86_64: Process 23433 attached
[pid 23433] set_robust_list(0x55557a32b660, 24) = 0
[pid 23433] chdir("./22847")            = 0
[pid 23433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23433] setpgid(0, 0)               = 0
[pid 23433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23433] write(3, "1000", 4)         = 4
[pid 23433] close(3)                    = 0
[pid 23433] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23433] write(1, "executing program\n", 18executing program
) = 18
[pid 23433] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23433] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23433] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23433] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23433] exit_group(0)               = ?
[pid 23433] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23433, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22847", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22847", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22847/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22847/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22847/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22847")                        = 0
mkdir("./22848", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23434
./strace-static-x86_64: Process 23434 attached
[pid 23434] set_robust_list(0x55557a32b660, 24) = 0
[pid 23434] chdir("./22848")            = 0
[pid 23434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23434] setpgid(0, 0)               = 0
[pid 23434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23434] write(3, "1000", 4)         = 4
[pid 23434] close(3)                    = 0
[pid 23434] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23434] write(1, "executing program\n", 18) = 18
[pid 23434] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23434] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23434] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23434] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23434] exit_group(0)               = ?
[pid 23434] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23434, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22848", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22848", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22848/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22848/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22848/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22848")                        = 0
mkdir("./22849", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23435 attached
, child_tidptr=0x55557a32b650) = 23435
[pid 23435] set_robust_list(0x55557a32b660, 24) = 0
[pid 23435] chdir("./22849")            = 0
[pid 23435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23435] setpgid(0, 0)               = 0
[pid 23435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23435] write(3, "1000", 4)         = 4
[pid 23435] close(3)                    = 0
[pid 23435] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23435] write(1, "executing program\n", 18executing program
) = 18
[pid 23435] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23435] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23435] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23435] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23435] exit_group(0)               = ?
[pid 23435] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23435, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22849", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22849", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22849/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22849/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22849/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22849")                        = 0
mkdir("./22850", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23436
./strace-static-x86_64: Process 23436 attached
[pid 23436] set_robust_list(0x55557a32b660, 24) = 0
[pid 23436] chdir("./22850")            = 0
[pid 23436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23436] setpgid(0, 0)               = 0
[pid 23436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23436] write(3, "1000", 4)         = 4
[pid 23436] close(3)                    = 0
[pid 23436] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23436] write(1, "executing program\n", 18) = 18
[pid 23436] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23436] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23436] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23436] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23436] exit_group(0)               = ?
[pid 23436] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23436, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22850", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22850", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22850/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22850/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22850/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22850")                        = 0
mkdir("./22851", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23437
./strace-static-x86_64: Process 23437 attached
[pid 23437] set_robust_list(0x55557a32b660, 24) = 0
[pid 23437] chdir("./22851")            = 0
[pid 23437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23437] setpgid(0, 0)               = 0
[pid 23437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23437] write(3, "1000", 4)         = 4
[pid 23437] close(3)                    = 0
[pid 23437] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23437] write(1, "executing program\n", 18executing program
) = 18
[pid 23437] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23437] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23437] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23437] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23437] exit_group(0)               = ?
[pid 23437] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23437, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22851", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22851", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22851/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22851/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22851/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22851")                        = 0
mkdir("./22852", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23438
./strace-static-x86_64: Process 23438 attached
[pid 23438] set_robust_list(0x55557a32b660, 24) = 0
[pid 23438] chdir("./22852")            = 0
[pid 23438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23438] setpgid(0, 0)               = 0
[pid 23438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23438] write(3, "1000", 4)         = 4
[pid 23438] close(3)                    = 0
[pid 23438] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23438] write(1, "executing program\n", 18executing program
) = 18
[pid 23438] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23438] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23438] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23438] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23438] exit_group(0)               = ?
[pid 23438] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23438, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22852", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22852", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22852/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22852/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22852/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22852")                        = 0
mkdir("./22853", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23439
./strace-static-x86_64: Process 23439 attached
[pid 23439] set_robust_list(0x55557a32b660, 24) = 0
[pid 23439] chdir("./22853")            = 0
[pid 23439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23439] setpgid(0, 0)               = 0
[pid 23439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23439] write(3, "1000", 4)         = 4
[pid 23439] close(3)                    = 0
[pid 23439] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23439] write(1, "executing program\n", 18executing program
) = 18
[pid 23439] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23439] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23439] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23439] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23439] exit_group(0)               = ?
[pid 23439] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23439, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22853", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22853", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22853/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22853/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22853/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22853")                        = 0
mkdir("./22854", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23440
./strace-static-x86_64: Process 23440 attached
[pid 23440] set_robust_list(0x55557a32b660, 24) = 0
[pid 23440] chdir("./22854")            = 0
[pid 23440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23440] setpgid(0, 0)               = 0
[pid 23440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23440] write(3, "1000", 4)         = 4
[pid 23440] close(3)                    = 0
[pid 23440] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23440] write(1, "executing program\n", 18executing program
) = 18
[pid 23440] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23440] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23440] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23440] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23440] exit_group(0)               = ?
[pid 23440] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23440, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22854", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22854", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22854/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22854/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22854/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22854")                        = 0
mkdir("./22855", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23441 attached
, child_tidptr=0x55557a32b650) = 23441
[pid 23441] set_robust_list(0x55557a32b660, 24) = 0
[pid 23441] chdir("./22855")            = 0
[pid 23441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23441] setpgid(0, 0)               = 0
[pid 23441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23441] write(3, "1000", 4)         = 4
[pid 23441] close(3)                    = 0
[pid 23441] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23441] write(1, "executing program\n", 18executing program
) = 18
[pid 23441] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23441] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23441] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23441] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23441] exit_group(0)               = ?
[pid 23441] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23441, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22855", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22855", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22855/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22855/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22855/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22855")                        = 0
mkdir("./22856", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23442
./strace-static-x86_64: Process 23442 attached
[pid 23442] set_robust_list(0x55557a32b660, 24) = 0
[pid 23442] chdir("./22856")            = 0
[pid 23442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23442] setpgid(0, 0)               = 0
[pid 23442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23442] write(3, "1000", 4)         = 4
[pid 23442] close(3)                    = 0
[pid 23442] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23442] write(1, "executing program\n", 18executing program
) = 18
[pid 23442] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23442] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23442] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23442] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23442] exit_group(0)               = ?
[pid 23442] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23442, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22856", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22856", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22856/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22856/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22856/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22856")                        = 0
mkdir("./22857", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23443 attached
, child_tidptr=0x55557a32b650) = 23443
[pid 23443] set_robust_list(0x55557a32b660, 24) = 0
[pid 23443] chdir("./22857")            = 0
[pid 23443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23443] setpgid(0, 0)               = 0
[pid 23443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23443] write(3, "1000", 4)         = 4
[pid 23443] close(3)                    = 0
[pid 23443] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23443] write(1, "executing program\n", 18executing program
) = 18
[pid 23443] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23443] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23443] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23443] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23443] exit_group(0)               = ?
[pid 23443] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23443, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22857", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22857", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22857/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22857/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22857/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22857")                        = 0
mkdir("./22858", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23444
./strace-static-x86_64: Process 23444 attached
[pid 23444] set_robust_list(0x55557a32b660, 24) = 0
[pid 23444] chdir("./22858")            = 0
[pid 23444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23444] setpgid(0, 0)               = 0
[pid 23444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23444] write(3, "1000", 4)         = 4
[pid 23444] close(3)                    = 0
[pid 23444] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23444] write(1, "executing program\n", 18) = 18
[pid 23444] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23444] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23444] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23444] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23444] exit_group(0)               = ?
[pid 23444] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23444, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22858", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22858", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22858/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22858/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22858/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22858")                        = 0
mkdir("./22859", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23445
./strace-static-x86_64: Process 23445 attached
[pid 23445] set_robust_list(0x55557a32b660, 24) = 0
[pid 23445] chdir("./22859")            = 0
[pid 23445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23445] setpgid(0, 0)               = 0
[pid 23445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23445] write(3, "1000", 4)         = 4
[pid 23445] close(3)                    = 0
[pid 23445] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23445] write(1, "executing program\n", 18executing program
) = 18
[pid 23445] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23445] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23445] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23445] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23445] exit_group(0)               = ?
[pid 23445] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23445, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22859", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22859", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22859/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22859/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22859/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22859")                        = 0
mkdir("./22860", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23446
./strace-static-x86_64: Process 23446 attached
[pid 23446] set_robust_list(0x55557a32b660, 24) = 0
[pid 23446] chdir("./22860")            = 0
[pid 23446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23446] setpgid(0, 0)               = 0
[pid 23446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23446] write(3, "1000", 4)         = 4
[pid 23446] close(3)                    = 0
[pid 23446] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23446] write(1, "executing program\n", 18executing program
) = 18
[pid 23446] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23446] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23446] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23446] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23446] exit_group(0)               = ?
[pid 23446] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23446, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22860", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22860", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22860/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22860/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22860/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22860")                        = 0
mkdir("./22861", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23447 attached
, child_tidptr=0x55557a32b650) = 23447
[pid 23447] set_robust_list(0x55557a32b660, 24) = 0
[pid 23447] chdir("./22861")            = 0
[pid 23447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23447] setpgid(0, 0)               = 0
[pid 23447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23447] write(3, "1000", 4)         = 4
[pid 23447] close(3executing program
)                    = 0
[pid 23447] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23447] write(1, "executing program\n", 18) = 18
[pid 23447] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23447] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23447] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23447] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23447] exit_group(0)               = ?
[pid 23447] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23447, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22861", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22861", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22861/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22861/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22861/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22861")                        = 0
mkdir("./22862", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23449 attached
, child_tidptr=0x55557a32b650) = 23449
[pid 23449] set_robust_list(0x55557a32b660, 24) = 0
[pid 23449] chdir("./22862")            = 0
[pid 23449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23449] setpgid(0, 0)               = 0
[pid 23449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23449] write(3, "1000", 4)         = 4
[pid 23449] close(3)                    = 0
[pid 23449] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23449] write(1, "executing program\n", 18executing program
) = 18
[pid 23449] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23449] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23449] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23449] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23449] exit_group(0)               = ?
[pid 23449] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23449, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22862", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22862", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22862/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22862/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22862/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22862")                        = 0
mkdir("./22863", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23450
./strace-static-x86_64: Process 23450 attached
[pid 23450] set_robust_list(0x55557a32b660, 24) = 0
[pid 23450] chdir("./22863")            = 0
[pid 23450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23450] setpgid(0, 0)               = 0
[pid 23450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23450] write(3, "1000", 4)         = 4
[pid 23450] close(3)                    = 0
[pid 23450] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23450] write(1, "executing program\n", 18executing program
) = 18
[pid 23450] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23450] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23450] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23450] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23450] exit_group(0)               = ?
[pid 23450] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23450, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22863", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22863", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22863/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22863/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22863/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22863")                        = 0
mkdir("./22864", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23451
./strace-static-x86_64: Process 23451 attached
[pid 23451] set_robust_list(0x55557a32b660, 24) = 0
[pid 23451] chdir("./22864")            = 0
[pid 23451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23451] setpgid(0, 0)               = 0
[pid 23451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23451] write(3, "1000", 4)         = 4
[pid 23451] close(3)                    = 0
[pid 23451] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23451] write(1, "executing program\n", 18) = 18
[pid 23451] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23451] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23451] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23451] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23451] exit_group(0)               = ?
[pid 23451] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23451, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22864", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22864", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22864/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22864/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22864/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22864")                        = 0
mkdir("./22865", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23452 attached
 <unfinished ...>
[pid 23452] set_robust_list(0x55557a32b660, 24) = 0
[pid 23452] chdir("./22865")            = 0
[pid 23452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23452] setpgid(0, 0)               = 0
[pid 23452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23452
[pid 23452] <... openat resumed>)       = 3
[pid 23452] write(3, "1000", 4)         = 4
[pid 23452] close(3)                    = 0
[pid 23452] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23452] write(1, "executing program\n", 18) = 18
[pid 23452] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23452] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23452] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23452] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23452] exit_group(0)               = ?
[pid 23452] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23452, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22865", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22865", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22865/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22865/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22865/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22865")                        = 0
mkdir("./22866", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23453 attached
, child_tidptr=0x55557a32b650) = 23453
[pid 23453] set_robust_list(0x55557a32b660, 24) = 0
[pid 23453] chdir("./22866")            = 0
[pid 23453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23453] setpgid(0, 0)               = 0
[pid 23453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23453] write(3, "1000", 4)         = 4
[pid 23453] close(3)                    = 0
[pid 23453] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23453] write(1, "executing program\n", 18executing program
) = 18
[pid 23453] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23453] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23453] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23453] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23453] exit_group(0)               = ?
[pid 23453] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23453, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22866", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22866", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22866/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22866/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22866/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22866")                        = 0
mkdir("./22867", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23454
./strace-static-x86_64: Process 23454 attached
[pid 23454] set_robust_list(0x55557a32b660, 24) = 0
[pid 23454] chdir("./22867")            = 0
[pid 23454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23454] setpgid(0, 0)               = 0
[pid 23454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23454] write(3, "1000", 4)         = 4
[pid 23454] close(3)                    = 0
[pid 23454] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23454] write(1, "executing program\n", 18executing program
) = 18
[pid 23454] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23454] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23454] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23454] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23454] exit_group(0)               = ?
[pid 23454] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23454, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22867", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22867", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22867/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22867/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22867/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22867")                        = 0
mkdir("./22868", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23455
./strace-static-x86_64: Process 23455 attached
[pid 23455] set_robust_list(0x55557a32b660, 24) = 0
[pid 23455] chdir("./22868")            = 0
[pid 23455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23455] setpgid(0, 0)               = 0
[pid 23455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23455] write(3, "1000", 4)         = 4
[pid 23455] close(3)                    = 0
[pid 23455] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23455] write(1, "executing program\n", 18) = 18
[pid 23455] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23455] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23455] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23455] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23455] exit_group(0)               = ?
[pid 23455] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23455, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22868", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22868", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22868/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22868/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22868/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22868")                        = 0
mkdir("./22869", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23456
./strace-static-x86_64: Process 23456 attached
[pid 23456] set_robust_list(0x55557a32b660, 24) = 0
[pid 23456] chdir("./22869")            = 0
[pid 23456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23456] setpgid(0, 0)               = 0
[pid 23456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23456] write(3, "1000", 4)         = 4
[pid 23456] close(3)                    = 0
[pid 23456] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23456] write(1, "executing program\n", 18executing program
) = 18
[pid 23456] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23456] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23456] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23456] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23456] exit_group(0)               = ?
[pid 23456] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23456, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22869", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22869", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22869/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22869/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22869/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22869")                        = 0
mkdir("./22870", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23457
./strace-static-x86_64: Process 23457 attached
[pid 23457] set_robust_list(0x55557a32b660, 24) = 0
[pid 23457] chdir("./22870")            = 0
[pid 23457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23457] setpgid(0, 0)               = 0
[pid 23457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23457] write(3, "1000", 4)         = 4
[pid 23457] close(3)                    = 0
[pid 23457] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23457] write(1, "executing program\n", 18executing program
) = 18
[pid 23457] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23457] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23457] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23457] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23457] exit_group(0)               = ?
[pid 23457] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23457, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22870", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22870", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22870/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22870/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22870/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22870")                        = 0
mkdir("./22871", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23458
./strace-static-x86_64: Process 23458 attached
[pid 23458] set_robust_list(0x55557a32b660, 24) = 0
[pid 23458] chdir("./22871")            = 0
[pid 23458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23458] setpgid(0, 0)               = 0
[pid 23458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23458] write(3, "1000", 4)         = 4
[pid 23458] close(3)                    = 0
[pid 23458] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23458] write(1, "executing program\n", 18executing program
) = 18
[pid 23458] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23458] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23458] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23458] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23458] exit_group(0)               = ?
[pid 23458] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23458, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22871", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22871", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22871/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22871/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22871/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22871")                        = 0
mkdir("./22872", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23459
./strace-static-x86_64: Process 23459 attached
[pid 23459] set_robust_list(0x55557a32b660, 24) = 0
[pid 23459] chdir("./22872")            = 0
[pid 23459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23459] setpgid(0, 0)               = 0
[pid 23459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23459] write(3, "1000", 4)         = 4
[pid 23459] close(3)                    = 0
[pid 23459] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23459] write(1, "executing program\n", 18executing program
) = 18
[pid 23459] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23459] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23459] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23459] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23459] exit_group(0)               = ?
[pid 23459] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23459, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22872", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22872", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22872/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22872/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22872/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22872")                        = 0
mkdir("./22873", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23460
./strace-static-x86_64: Process 23460 attached
[pid 23460] set_robust_list(0x55557a32b660, 24) = 0
[pid 23460] chdir("./22873")            = 0
[pid 23460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23460] setpgid(0, 0)               = 0
[pid 23460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23460] write(3, "1000", 4)         = 4
[pid 23460] close(3)                    = 0
[pid 23460] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23460] write(1, "executing program\n", 18executing program
) = 18
[pid 23460] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23460] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23460] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23460] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23460] exit_group(0)               = ?
[pid 23460] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23460, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22873", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22873", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22873/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22873/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22873/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22873")                        = 0
mkdir("./22874", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23461 attached
, child_tidptr=0x55557a32b650) = 23461
[pid 23461] set_robust_list(0x55557a32b660, 24) = 0
[pid 23461] chdir("./22874")            = 0
[pid 23461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23461] setpgid(0, 0)               = 0
[pid 23461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23461] write(3, "1000", 4)         = 4
[pid 23461] close(3)                    = 0
[pid 23461] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23461] write(1, "executing program\n", 18executing program
) = 18
[pid 23461] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23461] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23461] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23461] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23461] exit_group(0)               = ?
[pid 23461] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23461, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22874", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22874", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22874/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22874/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22874/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22874")                        = 0
mkdir("./22875", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23462
./strace-static-x86_64: Process 23462 attached
[pid 23462] set_robust_list(0x55557a32b660, 24) = 0
[pid 23462] chdir("./22875")            = 0
[pid 23462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23462] setpgid(0, 0)               = 0
[pid 23462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23462] write(3, "1000", 4)         = 4
[pid 23462] close(3)                    = 0
[pid 23462] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23462] write(1, "executing program\n", 18executing program
) = 18
[pid 23462] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23462] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23462] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23462] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23462] exit_group(0)               = ?
[pid 23462] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23462, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22875", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22875", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22875/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22875/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22875/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22875")                        = 0
mkdir("./22876", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23463
./strace-static-x86_64: Process 23463 attached
[pid 23463] set_robust_list(0x55557a32b660, 24) = 0
[pid 23463] chdir("./22876")            = 0
[pid 23463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23463] setpgid(0, 0)               = 0
[pid 23463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23463] write(3, "1000", 4)         = 4
[pid 23463] close(3)                    = 0
[pid 23463] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23463] write(1, "executing program\n", 18executing program
) = 18
[pid 23463] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23463] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23463] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23463] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23463] exit_group(0)               = ?
[pid 23463] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23463, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22876", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22876", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22876/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22876/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22876/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22876")                        = 0
mkdir("./22877", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23464
./strace-static-x86_64: Process 23464 attached
[pid 23464] set_robust_list(0x55557a32b660, 24) = 0
[pid 23464] chdir("./22877")            = 0
[pid 23464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23464] setpgid(0, 0)               = 0
[pid 23464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23464] write(3, "1000", 4)         = 4
[pid 23464] close(3)                    = 0
[pid 23464] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23464] write(1, "executing program\n", 18executing program
) = 18
[pid 23464] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23464] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23464] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23464] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23464] exit_group(0)               = ?
[pid 23464] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23464, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22877", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22877", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22877/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22877/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22877/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22877")                        = 0
mkdir("./22878", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23465
./strace-static-x86_64: Process 23465 attached
[pid 23465] set_robust_list(0x55557a32b660, 24) = 0
[pid 23465] chdir("./22878")            = 0
[pid 23465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23465] setpgid(0, 0)               = 0
[pid 23465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23465] write(3, "1000", 4)         = 4
[pid 23465] close(3)                    = 0
[pid 23465] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23465] write(1, "executing program\n", 18executing program
) = 18
[pid 23465] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23465] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23465] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23465] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23465] exit_group(0)               = ?
[pid 23465] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23465, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22878", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22878", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22878/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22878/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22878/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22878")                        = 0
mkdir("./22879", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23466
./strace-static-x86_64: Process 23466 attached
[pid 23466] set_robust_list(0x55557a32b660, 24) = 0
[pid 23466] chdir("./22879")            = 0
[pid 23466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23466] setpgid(0, 0)               = 0
[pid 23466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23466] write(3, "1000", 4)         = 4
[pid 23466] close(3)                    = 0
[pid 23466] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23466] write(1, "executing program\n", 18executing program
) = 18
[pid 23466] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23466] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23466] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23466] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23466] exit_group(0)               = ?
[pid 23466] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23466, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22879", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22879", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22879/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22879/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22879/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22879")                        = 0
mkdir("./22880", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23467
./strace-static-x86_64: Process 23467 attached
[pid 23467] set_robust_list(0x55557a32b660, 24) = 0
[pid 23467] chdir("./22880")            = 0
[pid 23467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23467] setpgid(0, 0)               = 0
[pid 23467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23467] write(3, "1000", 4)         = 4
[pid 23467] close(3)                    = 0
[pid 23467] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23467] write(1, "executing program\n", 18executing program
) = 18
[pid 23467] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23467] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23467] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23467] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23467] exit_group(0)               = ?
[pid 23467] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23467, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22880", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22880", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22880/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22880/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22880/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22880")                        = 0
mkdir("./22881", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23468
./strace-static-x86_64: Process 23468 attached
[pid 23468] set_robust_list(0x55557a32b660, 24) = 0
[pid 23468] chdir("./22881")            = 0
[pid 23468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23468] setpgid(0, 0)               = 0
[pid 23468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23468] write(3, "1000", 4)         = 4
[pid 23468] close(3)                    = 0
[pid 23468] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23468] write(1, "executing program\n", 18executing program
) = 18
[pid 23468] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23468] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23468] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23468] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23468] exit_group(0)               = ?
[pid 23468] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23468, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22881", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22881", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22881/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22881/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22881/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22881")                        = 0
mkdir("./22882", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23469
./strace-static-x86_64: Process 23469 attached
[pid 23469] set_robust_list(0x55557a32b660, 24) = 0
[pid 23469] chdir("./22882")            = 0
[pid 23469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23469] setpgid(0, 0)               = 0
[pid 23469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23469] write(3, "1000", 4)         = 4
[pid 23469] close(3)                    = 0
[pid 23469] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23469] write(1, "executing program\n", 18executing program
) = 18
[pid 23469] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23469] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23469] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23469] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23469] exit_group(0)               = ?
[pid 23469] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23469, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22882", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22882", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22882/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22882/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22882/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22882")                        = 0
mkdir("./22883", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23470 attached
, child_tidptr=0x55557a32b650) = 23470
[pid 23470] set_robust_list(0x55557a32b660, 24) = 0
[pid 23470] chdir("./22883")            = 0
[pid 23470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23470] setpgid(0, 0)               = 0
[pid 23470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23470] write(3, "1000", 4)         = 4
[pid 23470] close(3)                    = 0
[pid 23470] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23470] write(1, "executing program\n", 18executing program
) = 18
[pid 23470] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23470] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23470] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23470] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23470] exit_group(0)               = ?
[pid 23470] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23470, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22883", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22883", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22883/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22883/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22883/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22883")                        = 0
mkdir("./22884", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23471 attached
, child_tidptr=0x55557a32b650) = 23471
[pid 23471] set_robust_list(0x55557a32b660, 24) = 0
[pid 23471] chdir("./22884")            = 0
[pid 23471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23471] setpgid(0, 0)               = 0
[pid 23471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23471] write(3, "1000", 4)         = 4
[pid 23471] close(3)                    = 0
[pid 23471] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23471] write(1, "executing program\n", 18executing program
) = 18
[pid 23471] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23471] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23471] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23471] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23471] exit_group(0)               = ?
[pid 23471] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23471, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22884", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22884", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22884/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22884/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22884/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22884")                        = 0
mkdir("./22885", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23472 attached
, child_tidptr=0x55557a32b650) = 23472
[pid 23472] set_robust_list(0x55557a32b660, 24) = 0
[pid 23472] chdir("./22885")            = 0
[pid 23472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23472] setpgid(0, 0)               = 0
[pid 23472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23472] write(3, "1000", 4)         = 4
[pid 23472] close(3)                    = 0
[pid 23472] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23472] write(1, "executing program\n", 18executing program
) = 18
[pid 23472] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23472] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23472] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23472] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23472] exit_group(0)               = ?
[pid 23472] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23472, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22885", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22885", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22885/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22885/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22885/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22885")                        = 0
mkdir("./22886", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23473
./strace-static-x86_64: Process 23473 attached
[pid 23473] set_robust_list(0x55557a32b660, 24) = 0
[pid 23473] chdir("./22886")            = 0
[pid 23473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23473] setpgid(0, 0)               = 0
[pid 23473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23473] write(3, "1000", 4)         = 4
[pid 23473] close(3)                    = 0
[pid 23473] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23473] write(1, "executing program\n", 18executing program
) = 18
[pid 23473] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23473] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23473] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23473] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23473] exit_group(0)               = ?
[pid 23473] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23473, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22886", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22886", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22886/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22886/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22886/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22886")                        = 0
mkdir("./22887", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23474
./strace-static-x86_64: Process 23474 attached
[pid 23474] set_robust_list(0x55557a32b660, 24) = 0
[pid 23474] chdir("./22887")            = 0
[pid 23474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23474] setpgid(0, 0)               = 0
[pid 23474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23474] write(3, "1000", 4)         = 4
[pid 23474] close(3)                    = 0
[pid 23474] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23474] write(1, "executing program\n", 18executing program
) = 18
[pid 23474] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23474] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23474] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23474] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23474] exit_group(0)               = ?
[pid 23474] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23474, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22887", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22887", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22887/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22887/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22887/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22887")                        = 0
mkdir("./22888", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23475
./strace-static-x86_64: Process 23475 attached
[pid 23475] set_robust_list(0x55557a32b660, 24) = 0
[pid 23475] chdir("./22888")            = 0
[pid 23475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23475] setpgid(0, 0)               = 0
[pid 23475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23475] write(3, "1000", 4)         = 4
[pid 23475] close(3)                    = 0
[pid 23475] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23475] write(1, "executing program\n", 18) = 18
[pid 23475] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23475] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23475] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23475] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23475] exit_group(0)               = ?
[pid 23475] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23475, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22888", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22888", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22888/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22888/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22888/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22888")                        = 0
mkdir("./22889", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23476
./strace-static-x86_64: Process 23476 attached
[pid 23476] set_robust_list(0x55557a32b660, 24) = 0
[pid 23476] chdir("./22889")            = 0
[pid 23476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23476] setpgid(0, 0)               = 0
[pid 23476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23476] write(3, "1000", 4)         = 4
[pid 23476] close(3)                    = 0
[pid 23476] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23476] write(1, "executing program\n", 18executing program
) = 18
[pid 23476] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23476] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23476] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23476] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23476] exit_group(0)               = ?
[pid 23476] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23476, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22889", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22889", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22889/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22889/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22889/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22889")                        = 0
mkdir("./22890", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23477
./strace-static-x86_64: Process 23477 attached
[pid 23477] set_robust_list(0x55557a32b660, 24) = 0
[pid 23477] chdir("./22890")            = 0
[pid 23477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23477] setpgid(0, 0)               = 0
[pid 23477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23477] write(3, "1000", 4)         = 4
[pid 23477] close(3)                    = 0
[pid 23477] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23477] write(1, "executing program\n", 18executing program
) = 18
[pid 23477] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23477] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23477] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23477] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23477] exit_group(0)               = ?
[pid 23477] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23477, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22890", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22890", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22890/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22890/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22890/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22890")                        = 0
mkdir("./22891", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23478
./strace-static-x86_64: Process 23478 attached
[pid 23478] set_robust_list(0x55557a32b660, 24) = 0
[pid 23478] chdir("./22891")            = 0
[pid 23478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23478] setpgid(0, 0)               = 0
[pid 23478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23478] write(3, "1000", 4)         = 4
[pid 23478] close(3)                    = 0
[pid 23478] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23478] write(1, "executing program\n", 18executing program
) = 18
[pid 23478] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23478] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23478] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23478] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23478] exit_group(0)               = ?
[pid 23478] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23478, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22891", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22891", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22891/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22891/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22891/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22891")                        = 0
mkdir("./22892", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23479
./strace-static-x86_64: Process 23479 attached
[pid 23479] set_robust_list(0x55557a32b660, 24) = 0
[pid 23479] chdir("./22892")            = 0
[pid 23479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23479] setpgid(0, 0)               = 0
[pid 23479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23479] write(3, "1000", 4)         = 4
[pid 23479] close(3)                    = 0
[pid 23479] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23479] write(1, "executing program\n", 18executing program
) = 18
[pid 23479] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23479] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23479] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23479] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23479] exit_group(0)               = ?
[pid 23479] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23479, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22892", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22892", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22892/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22892/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22892/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22892")                        = 0
mkdir("./22893", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23480
./strace-static-x86_64: Process 23480 attached
[pid 23480] set_robust_list(0x55557a32b660, 24) = 0
[pid 23480] chdir("./22893")            = 0
[pid 23480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23480] setpgid(0, 0)               = 0
[pid 23480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23480] write(3, "1000", 4)         = 4
[pid 23480] close(3)                    = 0
[pid 23480] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23480] write(1, "executing program\n", 18executing program
) = 18
[pid 23480] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23480] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23480] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23480] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23480] exit_group(0)               = ?
[pid 23480] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23480, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22893", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22893", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22893/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22893/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22893/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22893")                        = 0
mkdir("./22894", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23481
./strace-static-x86_64: Process 23481 attached
[pid 23481] set_robust_list(0x55557a32b660, 24) = 0
[pid 23481] chdir("./22894")            = 0
[pid 23481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23481] setpgid(0, 0)               = 0
[pid 23481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23481] write(3, "1000", 4)         = 4
[pid 23481] close(3)                    = 0
[pid 23481] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23481] write(1, "executing program\n", 18) = 18
[pid 23481] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23481] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23481] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23481] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23481] exit_group(0)               = ?
[pid 23481] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23481, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22894", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22894", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22894/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22894/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22894/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22894")                        = 0
mkdir("./22895", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23482
./strace-static-x86_64: Process 23482 attached
[pid 23482] set_robust_list(0x55557a32b660, 24) = 0
[pid 23482] chdir("./22895")            = 0
[pid 23482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23482] setpgid(0, 0)               = 0
[pid 23482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23482] write(3, "1000", 4)         = 4
[pid 23482] close(3)                    = 0
[pid 23482] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23482] write(1, "executing program\n", 18executing program
) = 18
[pid 23482] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23482] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23482] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23482] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23482] exit_group(0)               = ?
[pid 23482] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23482, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22895", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22895", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22895/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22895/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22895/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22895")                        = 0
mkdir("./22896", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23483
./strace-static-x86_64: Process 23483 attached
[pid 23483] set_robust_list(0x55557a32b660, 24) = 0
[pid 23483] chdir("./22896")            = 0
[pid 23483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23483] setpgid(0, 0)               = 0
[pid 23483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23483] write(3, "1000", 4)         = 4
[pid 23483] close(3)                    = 0
[pid 23483] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23483] write(1, "executing program\n", 18) = 18
[pid 23483] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23483] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23483] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23483] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23483] exit_group(0)               = ?
[pid 23483] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23483, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22896", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22896", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22896/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22896/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22896/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22896")                        = 0
mkdir("./22897", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23484
./strace-static-x86_64: Process 23484 attached
[pid 23484] set_robust_list(0x55557a32b660, 24) = 0
[pid 23484] chdir("./22897")            = 0
[pid 23484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23484] setpgid(0, 0)               = 0
[pid 23484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23484] write(3, "1000", 4)         = 4
[pid 23484] close(3)                    = 0
[pid 23484] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23484] write(1, "executing program\n", 18executing program
) = 18
[pid 23484] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23484] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23484] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23484] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23484] exit_group(0)               = ?
[pid 23484] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23484, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22897", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22897", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22897/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22897/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22897/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22897")                        = 0
mkdir("./22898", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23485
./strace-static-x86_64: Process 23485 attached
[pid 23485] set_robust_list(0x55557a32b660, 24) = 0
[pid 23485] chdir("./22898")            = 0
[pid 23485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23485] setpgid(0, 0)               = 0
[pid 23485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23485] write(3, "1000", 4)         = 4
[pid 23485] close(3)                    = 0
[pid 23485] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23485] write(1, "executing program\n", 18executing program
) = 18
[pid 23485] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23485] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23485] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23485] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23485] exit_group(0)               = ?
[pid 23485] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23485, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22898", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22898", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22898/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22898/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22898/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22898")                        = 0
mkdir("./22899", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23486 attached
, child_tidptr=0x55557a32b650) = 23486
[pid 23486] set_robust_list(0x55557a32b660, 24) = 0
[pid 23486] chdir("./22899")            = 0
[pid 23486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23486] setpgid(0, 0)               = 0
[pid 23486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23486] write(3, "1000", 4)         = 4
[pid 23486] close(3)                    = 0
[pid 23486] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23486] write(1, "executing program\n", 18) = 18
[pid 23486] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23486] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23486] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23486] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23486] exit_group(0)               = ?
[pid 23486] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23486, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22899", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22899", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22899/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22899/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22899/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22899")                        = 0
mkdir("./22900", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23487
./strace-static-x86_64: Process 23487 attached
[pid 23487] set_robust_list(0x55557a32b660, 24) = 0
[pid 23487] chdir("./22900")            = 0
[pid 23487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23487] setpgid(0, 0)               = 0
[pid 23487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23487] write(3, "1000", 4)         = 4
[pid 23487] close(3)                    = 0
[pid 23487] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23487] write(1, "executing program\n", 18executing program
) = 18
[pid 23487] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23487] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23487] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23487] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23487] exit_group(0)               = ?
[pid 23487] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23487, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22900", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22900", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22900/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22900/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22900/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22900")                        = 0
mkdir("./22901", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23488 attached
, child_tidptr=0x55557a32b650) = 23488
[pid 23488] set_robust_list(0x55557a32b660, 24) = 0
[pid 23488] chdir("./22901")            = 0
[pid 23488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23488] setpgid(0, 0)               = 0
[pid 23488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23488] write(3, "1000", 4)         = 4
[pid 23488] close(3)                    = 0
[pid 23488] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23488] write(1, "executing program\n", 18executing program
) = 18
[pid 23488] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23488] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23488] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23488] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23488] exit_group(0)               = ?
[pid 23488] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23488, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22901", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22901", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22901/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22901/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22901/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22901")                        = 0
mkdir("./22902", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23489
./strace-static-x86_64: Process 23489 attached
[pid 23489] set_robust_list(0x55557a32b660, 24) = 0
[pid 23489] chdir("./22902")            = 0
[pid 23489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23489] setpgid(0, 0)               = 0
[pid 23489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23489] write(3, "1000", 4)         = 4
[pid 23489] close(3)                    = 0
[pid 23489] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23489] write(1, "executing program\n", 18executing program
) = 18
[pid 23489] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23489] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23489] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23489] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23489] exit_group(0)               = ?
[pid 23489] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23489, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22902", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22902", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22902/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22902/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22902/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22902")                        = 0
mkdir("./22903", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23490 attached
, child_tidptr=0x55557a32b650) = 23490
[pid 23490] set_robust_list(0x55557a32b660, 24) = 0
[pid 23490] chdir("./22903")            = 0
[pid 23490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23490] setpgid(0, 0)               = 0
[pid 23490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23490] write(3, "1000", 4)         = 4
[pid 23490] close(3)                    = 0
[pid 23490] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23490] write(1, "executing program\n", 18executing program
) = 18
[pid 23490] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23490] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23490] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23490] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23490] exit_group(0)               = ?
[pid 23490] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23490, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22903", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22903", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22903/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22903/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22903/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22903")                        = 0
mkdir("./22904", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23491 attached
, child_tidptr=0x55557a32b650) = 23491
[pid 23491] set_robust_list(0x55557a32b660, 24) = 0
[pid 23491] chdir("./22904")            = 0
[pid 23491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23491] setpgid(0, 0)               = 0
[pid 23491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23491] write(3, "1000", 4)         = 4
[pid 23491] close(3)                    = 0
[pid 23491] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23491] write(1, "executing program\n", 18) = 18
[pid 23491] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23491] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23491] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23491] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23491] exit_group(0)               = ?
[pid 23491] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23491, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22904", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22904", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22904/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22904/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22904/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22904")                        = 0
mkdir("./22905", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23492
./strace-static-x86_64: Process 23492 attached
[pid 23492] set_robust_list(0x55557a32b660, 24) = 0
[pid 23492] chdir("./22905")            = 0
[pid 23492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23492] setpgid(0, 0)               = 0
[pid 23492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23492] write(3, "1000", 4)         = 4
[pid 23492] close(3)                    = 0
[pid 23492] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23492] write(1, "executing program\n", 18executing program
) = 18
[pid 23492] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23492] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23492] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23492] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23492] exit_group(0)               = ?
[pid 23492] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23492, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22905", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22905", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22905/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22905/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22905/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22905")                        = 0
mkdir("./22906", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23493 attached
, child_tidptr=0x55557a32b650) = 23493
[pid 23493] set_robust_list(0x55557a32b660, 24) = 0
[pid 23493] chdir("./22906")            = 0
[pid 23493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23493] setpgid(0, 0)               = 0
[pid 23493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23493] write(3, "1000", 4)         = 4
[pid 23493] close(3)                    = 0
[pid 23493] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23493] write(1, "executing program\n", 18executing program
) = 18
[pid 23493] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23493] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23493] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23493] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23493] exit_group(0)               = ?
[pid 23493] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23493, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22906", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22906", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22906/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22906/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22906/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22906")                        = 0
mkdir("./22907", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23494 attached
, child_tidptr=0x55557a32b650) = 23494
[pid 23494] set_robust_list(0x55557a32b660, 24) = 0
[pid 23494] chdir("./22907")            = 0
[pid 23494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23494] setpgid(0, 0)               = 0
[pid 23494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23494] write(3, "1000", 4)         = 4
[pid 23494] close(3)                    = 0
[pid 23494] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23494] write(1, "executing program\n", 18executing program
) = 18
[pid 23494] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23494] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23494] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23494] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23494] exit_group(0)               = ?
[pid 23494] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23494, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22907", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22907", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22907/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22907/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22907/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22907")                        = 0
mkdir("./22908", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23495
./strace-static-x86_64: Process 23495 attached
[pid 23495] set_robust_list(0x55557a32b660, 24) = 0
[pid 23495] chdir("./22908")            = 0
[pid 23495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23495] setpgid(0, 0)               = 0
[pid 23495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23495] write(3, "1000", 4)         = 4
[pid 23495] close(3)                    = 0
[pid 23495] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23495] write(1, "executing program\n", 18executing program
) = 18
[pid 23495] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23495] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23495] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23495] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23495] exit_group(0)               = ?
[pid 23495] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23495, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22908", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22908", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22908/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22908/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22908/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22908")                        = 0
mkdir("./22909", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23496
./strace-static-x86_64: Process 23496 attached
[pid 23496] set_robust_list(0x55557a32b660, 24) = 0
[pid 23496] chdir("./22909")            = 0
[pid 23496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23496] setpgid(0, 0)               = 0
[pid 23496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23496] write(3, "1000", 4)         = 4
[pid 23496] close(3)                    = 0
[pid 23496] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23496] write(1, "executing program\n", 18executing program
) = 18
[pid 23496] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23496] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23496] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23496] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23496] exit_group(0)               = ?
[pid 23496] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23496, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22909", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22909", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22909/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22909/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22909/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22909")                        = 0
mkdir("./22910", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23497
./strace-static-x86_64: Process 23497 attached
[pid 23497] set_robust_list(0x55557a32b660, 24) = 0
[pid 23497] chdir("./22910")            = 0
[pid 23497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23497] setpgid(0, 0)               = 0
[pid 23497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23497] write(3, "1000", 4)         = 4
[pid 23497] close(3)                    = 0
[pid 23497] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23497] write(1, "executing program\n", 18executing program
) = 18
[pid 23497] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23497] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23497] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23497] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23497] exit_group(0)               = ?
[pid 23497] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23497, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22910", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22910", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22910/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22910/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22910/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22910")                        = 0
mkdir("./22911", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23498
./strace-static-x86_64: Process 23498 attached
[pid 23498] set_robust_list(0x55557a32b660, 24) = 0
[pid 23498] chdir("./22911")            = 0
[pid 23498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23498] setpgid(0, 0)               = 0
[pid 23498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23498] write(3, "1000", 4)         = 4
[pid 23498] close(3)                    = 0
[pid 23498] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23498] write(1, "executing program\n", 18executing program
) = 18
[pid 23498] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23498] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23498] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23498] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23498] exit_group(0)               = ?
[pid 23498] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23498, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22911", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22911", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22911/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22911/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22911/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22911")                        = 0
mkdir("./22912", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23499
./strace-static-x86_64: Process 23499 attached
[pid 23499] set_robust_list(0x55557a32b660, 24) = 0
[pid 23499] chdir("./22912")            = 0
[pid 23499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23499] setpgid(0, 0)               = 0
[pid 23499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23499] write(3, "1000", 4)         = 4
[pid 23499] close(3)                    = 0
[pid 23499] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23499] write(1, "executing program\n", 18executing program
) = 18
[pid 23499] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23499] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23499] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23499] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23499] exit_group(0)               = ?
[pid 23499] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23499, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22912", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22912", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22912/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22912/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22912/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22912")                        = 0
mkdir("./22913", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23500
./strace-static-x86_64: Process 23500 attached
[pid 23500] set_robust_list(0x55557a32b660, 24) = 0
[pid 23500] chdir("./22913")            = 0
[pid 23500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23500] setpgid(0, 0)               = 0
[pid 23500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23500] write(3, "1000", 4)         = 4
[pid 23500] close(3)                    = 0
[pid 23500] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23500] write(1, "executing program\n", 18) = 18
[pid 23500] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23500] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23500] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23500] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23500] exit_group(0)               = ?
[pid 23500] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23500, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22913", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22913", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22913/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22913/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22913/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22913")                        = 0
mkdir("./22914", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23501
./strace-static-x86_64: Process 23501 attached
[pid 23501] set_robust_list(0x55557a32b660, 24) = 0
[pid 23501] chdir("./22914")            = 0
[pid 23501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23501] setpgid(0, 0)               = 0
[pid 23501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23501] write(3, "1000", 4)         = 4
[pid 23501] close(3)                    = 0
[pid 23501] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23501] write(1, "executing program\n", 18executing program
) = 18
[pid 23501] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23501] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23501] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23501] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23501] exit_group(0)               = ?
[pid 23501] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23501, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22914", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22914", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22914/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22914/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22914/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22914")                        = 0
mkdir("./22915", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23502
./strace-static-x86_64: Process 23502 attached
[pid 23502] set_robust_list(0x55557a32b660, 24) = 0
[pid 23502] chdir("./22915")            = 0
[pid 23502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23502] setpgid(0, 0)               = 0
[pid 23502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23502] write(3, "1000", 4)         = 4
[pid 23502] close(3)                    = 0
[pid 23502] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23502] write(1, "executing program\n", 18executing program
) = 18
[pid 23502] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23502] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23502] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23502] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23502] exit_group(0)               = ?
[pid 23502] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23502, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22915", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22915", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22915/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22915/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22915/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22915")                        = 0
mkdir("./22916", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23503
./strace-static-x86_64: Process 23503 attached
[pid 23503] set_robust_list(0x55557a32b660, 24) = 0
[pid 23503] chdir("./22916")            = 0
[pid 23503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23503] setpgid(0, 0)               = 0
[pid 23503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23503] write(3, "1000", 4)         = 4
[pid 23503] close(3)                    = 0
[pid 23503] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23503] write(1, "executing program\n", 18executing program
) = 18
[pid 23503] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23503] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23503] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23503] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23503] exit_group(0)               = ?
[pid 23503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23503, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22916", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22916", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22916/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22916/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22916/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22916")                        = 0
mkdir("./22917", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23504
./strace-static-x86_64: Process 23504 attached
[pid 23504] set_robust_list(0x55557a32b660, 24) = 0
[pid 23504] chdir("./22917")            = 0
[pid 23504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23504] setpgid(0, 0)               = 0
[pid 23504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23504] write(3, "1000", 4)         = 4
[pid 23504] close(3)                    = 0
[pid 23504] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23504] write(1, "executing program\n", 18executing program
) = 18
[pid 23504] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23504] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23504] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23504] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23504] exit_group(0)               = ?
[pid 23504] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23504, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22917", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22917", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22917/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22917/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22917/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22917")                        = 0
mkdir("./22918", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23505 attached
, child_tidptr=0x55557a32b650) = 23505
[pid 23505] set_robust_list(0x55557a32b660, 24) = 0
[pid 23505] chdir("./22918")            = 0
[pid 23505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23505] setpgid(0, 0)               = 0
[pid 23505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23505] write(3, "1000", 4)         = 4
[pid 23505] close(3)                    = 0
[pid 23505] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23505] write(1, "executing program\n", 18executing program
) = 18
[pid 23505] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23505] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23505] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23505] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23505] exit_group(0)               = ?
[pid 23505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23505, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22918", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22918", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22918/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22918/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22918/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22918")                        = 0
mkdir("./22919", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23506 attached
, child_tidptr=0x55557a32b650) = 23506
[pid 23506] set_robust_list(0x55557a32b660, 24) = 0
[pid 23506] chdir("./22919")            = 0
[pid 23506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23506] setpgid(0, 0)               = 0
[pid 23506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23506] write(3, "1000", 4)         = 4
[pid 23506] close(3)                    = 0
[pid 23506] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23506] write(1, "executing program\n", 18executing program
) = 18
[pid 23506] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23506] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23506] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23506] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23506] exit_group(0)               = ?
[pid 23506] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23506, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22919", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22919", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22919/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22919/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22919/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22919")                        = 0
mkdir("./22920", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23507
./strace-static-x86_64: Process 23507 attached
[pid 23507] set_robust_list(0x55557a32b660, 24) = 0
[pid 23507] chdir("./22920")            = 0
[pid 23507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23507] setpgid(0, 0)               = 0
[pid 23507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23507] write(3, "1000", 4)         = 4
[pid 23507] close(3)                    = 0
[pid 23507] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23507] write(1, "executing program\n", 18executing program
) = 18
[pid 23507] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23507] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23507] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23507] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23507] exit_group(0)               = ?
[pid 23507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23507, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22920", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22920", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22920/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22920/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22920/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22920")                        = 0
mkdir("./22921", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23508 attached
, child_tidptr=0x55557a32b650) = 23508
[pid 23508] set_robust_list(0x55557a32b660, 24) = 0
[pid 23508] chdir("./22921")            = 0
[pid 23508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23508] setpgid(0, 0)               = 0
[pid 23508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23508] write(3, "1000", 4)         = 4
[pid 23508] close(3)                    = 0
[pid 23508] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23508] write(1, "executing program\n", 18executing program
) = 18
[pid 23508] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23508] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23508] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23508] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23508] exit_group(0)               = ?
[pid 23508] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23508, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22921", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22921", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22921/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22921/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22921/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22921")                        = 0
mkdir("./22922", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23509 attached
, child_tidptr=0x55557a32b650) = 23509
[pid 23509] set_robust_list(0x55557a32b660, 24) = 0
[pid 23509] chdir("./22922")            = 0
[pid 23509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23509] setpgid(0, 0)               = 0
[pid 23509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23509] write(3, "1000", 4)         = 4
[pid 23509] close(3)                    = 0
[pid 23509] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23509] write(1, "executing program\n", 18executing program
) = 18
[pid 23509] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23509] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23509] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23509] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23509] exit_group(0)               = ?
[pid 23509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23509, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22922", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22922", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22922/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22922/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22922/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22922")                        = 0
mkdir("./22923", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23510 attached
, child_tidptr=0x55557a32b650) = 23510
[pid 23510] set_robust_list(0x55557a32b660, 24) = 0
[pid 23510] chdir("./22923")            = 0
[pid 23510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23510] setpgid(0, 0)               = 0
[pid 23510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23510] write(3, "1000", 4)         = 4
[pid 23510] close(3)                    = 0
[pid 23510] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23510] write(1, "executing program\n", 18) = 18
[pid 23510] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23510] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23510] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23510] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23510] exit_group(0)               = ?
[pid 23510] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23510, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22923", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22923", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22923/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22923/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22923/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22923")                        = 0
mkdir("./22924", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23511
./strace-static-x86_64: Process 23511 attached
[pid 23511] set_robust_list(0x55557a32b660, 24) = 0
[pid 23511] chdir("./22924")            = 0
[pid 23511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23511] setpgid(0, 0)               = 0
[pid 23511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23511] write(3, "1000", 4)         = 4
[pid 23511] close(3)                    = 0
[pid 23511] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23511] write(1, "executing program\n", 18executing program
) = 18
[pid 23511] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23511] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23511] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23511] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23511] exit_group(0)               = ?
[pid 23511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23511, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22924", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22924", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22924/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22924/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22924/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22924")                        = 0
mkdir("./22925", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23512 attached
, child_tidptr=0x55557a32b650) = 23512
[pid 23512] set_robust_list(0x55557a32b660, 24) = 0
[pid 23512] chdir("./22925")            = 0
[pid 23512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23512] setpgid(0, 0)               = 0
[pid 23512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23512] write(3, "1000", 4)         = 4
[pid 23512] close(3)                    = 0
[pid 23512] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23512] write(1, "executing program\n", 18) = 18
[pid 23512] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23512] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23512] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23512] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23512] exit_group(0)               = ?
[pid 23512] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23512, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22925", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22925", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22925/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22925/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22925/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22925")                        = 0
mkdir("./22926", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23513
./strace-static-x86_64: Process 23513 attached
[pid 23513] set_robust_list(0x55557a32b660, 24) = 0
[pid 23513] chdir("./22926")            = 0
[pid 23513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23513] setpgid(0, 0)               = 0
[pid 23513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23513] write(3, "1000", 4)         = 4
[pid 23513] close(3)                    = 0
[pid 23513] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23513] write(1, "executing program\n", 18) = 18
[pid 23513] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23513] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23513] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23513] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23513] exit_group(0)               = ?
[pid 23513] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23513, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22926", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22926", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22926/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22926/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22926/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22926")                        = 0
mkdir("./22927", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23514 attached
, child_tidptr=0x55557a32b650) = 23514
[pid 23514] set_robust_list(0x55557a32b660, 24) = 0
[pid 23514] chdir("./22927")            = 0
[pid 23514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23514] setpgid(0, 0)               = 0
[pid 23514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23514] write(3, "1000", 4)         = 4
[pid 23514] close(3)                    = 0
[pid 23514] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23514] write(1, "executing program\n", 18executing program
) = 18
[pid 23514] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23514] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23514] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23514] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23514] exit_group(0)               = ?
[pid 23514] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23514, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22927", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22927", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22927/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22927/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22927/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22927")                        = 0
mkdir("./22928", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23515
./strace-static-x86_64: Process 23515 attached
[pid 23515] set_robust_list(0x55557a32b660, 24) = 0
[pid 23515] chdir("./22928")            = 0
[pid 23515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23515] setpgid(0, 0)               = 0
[pid 23515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23515] write(3, "1000", 4)         = 4
[pid 23515] close(3)                    = 0
[pid 23515] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23515] write(1, "executing program\n", 18executing program
) = 18
[pid 23515] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23515] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23515] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23515] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23515] exit_group(0)               = ?
[pid 23515] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23515, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22928", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22928", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22928/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22928/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22928/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22928")                        = 0
mkdir("./22929", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23516 attached
, child_tidptr=0x55557a32b650) = 23516
[pid 23516] set_robust_list(0x55557a32b660, 24) = 0
[pid 23516] chdir("./22929")            = 0
[pid 23516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23516] setpgid(0, 0)               = 0
[pid 23516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23516] write(3, "1000", 4)         = 4
[pid 23516] close(3)                    = 0
[pid 23516] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23516] write(1, "executing program\n", 18executing program
) = 18
[pid 23516] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23516] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23516] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23516] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23516] exit_group(0)               = ?
[pid 23516] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23516, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22929", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22929", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22929/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22929/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22929/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22929")                        = 0
mkdir("./22930", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23517
./strace-static-x86_64: Process 23517 attached
[pid 23517] set_robust_list(0x55557a32b660, 24) = 0
[pid 23517] chdir("./22930")            = 0
[pid 23517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23517] setpgid(0, 0)               = 0
[pid 23517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23517] write(3, "1000", 4)         = 4
[pid 23517] close(3)                    = 0
[pid 23517] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23517] write(1, "executing program\n", 18executing program
) = 18
[pid 23517] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23517] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23517] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23517] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23517] exit_group(0)               = ?
[pid 23517] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23517, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22930", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22930", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22930/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22930/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22930/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22930")                        = 0
mkdir("./22931", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23518
./strace-static-x86_64: Process 23518 attached
[pid 23518] set_robust_list(0x55557a32b660, 24) = 0
[pid 23518] chdir("./22931")            = 0
[pid 23518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23518] setpgid(0, 0)               = 0
[pid 23518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23518] write(3, "1000", 4)         = 4
[pid 23518] close(3)                    = 0
[pid 23518] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23518] write(1, "executing program\n", 18) = 18
[pid 23518] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23518] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23518] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23518] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23518] exit_group(0)               = ?
[pid 23518] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23518, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22931", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22931", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22931/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22931/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22931/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22931")                        = 0
mkdir("./22932", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23519 attached
, child_tidptr=0x55557a32b650) = 23519
[pid 23519] set_robust_list(0x55557a32b660, 24) = 0
[pid 23519] chdir("./22932")            = 0
[pid 23519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23519] setpgid(0, 0)               = 0
[pid 23519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23519] write(3, "1000", 4)         = 4
[pid 23519] close(3)                    = 0
[pid 23519] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23519] write(1, "executing program\n", 18executing program
) = 18
[pid 23519] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23519] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23519] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23519] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23519] exit_group(0)               = ?
[pid 23519] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23519, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22932", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22932", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22932/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22932/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22932/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22932")                        = 0
mkdir("./22933", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23520
./strace-static-x86_64: Process 23520 attached
[pid 23520] set_robust_list(0x55557a32b660, 24) = 0
[pid 23520] chdir("./22933")            = 0
[pid 23520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23520] setpgid(0, 0)               = 0
[pid 23520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23520] write(3, "1000", 4)         = 4
[pid 23520] close(3)                    = 0
[pid 23520] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23520] write(1, "executing program\n", 18executing program
) = 18
[pid 23520] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23520] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23520] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23520] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23520] exit_group(0)               = ?
[pid 23520] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23520, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22933", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22933", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22933/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22933/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22933/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22933")                        = 0
mkdir("./22934", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23521 attached
, child_tidptr=0x55557a32b650) = 23521
[pid 23521] set_robust_list(0x55557a32b660, 24) = 0
[pid 23521] chdir("./22934")            = 0
[pid 23521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23521] setpgid(0, 0)               = 0
[pid 23521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23521] write(3, "1000", 4)         = 4
[pid 23521] close(3)                    = 0
[pid 23521] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23521] write(1, "executing program\n", 18executing program
) = 18
[pid 23521] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23521] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23521] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23521] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23521] exit_group(0)               = ?
[pid 23521] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23521, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22934", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22934", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22934/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22934/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22934/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22934")                        = 0
mkdir("./22935", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23522
./strace-static-x86_64: Process 23522 attached
[pid 23522] set_robust_list(0x55557a32b660, 24) = 0
[pid 23522] chdir("./22935")            = 0
[pid 23522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23522] setpgid(0, 0)               = 0
[pid 23522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23522] write(3, "1000", 4)         = 4
[pid 23522] close(3)                    = 0
[pid 23522] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23522] write(1, "executing program\n", 18executing program
) = 18
[pid 23522] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23522] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23522] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23522] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23522] exit_group(0)               = ?
[pid 23522] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23522, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22935", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22935", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22935/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22935/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22935/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22935")                        = 0
mkdir("./22936", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23523 attached
, child_tidptr=0x55557a32b650) = 23523
[pid 23523] set_robust_list(0x55557a32b660, 24) = 0
[pid 23523] chdir("./22936")            = 0
[pid 23523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23523] setpgid(0, 0)               = 0
[pid 23523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23523] write(3, "1000", 4)         = 4
[pid 23523] close(3)                    = 0
[pid 23523] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23523] write(1, "executing program\n", 18executing program
) = 18
[pid 23523] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23523] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23523] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23523] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23523] exit_group(0)               = ?
[pid 23523] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23523, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22936", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22936", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22936/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22936/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22936/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22936")                        = 0
mkdir("./22937", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23524 attached
, child_tidptr=0x55557a32b650) = 23524
[pid 23524] set_robust_list(0x55557a32b660, 24) = 0
[pid 23524] chdir("./22937")            = 0
[pid 23524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23524] setpgid(0, 0)               = 0
[pid 23524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23524] write(3, "1000", 4)         = 4
[pid 23524] close(3)                    = 0
[pid 23524] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23524] write(1, "executing program\n", 18executing program
) = 18
[pid 23524] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23524] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23524] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23524] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23524] exit_group(0)               = ?
[pid 23524] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23524, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22937", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22937", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22937/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22937/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22937/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22937")                        = 0
mkdir("./22938", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23526 attached
, child_tidptr=0x55557a32b650) = 23526
[pid 23526] set_robust_list(0x55557a32b660, 24) = 0
[pid 23526] chdir("./22938")            = 0
[pid 23526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23526] setpgid(0, 0)               = 0
[pid 23526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23526] write(3, "1000", 4)         = 4
[pid 23526] close(3)                    = 0
[pid 23526] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23526] write(1, "executing program\n", 18executing program
) = 18
[pid 23526] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23526] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23526] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23526] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23526] exit_group(0)               = ?
[pid 23526] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23526, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22938", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22938", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22938/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22938/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22938/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22938")                        = 0
mkdir("./22939", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23527
./strace-static-x86_64: Process 23527 attached
[pid 23527] set_robust_list(0x55557a32b660, 24) = 0
[pid 23527] chdir("./22939")            = 0
[pid 23527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23527] setpgid(0, 0)               = 0
[pid 23527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23527] write(3, "1000", 4)         = 4
[pid 23527] close(3)                    = 0
[pid 23527] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23527] write(1, "executing program\n", 18executing program
) = 18
[pid 23527] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23527] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23527] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23527] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23527] exit_group(0)               = ?
[pid 23527] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23527, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22939", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22939", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22939/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22939/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22939/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22939")                        = 0
mkdir("./22940", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23528 attached
, child_tidptr=0x55557a32b650) = 23528
[pid 23528] set_robust_list(0x55557a32b660, 24) = 0
[pid 23528] chdir("./22940")            = 0
[pid 23528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23528] setpgid(0, 0)               = 0
[pid 23528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23528] write(3, "1000", 4)         = 4
[pid 23528] close(3)                    = 0
[pid 23528] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23528] write(1, "executing program\n", 18executing program
) = 18
[pid 23528] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23528] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23528] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23528] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23528] exit_group(0)               = ?
[pid 23528] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23528, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22940", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22940", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22940/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22940/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22940/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22940")                        = 0
mkdir("./22941", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23529
./strace-static-x86_64: Process 23529 attached
[pid 23529] set_robust_list(0x55557a32b660, 24) = 0
[pid 23529] chdir("./22941")            = 0
[pid 23529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23529] setpgid(0, 0)               = 0
[pid 23529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23529] write(3, "1000", 4)         = 4
[pid 23529] close(3)                    = 0
[pid 23529] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23529] write(1, "executing program\n", 18) = 18
[pid 23529] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23529] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23529] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23529] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23529] exit_group(0)               = ?
[pid 23529] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23529, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22941", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22941", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22941/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22941/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22941/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22941")                        = 0
mkdir("./22942", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23530 attached
, child_tidptr=0x55557a32b650) = 23530
[pid 23530] set_robust_list(0x55557a32b660, 24) = 0
[pid 23530] chdir("./22942")            = 0
[pid 23530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23530] setpgid(0, 0)               = 0
[pid 23530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23530] write(3, "1000", 4)         = 4
[pid 23530] close(3)                    = 0
[pid 23530] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23530] write(1, "executing program\n", 18executing program
) = 18
[pid 23530] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23530] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23530] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23530] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23530] exit_group(0)               = ?
[pid 23530] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23530, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22942", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22942", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22942/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22942/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22942/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22942")                        = 0
mkdir("./22943", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23531
./strace-static-x86_64: Process 23531 attached
[pid 23531] set_robust_list(0x55557a32b660, 24) = 0
[pid 23531] chdir("./22943")            = 0
[pid 23531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23531] setpgid(0, 0)               = 0
[pid 23531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23531] write(3, "1000", 4)         = 4
[pid 23531] close(3)                    = 0
[pid 23531] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23531] write(1, "executing program\n", 18executing program
) = 18
[pid 23531] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23531] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23531] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23531] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23531] exit_group(0)               = ?
[pid 23531] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23531, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22943", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22943", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22943/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22943/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22943/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22943")                        = 0
mkdir("./22944", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23532
./strace-static-x86_64: Process 23532 attached
[pid 23532] set_robust_list(0x55557a32b660, 24) = 0
[pid 23532] chdir("./22944")            = 0
[pid 23532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23532] setpgid(0, 0)               = 0
[pid 23532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23532] write(3, "1000", 4)         = 4
[pid 23532] close(3)                    = 0
[pid 23532] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23532] write(1, "executing program\n", 18) = 18
[pid 23532] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23532] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23532] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23532] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23532] exit_group(0)               = ?
[pid 23532] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23532, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22944", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22944", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22944/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22944/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22944/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22944")                        = 0
mkdir("./22945", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23533 attached
 <unfinished ...>
[pid 23533] set_robust_list(0x55557a32b660, 24) = 0
[pid 23533] chdir("./22945" <unfinished ...>
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23533
[pid 23533] <... chdir resumed>)        = 0
[pid 23533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23533] setpgid(0, 0)               = 0
[pid 23533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23533] write(3, "1000", 4)         = 4
[pid 23533] close(3)                    = 0
[pid 23533] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23533] write(1, "executing program\n", 18executing program
) = 18
[pid 23533] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23533] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23533] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23533] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23533] exit_group(0)               = ?
[pid 23533] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23533, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22945", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22945", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22945/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22945/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22945/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22945")                        = 0
mkdir("./22946", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23534
./strace-static-x86_64: Process 23534 attached
[pid 23534] set_robust_list(0x55557a32b660, 24) = 0
[pid 23534] chdir("./22946")            = 0
[pid 23534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23534] setpgid(0, 0)               = 0
[pid 23534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23534] write(3, "1000", 4)         = 4
[pid 23534] close(3)                    = 0
[pid 23534] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23534] write(1, "executing program\n", 18executing program
) = 18
[pid 23534] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23534] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23534] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23534] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23534] exit_group(0)               = ?
[pid 23534] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23534, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22946", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22946", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22946/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22946/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22946/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22946")                        = 0
mkdir("./22947", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23535
./strace-static-x86_64: Process 23535 attached
[pid 23535] set_robust_list(0x55557a32b660, 24) = 0
[pid 23535] chdir("./22947")            = 0
[pid 23535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23535] setpgid(0, 0)               = 0
[pid 23535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23535] write(3, "1000", 4)         = 4
[pid 23535] close(3)                    = 0
[pid 23535] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23535] write(1, "executing program\n", 18executing program
) = 18
[pid 23535] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23535] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23535] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23535] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23535] exit_group(0)               = ?
[pid 23535] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23535, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22947", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22947", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22947/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22947/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22947/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22947")                        = 0
mkdir("./22948", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23536 attached
 <unfinished ...>
[pid 23536] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23536
[pid 23536] chdir("./22948")            = 0
[pid 23536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23536] setpgid(0, 0)               = 0
[pid 23536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23536] write(3, "1000", 4)         = 4
[pid 23536] close(3)                    = 0
[pid 23536] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23536] write(1, "executing program\n", 18executing program
) = 18
[pid 23536] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23536] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23536] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23536] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23536] exit_group(0)               = ?
[pid 23536] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23536, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22948", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22948", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22948/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22948/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22948/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22948")                        = 0
mkdir("./22949", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23537
./strace-static-x86_64: Process 23537 attached
[pid 23537] set_robust_list(0x55557a32b660, 24) = 0
[pid 23537] chdir("./22949")            = 0
[pid 23537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23537] setpgid(0, 0)               = 0
[pid 23537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23537] write(3, "1000", 4)         = 4
[pid 23537] close(3)                    = 0
[pid 23537] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23537] write(1, "executing program\n", 18executing program
) = 18
[pid 23537] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23537] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23537] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23537] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23537] exit_group(0)               = ?
[pid 23537] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23537, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22949", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22949", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22949/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22949/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22949/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22949")                        = 0
mkdir("./22950", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23538 attached
 <unfinished ...>
[pid 23538] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23538
[pid 23538] chdir("./22950")            = 0
[pid 23538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23538] setpgid(0, 0)               = 0
[pid 23538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23538] write(3, "1000", 4)         = 4
[pid 23538] close(3)                    = 0
[pid 23538] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23538] write(1, "executing program\n", 18executing program
) = 18
[pid 23538] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23538] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23538] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23538] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23538] exit_group(0)               = ?
[pid 23538] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23538, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22950", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22950", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22950/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22950/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22950/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22950")                        = 0
mkdir("./22951", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23539
./strace-static-x86_64: Process 23539 attached
[pid 23539] set_robust_list(0x55557a32b660, 24) = 0
[pid 23539] chdir("./22951")            = 0
[pid 23539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23539] setpgid(0, 0)               = 0
[pid 23539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23539] write(3, "1000", 4)         = 4
[pid 23539] close(3)                    = 0
[pid 23539] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23539] write(1, "executing program\n", 18) = 18
[pid 23539] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23539] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23539] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23539] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23539] exit_group(0)               = ?
[pid 23539] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23539, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22951", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22951", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22951/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22951/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22951/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22951")                        = 0
mkdir("./22952", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23540
./strace-static-x86_64: Process 23540 attached
[pid 23540] set_robust_list(0x55557a32b660, 24) = 0
[pid 23540] chdir("./22952")            = 0
[pid 23540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23540] setpgid(0, 0)               = 0
[pid 23540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23540] write(3, "1000", 4)         = 4
[pid 23540] close(3)                    = 0
[pid 23540] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23540] write(1, "executing program\n", 18executing program
) = 18
[pid 23540] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23540] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23540] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23540] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23540] exit_group(0)               = ?
[pid 23540] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23540, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22952", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22952", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22952/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22952/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22952/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22952")                        = 0
mkdir("./22953", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23541 attached
, child_tidptr=0x55557a32b650) = 23541
[pid 23541] set_robust_list(0x55557a32b660, 24) = 0
[pid 23541] chdir("./22953")            = 0
[pid 23541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23541] setpgid(0, 0)               = 0
[pid 23541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23541] write(3, "1000", 4)         = 4
[pid 23541] close(3)                    = 0
[pid 23541] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23541] write(1, "executing program\n", 18) = 18
[pid 23541] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23541] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23541] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23541] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23541] exit_group(0)               = ?
[pid 23541] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23541, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22953", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22953", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22953/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22953/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22953/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22953")                        = 0
mkdir("./22954", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23542
./strace-static-x86_64: Process 23542 attached
[pid 23542] set_robust_list(0x55557a32b660, 24) = 0
[pid 23542] chdir("./22954")            = 0
[pid 23542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23542] setpgid(0, 0)               = 0
[pid 23542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23542] write(3, "1000", 4)         = 4
[pid 23542] close(3)                    = 0
[pid 23542] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23542] write(1, "executing program\n", 18executing program
) = 18
[pid 23542] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23542] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23542] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23542] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23542] exit_group(0)               = ?
[pid 23542] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23542, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22954", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22954", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22954/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22954/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22954/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22954")                        = 0
mkdir("./22955", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23543 attached
, child_tidptr=0x55557a32b650) = 23543
[pid 23543] set_robust_list(0x55557a32b660, 24) = 0
[pid 23543] chdir("./22955")            = 0
[pid 23543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23543] setpgid(0, 0)               = 0
[pid 23543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23543] write(3, "1000", 4)         = 4
[pid 23543] close(3)                    = 0
[pid 23543] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23543] write(1, "executing program\n", 18executing program
) = 18
[pid 23543] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23543] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23543] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23543] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23543] exit_group(0)               = ?
[pid 23543] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23543, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22955", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22955", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22955/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22955/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22955/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22955")                        = 0
mkdir("./22956", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23544
./strace-static-x86_64: Process 23544 attached
[pid 23544] set_robust_list(0x55557a32b660, 24) = 0
[pid 23544] chdir("./22956")            = 0
[pid 23544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23544] setpgid(0, 0)               = 0
[pid 23544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23544] write(3, "1000", 4)         = 4
[pid 23544] close(3)                    = 0
[pid 23544] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23544] write(1, "executing program\n", 18executing program
) = 18
[pid 23544] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23544] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23544] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23544] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23544] exit_group(0)               = ?
[pid 23544] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23544, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22956", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22956", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22956/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22956/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22956/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22956")                        = 0
mkdir("./22957", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23545
./strace-static-x86_64: Process 23545 attached
[pid 23545] set_robust_list(0x55557a32b660, 24) = 0
[pid 23545] chdir("./22957")            = 0
[pid 23545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23545] setpgid(0, 0)               = 0
[pid 23545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23545] write(3, "1000", 4)         = 4
[pid 23545] close(3)                    = 0
[pid 23545] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23545] write(1, "executing program\n", 18executing program
) = 18
[pid 23545] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23545] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23545] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23545] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23545] exit_group(0)               = ?
[pid 23545] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23545, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22957", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22957", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22957/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22957/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22957/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22957")                        = 0
mkdir("./22958", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23546
./strace-static-x86_64: Process 23546 attached
[pid 23546] set_robust_list(0x55557a32b660, 24) = 0
[pid 23546] chdir("./22958")            = 0
[pid 23546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23546] setpgid(0, 0)               = 0
[pid 23546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23546] write(3, "1000", 4)         = 4
[pid 23546] close(3)                    = 0
[pid 23546] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23546] write(1, "executing program\n", 18executing program
) = 18
[pid 23546] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23546] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23546] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23546] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23546] exit_group(0)               = ?
[pid 23546] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23546, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22958", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22958", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22958/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22958/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22958/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22958")                        = 0
mkdir("./22959", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23547
./strace-static-x86_64: Process 23547 attached
[pid 23547] set_robust_list(0x55557a32b660, 24) = 0
[pid 23547] chdir("./22959")            = 0
[pid 23547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23547] setpgid(0, 0)               = 0
[pid 23547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23547] write(3, "1000", 4)         = 4
[pid 23547] close(3)                    = 0
[pid 23547] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23547] write(1, "executing program\n", 18) = 18
[pid 23547] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23547] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23547] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23547] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23547] exit_group(0)               = ?
[pid 23547] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23547, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22959", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22959", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22959/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22959/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22959/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22959")                        = 0
mkdir("./22960", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23548 attached
, child_tidptr=0x55557a32b650) = 23548
[pid 23548] set_robust_list(0x55557a32b660, 24) = 0
[pid 23548] chdir("./22960")            = 0
[pid 23548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23548] setpgid(0, 0)               = 0
[pid 23548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23548] write(3, "1000", 4)         = 4
[pid 23548] close(3)                    = 0
[pid 23548] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23548] write(1, "executing program\n", 18executing program
) = 18
[pid 23548] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23548] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23548] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23548] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23548] exit_group(0)               = ?
[pid 23548] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23548, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22960", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22960", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22960/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22960/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22960/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22960")                        = 0
mkdir("./22961", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23549
./strace-static-x86_64: Process 23549 attached
[pid 23549] set_robust_list(0x55557a32b660, 24) = 0
[pid 23549] chdir("./22961")            = 0
[pid 23549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23549] setpgid(0, 0)               = 0
[pid 23549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23549] write(3, "1000", 4)         = 4
[pid 23549] close(3)                    = 0
[pid 23549] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23549] write(1, "executing program\n", 18executing program
) = 18
[pid 23549] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23549] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23549] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23549] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23549] exit_group(0)               = ?
[pid 23549] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23549, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22961", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22961", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22961/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22961/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22961/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22961")                        = 0
mkdir("./22962", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23550
./strace-static-x86_64: Process 23550 attached
[pid 23550] set_robust_list(0x55557a32b660, 24) = 0
[pid 23550] chdir("./22962")            = 0
[pid 23550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23550] setpgid(0, 0)               = 0
[pid 23550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23550] write(3, "1000", 4)         = 4
[pid 23550] close(3)                    = 0
[pid 23550] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23550] write(1, "executing program\n", 18executing program
) = 18
[pid 23550] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23550] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23550] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23550] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23550] exit_group(0)               = ?
[pid 23550] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23550, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22962", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22962", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22962/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22962/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22962/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22962")                        = 0
mkdir("./22963", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23551
./strace-static-x86_64: Process 23551 attached
[pid 23551] set_robust_list(0x55557a32b660, 24) = 0
[pid 23551] chdir("./22963")            = 0
[pid 23551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23551] setpgid(0, 0)               = 0
[pid 23551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23551] write(3, "1000", 4)         = 4
[pid 23551] close(3)                    = 0
[pid 23551] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23551] write(1, "executing program\n", 18) = 18
[pid 23551] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23551] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23551] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23551] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23551] exit_group(0)               = ?
[pid 23551] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23551, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22963", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22963", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22963/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22963/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22963/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22963")                        = 0
mkdir("./22964", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23552 attached
, child_tidptr=0x55557a32b650) = 23552
[pid 23552] set_robust_list(0x55557a32b660, 24) = 0
[pid 23552] chdir("./22964")            = 0
[pid 23552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23552] setpgid(0, 0)               = 0
[pid 23552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23552] write(3, "1000", 4)         = 4
[pid 23552] close(3)                    = 0
[pid 23552] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23552] write(1, "executing program\n", 18) = 18
[pid 23552] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23552] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23552] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23552] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23552] exit_group(0)               = ?
[pid 23552] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23552, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22964", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22964", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22964/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22964/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22964/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22964")                        = 0
mkdir("./22965", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23553 attached
, child_tidptr=0x55557a32b650) = 23553
[pid 23553] set_robust_list(0x55557a32b660, 24) = 0
[pid 23553] chdir("./22965")            = 0
[pid 23553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23553] setpgid(0, 0)               = 0
[pid 23553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23553] write(3, "1000", 4)         = 4
[pid 23553] close(3)                    = 0
[pid 23553] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23553] write(1, "executing program\n", 18) = 18
[pid 23553] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23553] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23553] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23553] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23553] exit_group(0)               = ?
[pid 23553] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23553, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22965", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22965", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22965/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22965/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22965/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22965")                        = 0
mkdir("./22966", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23554
./strace-static-x86_64: Process 23554 attached
[pid 23554] set_robust_list(0x55557a32b660, 24) = 0
[pid 23554] chdir("./22966")            = 0
[pid 23554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23554] setpgid(0, 0)               = 0
[pid 23554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23554] write(3, "1000", 4)         = 4
[pid 23554] close(3)                    = 0
[pid 23554] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23554] write(1, "executing program\n", 18executing program
) = 18
[pid 23554] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23554] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23554] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23554] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23554] exit_group(0)               = ?
[pid 23554] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23554, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22966", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22966", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22966/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22966/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22966/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22966")                        = 0
mkdir("./22967", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23555 attached
 <unfinished ...>
[pid 23555] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23555
[pid 23555] chdir("./22967")            = 0
[pid 23555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23555] setpgid(0, 0)               = 0
[pid 23555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23555] write(3, "1000", 4)         = 4
[pid 23555] close(3)                    = 0
[pid 23555] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23555] write(1, "executing program\n", 18executing program
) = 18
[pid 23555] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23555] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23555] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23555] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23555] exit_group(0)               = ?
[pid 23555] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23555, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22967", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22967", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22967/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22967/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22967/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22967")                        = 0
mkdir("./22968", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23556
./strace-static-x86_64: Process 23556 attached
[pid 23556] set_robust_list(0x55557a32b660, 24) = 0
[pid 23556] chdir("./22968")            = 0
[pid 23556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23556] setpgid(0, 0)               = 0
[pid 23556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23556] write(3, "1000", 4)         = 4
[pid 23556] close(3)                    = 0
[pid 23556] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23556] write(1, "executing program\n", 18executing program
) = 18
[pid 23556] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23556] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23556] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23556] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23556] exit_group(0)               = ?
[pid 23556] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23556, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22968", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22968", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22968/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22968/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22968/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22968")                        = 0
mkdir("./22969", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23557 attached
, child_tidptr=0x55557a32b650) = 23557
[pid 23557] set_robust_list(0x55557a32b660, 24) = 0
[pid 23557] chdir("./22969")            = 0
[pid 23557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23557] setpgid(0, 0)               = 0
[pid 23557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23557] write(3, "1000", 4)         = 4
[pid 23557] close(3)                    = 0
[pid 23557] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23557] write(1, "executing program\n", 18executing program
) = 18
[pid 23557] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23557] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23557] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23557] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23557] exit_group(0)               = ?
[pid 23557] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23557, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22969", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22969", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22969/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22969/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22969/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22969")                        = 0
mkdir("./22970", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23558 attached
 <unfinished ...>
[pid 23558] set_robust_list(0x55557a32b660, 24) = 0
[pid   288] <... clone resumed>, child_tidptr=0x55557a32b650) = 23558
[pid 23558] chdir("./22970")            = 0
[pid 23558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23558] setpgid(0, 0)               = 0
[pid 23558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23558] write(3, "1000", 4)         = 4
[pid 23558] close(3)                    = 0
[pid 23558] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23558] write(1, "executing program\n", 18executing program
) = 18
[pid 23558] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23558] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23558] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23558] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23558] exit_group(0)               = ?
[pid 23558] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23558, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22970", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22970", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22970/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22970/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22970/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22970")                        = 0
mkdir("./22971", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23559
./strace-static-x86_64: Process 23559 attached
[pid 23559] set_robust_list(0x55557a32b660, 24) = 0
[pid 23559] chdir("./22971")            = 0
[pid 23559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23559] setpgid(0, 0)               = 0
[pid 23559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23559] write(3, "1000", 4)         = 4
[pid 23559] close(3)                    = 0
[pid 23559] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23559] write(1, "executing program\n", 18executing program
) = 18
[pid 23559] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23559] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23559] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23559] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23559] exit_group(0)               = ?
[pid 23559] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23559, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22971", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22971", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22971/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22971/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22971/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22971")                        = 0
mkdir("./22972", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23560
./strace-static-x86_64: Process 23560 attached
[pid 23560] set_robust_list(0x55557a32b660, 24) = 0
[pid 23560] chdir("./22972")            = 0
[pid 23560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23560] setpgid(0, 0)               = 0
[pid 23560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23560] write(3, "1000", 4)         = 4
[pid 23560] close(3)                    = 0
[pid 23560] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23560] write(1, "executing program\n", 18executing program
) = 18
[pid 23560] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23560] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23560] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23560] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23560] exit_group(0)               = ?
[pid 23560] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23560, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22972", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22972", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22972/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22972/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22972/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22972")                        = 0
mkdir("./22973", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23561
./strace-static-x86_64: Process 23561 attached
[pid 23561] set_robust_list(0x55557a32b660, 24) = 0
[pid 23561] chdir("./22973")            = 0
[pid 23561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23561] setpgid(0, 0)               = 0
[pid 23561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23561] write(3, "1000", 4)         = 4
[pid 23561] close(3)                    = 0
[pid 23561] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23561] write(1, "executing program\n", 18executing program
) = 18
[pid 23561] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23561] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23561] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23561] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23561] exit_group(0)               = ?
[pid 23561] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23561, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22973", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22973", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22973/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22973/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22973/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22973")                        = 0
mkdir("./22974", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23562
./strace-static-x86_64: Process 23562 attached
[pid 23562] set_robust_list(0x55557a32b660, 24) = 0
[pid 23562] chdir("./22974")            = 0
[pid 23562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23562] setpgid(0, 0)               = 0
[pid 23562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23562] write(3, "1000", 4)         = 4
[pid 23562] close(3)                    = 0
[pid 23562] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23562] write(1, "executing program\n", 18) = 18
[pid 23562] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23562] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23562] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23562] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23562] exit_group(0)               = ?
[pid 23562] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23562, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22974", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22974", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22974/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22974/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22974/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22974")                        = 0
mkdir("./22975", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23563 attached
, child_tidptr=0x55557a32b650) = 23563
[pid 23563] set_robust_list(0x55557a32b660, 24) = 0
[pid 23563] chdir("./22975")            = 0
[pid 23563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23563] setpgid(0, 0)               = 0
[pid 23563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23563] write(3, "1000", 4)         = 4
[pid 23563] close(3)                    = 0
[pid 23563] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23563] write(1, "executing program\n", 18executing program
) = 18
[pid 23563] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23563] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23563] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23563] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23563] exit_group(0)               = ?
[pid 23563] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23563, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22975", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22975", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22975/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22975/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22975/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22975")                        = 0
mkdir("./22976", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23564
./strace-static-x86_64: Process 23564 attached
[pid 23564] set_robust_list(0x55557a32b660, 24) = 0
[pid 23564] chdir("./22976")            = 0
[pid 23564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23564] setpgid(0, 0)               = 0
[pid 23564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23564] write(3, "1000", 4)         = 4
[pid 23564] close(3)                    = 0
[pid 23564] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23564] write(1, "executing program\n", 18) = 18
[pid 23564] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23564] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23564] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23564] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23564] exit_group(0)               = ?
[pid 23564] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23564, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22976", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22976", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22976/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22976/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22976/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22976")                        = 0
mkdir("./22977", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23565
./strace-static-x86_64: Process 23565 attached
[pid 23565] set_robust_list(0x55557a32b660, 24) = 0
[pid 23565] chdir("./22977")            = 0
[pid 23565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23565] setpgid(0, 0)               = 0
[pid 23565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23565] write(3, "1000", 4)         = 4
[pid 23565] close(3)                    = 0
[pid 23565] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23565] write(1, "executing program\n", 18executing program
) = 18
[pid 23565] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23565] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23565] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23565] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23565] exit_group(0)               = ?
[pid 23565] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23565, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22977", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22977", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22977/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22977/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22977/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22977")                        = 0
mkdir("./22978", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23566
./strace-static-x86_64: Process 23566 attached
[pid 23566] set_robust_list(0x55557a32b660, 24) = 0
[pid 23566] chdir("./22978")            = 0
[pid 23566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23566] setpgid(0, 0)               = 0
[pid 23566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23566] write(3, "1000", 4)         = 4
[pid 23566] close(3)                    = 0
[pid 23566] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23566] write(1, "executing program\n", 18executing program
) = 18
[pid 23566] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23566] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23566] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23566] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23566] exit_group(0)               = ?
[pid 23566] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23566, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22978", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22978", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22978/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22978/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22978/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22978")                        = 0
mkdir("./22979", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23567
./strace-static-x86_64: Process 23567 attached
[pid 23567] set_robust_list(0x55557a32b660, 24) = 0
[pid 23567] chdir("./22979")            = 0
[pid 23567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23567] setpgid(0, 0)               = 0
[pid 23567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23567] write(3, "1000", 4)         = 4
[pid 23567] close(3)                    = 0
[pid 23567] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23567] write(1, "executing program\n", 18) = 18
[pid 23567] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23567] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23567] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23567] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23567] exit_group(0)               = ?
[pid 23567] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23567, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22979", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22979", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22979/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22979/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22979/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22979")                        = 0
mkdir("./22980", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23568 attached
, child_tidptr=0x55557a32b650) = 23568
[pid 23568] set_robust_list(0x55557a32b660, 24) = 0
[pid 23568] chdir("./22980")            = 0
[pid 23568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23568] setpgid(0, 0)               = 0
[pid 23568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23568] write(3, "1000", 4)         = 4
[pid 23568] close(3)                    = 0
[pid 23568] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23568] write(1, "executing program\n", 18executing program
) = 18
[pid 23568] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23568] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23568] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23568] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23568] exit_group(0)               = ?
[pid 23568] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22980", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22980", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22980/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22980/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22980/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22980")                        = 0
mkdir("./22981", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23569 attached
, child_tidptr=0x55557a32b650) = 23569
[pid 23569] set_robust_list(0x55557a32b660, 24) = 0
[pid 23569] chdir("./22981")            = 0
[pid 23569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23569] setpgid(0, 0)               = 0
[pid 23569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23569] write(3, "1000", 4)         = 4
[pid 23569] close(3)                    = 0
[pid 23569] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23569] write(1, "executing program\n", 18executing program
) = 18
[pid 23569] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23569] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23569] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23569] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23569] exit_group(0)               = ?
[pid 23569] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23569, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22981", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22981", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22981/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22981/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22981/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22981")                        = 0
mkdir("./22982", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23570 attached
, child_tidptr=0x55557a32b650) = 23570
[pid 23570] set_robust_list(0x55557a32b660, 24) = 0
[pid 23570] chdir("./22982")            = 0
[pid 23570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23570] setpgid(0, 0)               = 0
[pid 23570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23570] write(3, "1000", 4)         = 4
[pid 23570] close(3)                    = 0
[pid 23570] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23570] write(1, "executing program\n", 18executing program
) = 18
[pid 23570] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23570] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23570] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23570] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23570] exit_group(0)               = ?
[pid 23570] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23570, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22982", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22982", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22982/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22982/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22982/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22982")                        = 0
mkdir("./22983", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23571
./strace-static-x86_64: Process 23571 attached
[pid 23571] set_robust_list(0x55557a32b660, 24) = 0
[pid 23571] chdir("./22983")            = 0
[pid 23571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23571] setpgid(0, 0)               = 0
[pid 23571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23571] write(3, "1000", 4)         = 4
[pid 23571] close(3)                    = 0
[pid 23571] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23571] write(1, "executing program\n", 18executing program
) = 18
[pid 23571] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23571] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23571] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23571] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23571] exit_group(0)               = ?
[pid 23571] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23571, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22983", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22983", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22983/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22983/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22983/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22983")                        = 0
mkdir("./22984", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23572
./strace-static-x86_64: Process 23572 attached
[pid 23572] set_robust_list(0x55557a32b660, 24) = 0
[pid 23572] chdir("./22984")            = 0
[pid 23572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23572] setpgid(0, 0)               = 0
[pid 23572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23572] write(3, "1000", 4)         = 4
[pid 23572] close(3)                    = 0
[pid 23572] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23572] write(1, "executing program\n", 18) = 18
[pid 23572] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23572] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23572] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23572] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23572] exit_group(0)               = ?
[pid 23572] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23572, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22984", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22984", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22984/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22984/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22984/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22984")                        = 0
mkdir("./22985", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23573
./strace-static-x86_64: Process 23573 attached
[pid 23573] set_robust_list(0x55557a32b660, 24) = 0
[pid 23573] chdir("./22985")            = 0
[pid 23573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23573] setpgid(0, 0)               = 0
[pid 23573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23573] write(3, "1000", 4)         = 4
[pid 23573] close(3)                    = 0
[pid 23573] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23573] write(1, "executing program\n", 18) = 18
[pid 23573] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23573] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23573] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23573] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23573] exit_group(0)               = ?
[pid 23573] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23573, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22985", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22985", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22985/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22985/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22985/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22985")                        = 0
mkdir("./22986", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23574
./strace-static-x86_64: Process 23574 attached
[pid 23574] set_robust_list(0x55557a32b660, 24) = 0
[pid 23574] chdir("./22986")            = 0
[pid 23574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23574] setpgid(0, 0)               = 0
[pid 23574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23574] write(3, "1000", 4)         = 4
[pid 23574] close(3)                    = 0
[pid 23574] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23574] write(1, "executing program\n", 18) = 18
[pid 23574] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23574] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23574] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23574] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23574] exit_group(0)               = ?
[pid 23574] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23574, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22986", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22986", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22986/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22986/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22986/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22986")                        = 0
mkdir("./22987", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23575 attached
, child_tidptr=0x55557a32b650) = 23575
[pid 23575] set_robust_list(0x55557a32b660, 24) = 0
[pid 23575] chdir("./22987")            = 0
[pid 23575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23575] setpgid(0, 0)               = 0
[pid 23575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23575] write(3, "1000", 4)         = 4
[pid 23575] close(3)                    = 0
[pid 23575] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23575] write(1, "executing program\n", 18executing program
) = 18
[pid 23575] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23575] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23575] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23575] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23575] exit_group(0)               = ?
[pid 23575] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23575, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22987", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22987", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22987/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22987/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22987/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22987")                        = 0
mkdir("./22988", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23576
./strace-static-x86_64: Process 23576 attached
[pid 23576] set_robust_list(0x55557a32b660, 24) = 0
[pid 23576] chdir("./22988")            = 0
[pid 23576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23576] setpgid(0, 0)               = 0
[pid 23576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23576] write(3, "1000", 4)         = 4
[pid 23576] close(3)                    = 0
[pid 23576] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23576] write(1, "executing program\n", 18executing program
) = 18
[pid 23576] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23576] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23576] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23576] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23576] exit_group(0)               = ?
[pid 23576] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23576, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22988", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22988", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22988/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22988/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22988/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22988")                        = 0
mkdir("./22989", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23577
./strace-static-x86_64: Process 23577 attached
[pid 23577] set_robust_list(0x55557a32b660, 24) = 0
[pid 23577] chdir("./22989")            = 0
[pid 23577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23577] setpgid(0, 0)               = 0
[pid 23577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23577] write(3, "1000", 4)         = 4
[pid 23577] close(3)                    = 0
[pid 23577] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23577] write(1, "executing program\n", 18executing program
) = 18
[pid 23577] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23577] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23577] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23577] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23577] exit_group(0)               = ?
[pid 23577] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23577, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22989", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22989", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22989/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22989/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22989/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22989")                        = 0
mkdir("./22990", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23578 attached
, child_tidptr=0x55557a32b650) = 23578
[pid 23578] set_robust_list(0x55557a32b660, 24) = 0
[pid 23578] chdir("./22990")            = 0
[pid 23578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23578] setpgid(0, 0)               = 0
[pid 23578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23578] write(3, "1000", 4)         = 4
[pid 23578] close(3)                    = 0
[pid 23578] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23578] write(1, "executing program\n", 18executing program
) = 18
[pid 23578] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23578] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23578] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23578] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23578] exit_group(0)               = ?
[pid 23578] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23578, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22990", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22990", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22990/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22990/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22990/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22990")                        = 0
mkdir("./22991", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23579 attached
, child_tidptr=0x55557a32b650) = 23579
[pid 23579] set_robust_list(0x55557a32b660, 24) = 0
[pid 23579] chdir("./22991")            = 0
[pid 23579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23579] setpgid(0, 0)               = 0
[pid 23579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23579] write(3, "1000", 4)         = 4
[pid 23579] close(3)                    = 0
[pid 23579] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23579] write(1, "executing program\n", 18executing program
) = 18
[pid 23579] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23579] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23579] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23579] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23579] exit_group(0)               = ?
[pid 23579] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23579, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22991", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22991", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22991/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22991/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22991/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22991")                        = 0
mkdir("./22992", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23580 attached
, child_tidptr=0x55557a32b650) = 23580
[pid 23580] set_robust_list(0x55557a32b660, 24) = 0
[pid 23580] chdir("./22992")            = 0
[pid 23580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23580] setpgid(0, 0)               = 0
[pid 23580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23580] write(3, "1000", 4)         = 4
[pid 23580] close(3)                    = 0
[pid 23580] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23580] write(1, "executing program\n", 18executing program
) = 18
[pid 23580] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23580] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23580] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23580] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23580] exit_group(0)               = ?
[pid 23580] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23580, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22992", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22992", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22992/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22992/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22992/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22992")                        = 0
mkdir("./22993", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23581 attached
, child_tidptr=0x55557a32b650) = 23581
[pid 23581] set_robust_list(0x55557a32b660, 24) = 0
[pid 23581] chdir("./22993")            = 0
[pid 23581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23581] setpgid(0, 0)               = 0
[pid 23581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23581] write(3, "1000", 4)         = 4
[pid 23581] close(3)                    = 0
[pid 23581] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23581] write(1, "executing program\n", 18executing program
) = 18
[pid 23581] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23581] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23581] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23581] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23581] exit_group(0)               = ?
[pid 23581] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23581, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22993", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22993", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22993/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22993/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22993/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22993")                        = 0
mkdir("./22994", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23582
./strace-static-x86_64: Process 23582 attached
[pid 23582] set_robust_list(0x55557a32b660, 24) = 0
[pid 23582] chdir("./22994")            = 0
[pid 23582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23582] setpgid(0, 0)               = 0
[pid 23582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23582] write(3, "1000", 4)         = 4
[pid 23582] close(3)                    = 0
[pid 23582] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23582] write(1, "executing program\n", 18executing program
) = 18
[pid 23582] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23582] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23582] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23582] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23582] exit_group(0)               = ?
[pid 23582] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23582, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22994", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22994", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22994/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22994/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22994/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22994")                        = 0
mkdir("./22995", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23583
./strace-static-x86_64: Process 23583 attached
[pid 23583] set_robust_list(0x55557a32b660, 24) = 0
[pid 23583] chdir("./22995")            = 0
[pid 23583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23583] setpgid(0, 0)               = 0
[pid 23583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23583] write(3, "1000", 4)         = 4
[pid 23583] close(3)                    = 0
[pid 23583] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23583] write(1, "executing program\n", 18executing program
) = 18
[pid 23583] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23583] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23583] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23583] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23583] exit_group(0)               = ?
[pid 23583] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23583, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22995", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22995", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22995/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22995/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22995/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22995")                        = 0
mkdir("./22996", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23584
./strace-static-x86_64: Process 23584 attached
[pid 23584] set_robust_list(0x55557a32b660, 24) = 0
[pid 23584] chdir("./22996")            = 0
[pid 23584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23584] setpgid(0, 0)               = 0
[pid 23584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23584] write(3, "1000", 4)         = 4
[pid 23584] close(3)                    = 0
executing program
[pid 23584] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23584] write(1, "executing program\n", 18) = 18
[pid 23584] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23584] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23584] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23584] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23584] exit_group(0)               = ?
[pid 23584] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23584, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22996", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22996", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22996/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22996/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22996/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22996")                        = 0
mkdir("./22997", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23585
./strace-static-x86_64: Process 23585 attached
[pid 23585] set_robust_list(0x55557a32b660, 24) = 0
[pid 23585] chdir("./22997")            = 0
[pid 23585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23585] setpgid(0, 0)               = 0
[pid 23585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23585] write(3, "1000", 4)         = 4
[pid 23585] close(3)                    = 0
[pid 23585] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23585] write(1, "executing program\n", 18) = 18
[pid 23585] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23585] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23585] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23585] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23585] exit_group(0)               = ?
[pid 23585] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23585, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22997", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22997", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22997/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22997/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22997/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22997")                        = 0
mkdir("./22998", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 23586 attached
, child_tidptr=0x55557a32b650) = 23586
[pid 23586] set_robust_list(0x55557a32b660, 24) = 0
[pid 23586] chdir("./22998")            = 0
[pid 23586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23586] setpgid(0, 0)               = 0
[pid 23586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23586] write(3, "1000", 4)         = 4
[pid 23586] close(3)                    = 0
[pid 23586] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23586] write(1, "executing program\n", 18executing program
) = 18
[pid 23586] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23586] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23586] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23586] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23586] exit_group(0)               = ?
[pid 23586] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23586, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22998", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22998", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22998/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22998/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22998/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22998")                        = 0
mkdir("./22999", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23587
./strace-static-x86_64: Process 23587 attached
[pid 23587] set_robust_list(0x55557a32b660, 24) = 0
[pid 23587] chdir("./22999")            = 0
[pid 23587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23587] setpgid(0, 0)               = 0
[pid 23587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23587] write(3, "1000", 4)         = 4
[pid 23587] close(3)                    = 0
[pid 23587] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23587] write(1, "executing program\n", 18executing program
) = 18
[pid 23587] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23587] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23587] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23587] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23587] exit_group(0)               = ?
[pid 23587] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23587, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22999", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22999", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./22999/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22999/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22999/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22999")                        = 0
mkdir("./23000", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23588
./strace-static-x86_64: Process 23588 attached
[pid 23588] set_robust_list(0x55557a32b660, 24) = 0
[pid 23588] chdir("./23000")            = 0
[pid 23588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23588] setpgid(0, 0)               = 0
[pid 23588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23588] write(3, "1000", 4)         = 4
[pid 23588] close(3)                    = 0
[pid 23588] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 23588] write(1, "executing program\n", 18) = 18
[pid 23588] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23588] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23588] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23588] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23588] exit_group(0)               = ?
[pid 23588] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23588, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./23000", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23000", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./23000/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./23000/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./23000/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./23000")                        = 0
mkdir("./23001", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23589
./strace-static-x86_64: Process 23589 attached
[pid 23589] set_robust_list(0x55557a32b660, 24) = 0
[pid 23589] chdir("./23001")            = 0
[pid 23589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23589] setpgid(0, 0)               = 0
[pid 23589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23589] write(3, "1000", 4)         = 4
[pid 23589] close(3)                    = 0
[pid 23589] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 23589] write(1, "executing program\n", 18) = 18
[pid 23589] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23589] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23589] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23589] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23589] exit_group(0)               = ?
[pid 23589] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23589, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./23001", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23001", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./23001/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./23001/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./23001/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./23001")                        = 0
mkdir("./23002", 0777)                  = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557a32b650) = 23590
./strace-static-x86_64: Process 23590 attached
[pid 23590] set_robust_list(0x55557a32b660, 24) = 0
[pid 23590] chdir("./23002")            = 0
[pid 23590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 23590] setpgid(0, 0)               = 0
[pid 23590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 23590] write(3, "1000", 4)         = 4
[pid 23590] close(3)                    = 0
[pid 23590] symlink("/dev/binderfs", "./binderfs") = 0
[pid 23590] write(1, "executing program\n", 18executing program
) = 18
[pid 23590] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 23590] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 23590] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 23590] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 23590] exit_group(0)               = ?
[pid 23590] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23590, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./23002", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23002", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55557a32c6f0 /* 3 entries */, 32768) = 80
umount2("./23002/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./23002/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./23002/binderfs")              = 0
getdents64(3, 0x55557a32c6f0 /* 0 entries */, 32768) = 0